2069 lines
78 KiB
HTML
2069 lines
78 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta http-equiv="X-UA-Compatible" content="IE=edge">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<meta name="description" content="Rules that flag suboptimal code.">
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<meta name="keywords" content=" Performance, AvoidDebugStatements, AvoidDmlStatementsInLoops, AvoidSoqlInLoops, AvoidSoslInLoops, EagerlyLoadedDescribeSObjectResult, OperationWithLimitsInLoop">
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<title>Performance | PMD Source Code Analyzer</title>
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<link rel="stylesheet" href="css/syntax.css">
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<link rel="stylesheet" type="text/css" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.5.0/css/font-awesome.min.css">
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<link rel="stylesheet" href="css/lavish-bootstrap.css">
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<link rel="stylesheet" href="css/customstyles.css">
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<link rel="stylesheet" href="css/theme-blue.css">
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<link rel="stylesheet" href="css/pmd-customstyles.css">
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<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.4/jquery.min.js"></script>
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<script src="js/jquery.navgoco.min.js"></script>
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/anchor-js/2.0.0/anchor.min.js"></script>
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<script src="js/toc.js"></script>
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<script src="js/customscripts.js"></script>
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<link rel="shortcut icon" href="images/favicon.ico" type="image/x-icon">
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<link rel="icon" href="images/favicon.ico" type="image/x-icon">
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<![endif]-->
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<link rel="alternate" type="application/rss+xml" title="" href="https://pmd.github.io/pmd/feed.xml">
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<script>
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$(document).ready(function() {
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// Initialize navgoco with default options
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$("#mysidebar").navgoco({
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caretHtml: '',
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accordion: true,
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openClass: 'active', // open
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cookie: {
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name: 'navgoco',
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expires: false,
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slide: {
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duration: 400,
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easing: 'swing'
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}
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});
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$("#collapseAll").click(function(e) {
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e.preventDefault();
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$("#mysidebar").navgoco('toggle', false);
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e.preventDefault();
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$("#mysidebar").navgoco('toggle', true);
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</head>
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<body>
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<div id="topbar-content-offset">
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<!-- Navigation -->
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<nav class="navbar navbar-inverse navbar-fixed-top">
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<div class="container topnavlinks">
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<div class="navbar-header">
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<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
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<span class="sr-only">Toggle navigation</span>
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<span class="icon-bar"></span>
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<span class="icon-bar"></span>
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</button>
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<a class="fa fa-home fa-lg navbar-brand" href="index.html"> <span class="projectTitle"> PMD Source Code Analyzer Project</span></a>
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<li><a href="https://github.com/pmd/pmd/releases/latest" target="_blank">Download</a></li>
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<li><a href="https://github.com/pmd/pmd" target="_blank">Fork us on github</a></li>
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<li>
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<!--start search-->
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<div id="search-demo-container">
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<input type="text" id="search-input" placeholder="search...">
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<ul id="results-container"></ul>
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</div>
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<script src="js/jekyll-search.js" type="text/javascript"></script>
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<script type="text/javascript">
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SimpleJekyllSearch.init({
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searchInput: document.getElementById('search-input'),
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resultsContainer: document.getElementById('results-container'),
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dataSource: 'search.json',
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searchResultTemplate: '<li><a href="{url}" title="Performance">{title}</a></li>',
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noResultsText: 'No results found.',
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limit: 10,
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fuzzy: true,
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})
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</nav>
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<!-- Page Content -->
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<div class="container-toc-wrapper">
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<div class="container">
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<div class="col-lg-12"> </div>
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<!-- Content Row -->
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<div class="row">
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<!-- Sidebar Column -->
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<div class="col-md-3" id="tg-sb-sidebar">
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<ul id="mysidebar" class="nav">
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<li class="sidebarTitle">PMD 6.50.0-SNAPSHOT</li>
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<div class="sidebarTitleDate">Release date: 30-September-2022</div>
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<li>
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<a href="#">About</a>
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<ul>
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<li><a href="index.html">Home</a></li>
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<li><a href="pmd_release_notes.html">Release notes</a></li>
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<li><a href="pmd_next_major_development.html">PMD 7.0.0 development</a></li>
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<li><a href="pmd_about_help.html">Getting help</a></li>
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</ul>
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</li>
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<li>
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<a href="#">User Documentation</a>
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<ul>
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<li><a href="pmd_userdocs_installation.html">Installation and basic CLI usage</a></li>
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<li><a href="pmd_userdocs_making_rulesets.html">Making rulesets</a></li>
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<li><a href="pmd_userdocs_configuring_rules.html">Configuring rules</a></li>
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<li><a href="pmd_userdocs_best_practices.html">Best practices</a></li>
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<li><a href="pmd_userdocs_suppressing_warnings.html">Suppressing warnings</a></li>
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<li><a href="pmd_userdocs_incremental_analysis.html">Incremental analysis</a></li>
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<li><a href="pmd_userdocs_cli_reference.html">PMD CLI reference</a></li>
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<li><a href="pmd_userdocs_report_formats.html">PMD Report formats</a></li>
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||
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||
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||
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||
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||
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||
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||
<li class="subfolders">
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<a href="#">CPD reference</a>
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<ul>
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||
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||
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||
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||
<li><a href="pmd_userdocs_cpd.html">Copy-paste detection</a></li>
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||
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||
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||
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||
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||
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<li><a href="pmd_userdocs_cpd_report_formats.html">CPD Report formats</a></li>
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||
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||
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||
</ul>
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||
</li>
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||
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||
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||
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||
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||
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||
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||
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||
|
||
|
||
|
||
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||
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||
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||
<li class="subfolders">
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||
<a href="#">Extending PMD</a>
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||
<ul>
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||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_writing_rules_intro.html">Introduction to writing rules</a></li>
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||
|
||
|
||
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||
|
||
|
||
<li><a href="pmd_userdocs_extending_your_first_rule.html">Your first rule</a></li>
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||
|
||
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||
|
||
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||
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||
<li><a href="pmd_userdocs_extending_writing_xpath_rules.html">XPath rules</a></li>
|
||
|
||
|
||
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||
|
||
|
||
<li><a href="pmd_userdocs_extending_writing_java_rules.html">Java rules</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_designer_reference.html">Rule designer reference</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_defining_properties.html">Defining rule properties</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_metrics_howto.html">Using and defining code metrics</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_rule_guidelines.html">Rule guidelines</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_extending_testing.html">Testing your rules</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Tools / Integrations</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_tools_maven.html">Maven PMD Plugin</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_tools_gradle.html">Gradle</a></li>
|
||
|
||
|
||
|
||
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||
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||
<li><a href="pmd_userdocs_tools_ant.html">Ant</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_tools_java_api.html">PMD Java API</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_userdocs_tools_ci.html">CI integrations</a></li>
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||
|
||
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||
|
||
|
||
|
||
<li><a href="pmd_userdocs_tools.html">Other Tools / Integrations</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<li>
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||
|
||
<a href="#">Rule Reference</a>
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||
|
||
<ul>
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||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Apex Rules</a>
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||
<ul>
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||
|
||
|
||
|
||
<li><a href="pmd_rules_apex.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_apex_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_apex_codestyle.html">Code Style</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_apex_design.html">Design</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_apex_documentation.html">Documentation</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_apex_errorprone.html">Error Prone</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li class="active"><a href="pmd_rules_apex_performance.html">Performance</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_apex_security.html">Security</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Ecmascript Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_ecmascript.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_ecmascript_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_ecmascript_codestyle.html">Code Style</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_ecmascript_errorprone.html">Error Prone</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">HTML Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_html.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_html_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Java Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java_codestyle.html">Code Style</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java_design.html">Design</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java_documentation.html">Documentation</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java_errorprone.html">Error Prone</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java_multithreading.html">Multithreading</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java_performance.html">Performance</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_java_security.html">Security</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Java Server Pages Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_jsp.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_jsp_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_jsp_codestyle.html">Code Style</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_jsp_design.html">Design</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_jsp_errorprone.html">Error Prone</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_jsp_security.html">Security</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Maven POM Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_pom.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_pom_errorprone.html">Error Prone</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Modelica Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_modelica.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_modelica_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">PLSQL Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_plsql.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_plsql_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_plsql_codestyle.html">Code Style</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_plsql_design.html">Design</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_plsql_errorprone.html">Error Prone</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Salesforce VisualForce Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vf.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vf_security.html">Security</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">VM Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vm.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vm_bestpractices.html">Best Practices</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vm_design.html">Design</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_vm_errorprone.html">Error Prone</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">XML Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_xml.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_xml_errorprone.html">Error Prone</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">XSL Rules</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_xsl.html">Index</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_xsl_codestyle.html">Code Style</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_rules_xsl_performance.html">Performance</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<li>
|
||
|
||
<a href="#">Language Specific Documentation</a>
|
||
|
||
<ul>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_languages_jsp.html">JSP Support</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Java Support</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_languages_java.html">Java Versions</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_java_metrics_index.html">Java Code Metrics</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_apex_metrics_index.html">Apex code metrics</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_languages_plsql.html">PLSQL</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_languages_visualforce.html">Visualforce</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_languages_xml.html">XML and XML dialects</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_languages_html.html">HTML</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_languages_gherkin.html">Gherkin</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<li>
|
||
|
||
<a href="#">Developer Documentation</a>
|
||
|
||
<ul>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_development.html">Developer resources</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_building.html">Building PMD from source</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="https://github.com/pmd/pmd/blob/master/CONTRIBUTING.md" target="_blank">Contributing</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_writing_documentation.html">Writing documentation</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_roadmap.html">Roadmap</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_how_pmd_works.html">How PMD works</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_pmdtester.html">Pmdtester</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_rule_deprecation_policy.html">Rule Deprecation Policy</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Major contributions</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_major_rule_guidelines.html">Rule Guidelines</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_major_adding_new_language.html">Adding a new language</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_major_adding_new_cpd_language.html">Adding a new CPD language</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_major_adding_new_metrics_framework.html">Adding metrics support to a language</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Experimental features</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_devdocs_experimental_ast_dump.html">Creating (XML) dump of the AST</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<li>
|
||
|
||
<a href="#">Project documentation</a>
|
||
|
||
<ul>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Trivia about PMD</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_trivia_news.html">PMD in the press</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_trivia_products.html">Products & books related to PMD</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_trivia_similarprojects.html">Similar projects</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_trivia_meaning.html">What does 'PMD' mean?</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_faq.html">FAQ</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="license.html">License</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_credits.html">Credits</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_release_notes_old.html">Old release notes</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="subfolders">
|
||
<a href="#">Project management</a>
|
||
<ul>
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_committers_infrastructure.html">Infrastructure</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_committers_releasing.html">Release process</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_committers_merging_pull_requests.html">Merging pull requests</a></li>
|
||
|
||
|
||
|
||
|
||
|
||
<li><a href="pmd_projectdocs_committers_main_landing_page.html">Main Landing page</a></li>
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ul>
|
||
</li>
|
||
|
||
|
||
|
||
<!-- if you aren't using the accordion, uncomment this block:
|
||
<p class="external">
|
||
<a href="#" id="collapseAll">Collapse All</a> | <a href="#" id="expandAll">Expand All</a>
|
||
</p>
|
||
-->
|
||
</ul>
|
||
|
||
<!-- this highlights the active parent class in the navgoco sidebar. this is critical so that the parent expands when you're viewing a page. This must appear below the sidebar code above. Otherwise, if placed inside customscripts.js, the script runs before the sidebar code runs and the class never gets inserted.-->
|
||
<script>$("li.active").parents('li').toggleClass("active");</script>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
<!-- Content Column -->
|
||
<div class="col-md-9" id="tg-sb-content">
|
||
<header>
|
||
<div class="row">
|
||
<div class="col-lg-12">
|
||
<a href="./" role="button"
|
||
><i class="fa fa-home fa-lg"></i
|
||
></a>
|
||
» Performance
|
||
<a
|
||
target="_blank"
|
||
href="https://github.com/pmd/pmd/blob/master/docs/../pmd-apex/src/main/resources/category/apex/performance.xml"
|
||
class="pull-right"
|
||
role="button"
|
||
><i class="fa fa-github fa-lg"></i> Edit on GitHub</a
|
||
>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
<hr />
|
||
</header>
|
||
|
||
|
||
<div class="post-header">
|
||
<h1 class="post-title-main">Performance</h1>
|
||
</div>
|
||
|
||
|
||
|
||
<div class="post-content" data-github-edit-url="https://github.com/pmd/pmd/blob/master/docs/../pmd-apex/src/main/resources/category/apex/performance.xml">
|
||
|
||
|
||
<div class="summary">Rules that flag suboptimal code.</div>
|
||
|
||
<div id="inline-toc"><!-- empty, move TOC here when screen size too small --></div>
|
||
|
||
<!-- DO NOT EDIT THIS FILE. This file is generated from file ../pmd-apex/src/main/resources/category/apex/performance.xml. -->
|
||
<h2 id="avoiddebugstatements">AvoidDebugStatements</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.36.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Debug statements contribute to longer transactions and consume Apex CPU time even when debug logs are not being captured.</p>
|
||
|
||
<p>When possible make use of other debugging techniques such as the Apex Replay Debugger and Checkpoints that could cover <em>most</em> use cases.</p>
|
||
|
||
<p>For other valid use cases that the statement is in fact valid make use of the <code class="language-plaintext highlighter-rouge">@SuppressWarnings</code> annotation or the <code class="language-plaintext highlighter-rouge">//NOPMD</code> comment.</p>
|
||
|
||
<p><strong>This rule is defined by the following XPath expression:</strong></p>
|
||
<div class="language-xpath highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="o">//</span><span class="nt">MethodCallExpression</span><span class="p">[</span><span class="nf">lower-case</span><span class="p">(</span><span class="na">@FullMethodName</span><span class="p">)</span><span class="err">=</span><span class="s1">'system.debug'</span><span class="p">]</span><span class="w">
|
||
</span></code></pre></div></div>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Foo</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">bar</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="nc">Account</span> <span class="n">acc</span> <span class="o">=</span> <span class="o">[</span><span class="no">SELECT</span> <span class="nc">Name</span><span class="o">,</span> <span class="nc">Owner</span><span class="o">.</span><span class="na">Name</span> <span class="no">FROM</span> <span class="nc">Account</span> <span class="no">LIMIT</span> <span class="mi">1</span><span class="o">];</span>
|
||
<span class="nc">System</span><span class="o">.</span><span class="na">debug</span><span class="o">(</span><span class="n">accs</span><span class="o">);</span> <span class="c1">// will get reported</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="nd">@SuppressWarnings</span><span class="o">(</span><span class="err">'</span><span class="no">PMD</span><span class="o">.</span><span class="na">AvoidDebugStatements</span><span class="err">'</span><span class="o">)</span>
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">baz</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">try</span> <span class="o">{</span>
|
||
<span class="nc">Account</span> <span class="n">myAccount</span> <span class="o">=</span> <span class="n">bar</span><span class="o">();</span>
|
||
<span class="o">}</span> <span class="k">catch</span> <span class="o">(</span><span class="nc">Exception</span> <span class="n">e</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="nc">System</span><span class="o">.</span><span class="na">debug</span><span class="o">(</span><span class="nc">LoggingLevel</span><span class="o">.</span><span class="na">ERROR</span><span class="o">,</span> <span class="n">e</span><span class="o">.</span><span class="na">getMessage</span><span class="o">());</span> <span class="c1">// good to go</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule with the default properties by just referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/performance.xml/AvoidDebugStatements"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="avoiddmlstatementsinloops">AvoidDmlStatementsInLoops</h2>
|
||
|
||
<p><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f;">Deprecated</span></p>
|
||
|
||
<p><strong>Since:</strong> PMD 5.5.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Avoid DML statements inside loops to avoid hitting the DML governor limit. Instead, try to batch up the data into a list and invoke your DML once on that list of data outside the loop.</p>
|
||
|
||
<p>This rule is deprecated and will be removed with PMD 7.0.0. The rule is replaced
|
||
by the more general rule <a href="pmd_rules_apex_performance.html#operationwithlimitsinloop"><code class="language-plaintext highlighter-rouge">OperationWithLimitsInLoop</code></a>.</p>
|
||
|
||
<p><strong>This rule is defined by the following Java class:</strong> <a href="https://github.com/pmd/pmd/blob/master/pmd-apex/src/main/java/net/sourceforge/pmd/lang/apex/rule/performance/AvoidDmlStatementsInLoopsRule.java">net.sourceforge.pmd.lang.apex.rule.performance.AvoidDmlStatementsInLoopsRule</a></p>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Something</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">foo</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">151</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">Account</span> <span class="n">account</span><span class="o">;</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="n">insert</span> <span class="n">account</span><span class="o">;</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Performance</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>150</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule with the default properties by just referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/performance.xml/AvoidDmlStatementsInLoops"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="avoidsoqlinloops">AvoidSoqlInLoops</h2>
|
||
|
||
<p><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f;">Deprecated</span></p>
|
||
|
||
<p><strong>Since:</strong> PMD 5.5.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>New objects created within loops should be checked to see if they can created outside them and reused.</p>
|
||
|
||
<p>This rule is deprecated and will be removed with PMD 7.0.0. The rule is replaced
|
||
by the more general rule <a href="pmd_rules_apex_performance.html#operationwithlimitsinloop"><code class="language-plaintext highlighter-rouge">OperationWithLimitsInLoop</code></a>.</p>
|
||
|
||
<p><strong>This rule is defined by the following Java class:</strong> <a href="https://github.com/pmd/pmd/blob/master/pmd-apex/src/main/java/net/sourceforge/pmd/lang/apex/rule/performance/AvoidSoqlInLoopsRule.java">net.sourceforge.pmd.lang.apex.rule.performance.AvoidSoqlInLoopsRule</a></p>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Something</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kd">static</span> <span class="kt">void</span> <span class="nf">main</span><span class="o">(</span> <span class="nc">String</span> <span class="n">as</span><span class="o">[]</span> <span class="o">)</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">10</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">List</span><span class="o"><</span><span class="nc">Account</span><span class="o">></span> <span class="n">accounts</span> <span class="o">=</span> <span class="o">[</span><span class="no">SELECT</span> <span class="nc">Id</span> <span class="no">FROM</span> <span class="nc">Account</span><span class="o">];</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Performance</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>150</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule with the default properties by just referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/performance.xml/AvoidSoqlInLoops"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="avoidsoslinloops">AvoidSoslInLoops</h2>
|
||
|
||
<p><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f;">Deprecated</span></p>
|
||
|
||
<p><strong>Since:</strong> PMD 6.0.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Sosl calls within loops can cause governor limit exceptions.</p>
|
||
|
||
<p>This rule is deprecated and will be removed with PMD 7.0.0. The rule is replaced
|
||
by the more general rule <a href="pmd_rules_apex_performance.html#operationwithlimitsinloop"><code class="language-plaintext highlighter-rouge">OperationWithLimitsInLoop</code></a>.</p>
|
||
|
||
<p><strong>This rule is defined by the following Java class:</strong> <a href="https://github.com/pmd/pmd/blob/master/pmd-apex/src/main/java/net/sourceforge/pmd/lang/apex/rule/performance/AvoidSoslInLoopsRule.java">net.sourceforge.pmd.lang.apex.rule.performance.AvoidSoslInLoopsRule</a></p>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Something</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kd">static</span> <span class="kt">void</span> <span class="nf">main</span><span class="o">(</span> <span class="nc">String</span> <span class="n">as</span><span class="o">[]</span> <span class="o">)</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">10</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">List</span><span class="o"><</span><span class="nc">List</span><span class="o"><</span><span class="nc">SObject</span><span class="o">>></span> <span class="n">searchList</span> <span class="o">=</span> <span class="o">[</span><span class="no">FIND</span> <span class="err">'</span><span class="n">map</span><span class="o">*</span><span class="err">'</span> <span class="no">IN</span> <span class="no">ALL</span> <span class="no">FIELDS</span> <span class="no">RETURNING</span> <span class="nf">Account</span> <span class="o">(</span><span class="nc">Id</span><span class="o">,</span> <span class="nc">Name</span><span class="o">),</span> <span class="nc">Contact</span><span class="o">,</span> <span class="nc">Opportunity</span><span class="o">,</span> <span class="nc">Lead</span><span class="o">];</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Performance</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>150</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule with the default properties by just referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/performance.xml/AvoidSoslInLoops"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="eagerlyloadeddescribesobjectresult">EagerlyLoadedDescribeSObjectResult</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.40.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>This rule finds <code class="language-plaintext highlighter-rouge">DescribeSObjectResult</code>s which could have been loaded eagerly via <code class="language-plaintext highlighter-rouge">SObjectType.getDescribe()</code>.</p>
|
||
|
||
<p>When using <code class="language-plaintext highlighter-rouge">SObjectType.getDescribe()</code> or <code class="language-plaintext highlighter-rouge">Schema.describeSObjects()</code> without supplying a <code class="language-plaintext highlighter-rouge">SObjectDescribeOptions</code>,
|
||
implicitly it will be using <code class="language-plaintext highlighter-rouge">SObjectDescribeOptions.DEFAULT</code> and then all
|
||
child relationships will be loaded eagerly regardless whether this information is needed or not.
|
||
This has a potential negative performance impact. Instead <a href="https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_class_Schema_SObjectType.htm#unique_346834793"><code class="language-plaintext highlighter-rouge">SObjectType.getDescribe(options)</code></a>
|
||
or <a href="https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_methods_system_schema.htm#apex_System_Schema_describeSObjects"><code class="language-plaintext highlighter-rouge">Schema.describeSObjects(SObjectTypes, options)</code></a>
|
||
should be used and a <code class="language-plaintext highlighter-rouge">SObjectDescribeOptions</code> should be supplied. By using
|
||
<code class="language-plaintext highlighter-rouge">SObjectDescribeOptions.DEFERRED</code> the describe attributes will be lazily initialized at first use.</p>
|
||
|
||
<p>Lazy loading <code class="language-plaintext highlighter-rouge">DescribeSObjectResult</code> on picklist fields is not always recommended. The lazy loaded
|
||
describe objects might not be 100% accurate. It might be safer to explicitly use
|
||
<code class="language-plaintext highlighter-rouge">SObjectDescribeOptions.FULL</code> in such a case. The same applies when you need the same <code class="language-plaintext highlighter-rouge">DescribeSObjectResult</code>
|
||
to be consistent across different contexts and API versions.</p>
|
||
|
||
<p>Properties:</p>
|
||
|
||
<ul>
|
||
<li><code class="language-plaintext highlighter-rouge">noDefault</code>: The behavior of <code class="language-plaintext highlighter-rouge">SObjectDescribeOptions.DEFAULT</code> changes from API Version 43 to 44:
|
||
With API Version 43, the attributes are loaded eagerly. With API Version 44, they are loaded lazily.
|
||
Simply using <code class="language-plaintext highlighter-rouge">SObjectDescribeOptions.DEFAULT</code> doesn’t automatically make use of lazy loading.
|
||
(unless “Use Improved Schema Caching” critical update is applied, <code class="language-plaintext highlighter-rouge">SObjectDescribeOptions.DEFAULT</code> does fallback
|
||
to lazy loading)
|
||
With this property enabled, such usages are found.
|
||
You might ignore this, if you can make sure, that you don’t run a mix of API Versions.</li>
|
||
</ul>
|
||
|
||
<p><strong>This rule is defined by the following XPath expression:</strong></p>
|
||
<div class="language-xpath highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="o">//</span><span class="nt">MethodCallExpression</span><span class="w">
|
||
</span><span class="p">[</span><span class="w">
|
||
</span><span class="nf">lower-case</span><span class="p">(</span><span class="na">@MethodName</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="s2">"getdescribe"</span><span class="w"> </span><span class="ow">and</span><span class="w"> </span><span class="nt">ReferenceExpression</span><span class="p">[</span><span class="na">@SObjectType</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="nf">true</span><span class="p">()]</span><span class="w">
|
||
</span><span class="ow">or</span><span class="w"> </span><span class="nf">lower-case</span><span class="p">(</span><span class="na">@MethodName</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="s2">"describesobjects"</span><span class="w">
|
||
</span><span class="p">]</span><span class="w">
|
||
</span><span class="p">[</span><span class="ow">not</span><span class="p">(</span><span class="nt">VariableExpression</span><span class="o">/</span><span class="nt">ReferenceExpression</span><span class="w">
|
||
</span><span class="p">[</span><span class="nf">lower-case</span><span class="p">(</span><span class="na">@Image</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="p">(</span><span class="s2">"sobjectdescribeoptions"</span><span class="p">,</span><span class="w"> </span><span class="s2">"fielddescribeoptions"</span><span class="p">)]</span><span class="w">
|
||
</span><span class="p">)</span><span class="w">
|
||
</span><span class="p">]</span><span class="w">
|
||
</span><span class="p">|</span><span class="w">
|
||
</span><span class="o">//</span><span class="nt">ReferenceExpression</span><span class="w">
|
||
</span><span class="p">[</span><span class="nv">$noDefault</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="nf">true</span><span class="p">()]</span><span class="w">
|
||
</span><span class="p">[</span><span class="nf">lower-case</span><span class="p">(</span><span class="na">@Image</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="s2">"sobjectdescribeoptions"</span><span class="p">]</span><span class="w">
|
||
</span><span class="p">[</span><span class="kn">parent::</span><span class="nt">VariableExpression</span><span class="p">[</span><span class="nf">lower-case</span><span class="p">(</span><span class="na">@Image</span><span class="p">)</span><span class="w"> </span><span class="err">=</span><span class="w"> </span><span class="s2">"default"</span><span class="p">]]</span><span class="w">
|
||
</span></code></pre></div></div>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Foo</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kd">static</span> <span class="kt">void</span> <span class="nf">bar</span><span class="o">(</span><span class="nc">List</span><span class="o"><</span><span class="nc">Account</span><span class="o">></span> <span class="n">accounts</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="k">if</span> <span class="o">(</span><span class="nc">Account</span><span class="o">.</span><span class="na">SObjectType</span><span class="o">.</span><span class="na">getDescribe</span><span class="o">(</span><span class="nc">SObjectDescribeOptions</span><span class="o">.</span><span class="na">DEFERRED</span><span class="o">).</span><span class="na">isCreateable</span><span class="o">())</span> <span class="o">{</span>
|
||
<span class="n">insert</span> <span class="n">accounts</span><span class="o">;</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Style</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>1</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>noDefault</td>
|
||
<td>false</td>
|
||
<td>Do not allow SObjectDescribeOptions.DEFAULT option to ensure consistent results no matter where getDescribe is called</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule with the default properties by just referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/performance.xml/EagerlyLoadedDescribeSObjectResult"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>Use this rule and customize it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/performance.xml/EagerlyLoadedDescribeSObjectResult"</span><span class="nt">></span>
|
||
<span class="nt"><properties></span>
|
||
<span class="nt"><property</span> <span class="na">name=</span><span class="s">"noDefault"</span> <span class="na">value=</span><span class="s">"false"</span> <span class="nt">/></span>
|
||
<span class="nt"></properties></span>
|
||
<span class="nt"></rule></span>
|
||
</code></pre></div></div>
|
||
|
||
<h2 id="operationwithlimitsinloop">OperationWithLimitsInLoop</h2>
|
||
|
||
<p><strong>Since:</strong> PMD 6.29.0</p>
|
||
|
||
<p><strong>Priority:</strong> Medium (3)</p>
|
||
|
||
<p>Database class methods, DML operations, SOQL queries, SOSL queries, Approval class methods, Email sending, async scheduling or queueing within loops can cause governor limit exceptions. Instead, try to batch up the data into a list and invoke the operation once on that list of data outside the loop.</p>
|
||
|
||
<p><strong>This rule is defined by the following Java class:</strong> <a href="https://github.com/pmd/pmd/blob/master/pmd-apex/src/main/java/net/sourceforge/pmd/lang/apex/rule/performance/OperationWithLimitsInLoopRule.java">net.sourceforge.pmd.lang.apex.rule.performance.OperationWithLimitsInLoopRule</a></p>
|
||
|
||
<p><strong>Example(s):</strong></p>
|
||
|
||
<div class="language-java highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="kd">public</span> <span class="kd">class</span> <span class="nc">Something</span> <span class="o">{</span>
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">databaseMethodInsideOfLoop</span><span class="o">(</span><span class="nc">List</span><span class="o"><</span><span class="nc">Account</span><span class="o">></span> <span class="n">accounts</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Account</span> <span class="n">a</span> <span class="o">:</span> <span class="n">accounts</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="nc">Database</span><span class="o">.</span><span class="na">insert</span><span class="o">(</span><span class="n">a</span><span class="o">);</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">dmlInsideOfLoop</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">151</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">Account</span> <span class="n">account</span><span class="o">;</span>
|
||
<span class="c1">// ...</span>
|
||
<span class="n">insert</span> <span class="n">account</span><span class="o">;</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">soqlInsideOfLoop</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">10</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">List</span><span class="o"><</span><span class="nc">Account</span><span class="o">></span> <span class="n">accounts</span> <span class="o">=</span> <span class="o">[</span><span class="no">SELECT</span> <span class="nc">Id</span> <span class="no">FROM</span> <span class="nc">Account</span><span class="o">];</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">soslInsideOfLoop</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">10</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">List</span><span class="o"><</span><span class="nc">List</span><span class="o"><</span><span class="nc">SObject</span><span class="o">>></span> <span class="n">searchList</span> <span class="o">=</span> <span class="o">[</span><span class="no">FIND</span> <span class="err">'</span><span class="n">map</span><span class="o">*</span><span class="err">'</span> <span class="no">IN</span> <span class="no">ALL</span> <span class="no">FIELDS</span> <span class="no">RETURNING</span> <span class="nf">Account</span> <span class="o">(</span><span class="nc">Id</span><span class="o">,</span> <span class="nc">Name</span><span class="o">),</span> <span class="nc">Contact</span><span class="o">,</span> <span class="nc">Opportunity</span><span class="o">,</span> <span class="nc">Lead</span><span class="o">];</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">messageInsideOfLoop</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">10</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">Messaging</span><span class="o">.</span><span class="na">SingleEmailMessage</span> <span class="n">email</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">Messaging</span><span class="o">.</span><span class="na">SingleEmailMessage</span><span class="o">();</span>
|
||
<span class="nc">Messaging</span><span class="o">.</span><span class="na">sendEmail</span><span class="o">(</span><span class="k">new</span> <span class="nc">Messaging</span><span class="o">.</span><span class="na">SingleEmailMessage</span><span class="o">[]{</span><span class="n">email</span><span class="o">});</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">approvalInsideOfLoop</span><span class="o">(</span><span class="nc">Account</span><span class="o">[]</span> <span class="n">accs</span><span class="o">)</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">10</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">Account</span> <span class="n">acc</span> <span class="o">=</span> <span class="n">accs</span><span class="o">[</span><span class="n">i</span><span class="o">];</span>
|
||
<span class="nc">Approval</span><span class="o">.</span><span class="na">ProcessSubmitRequest</span> <span class="n">req</span> <span class="o">=</span> <span class="k">new</span> <span class="nc">Approval</span><span class="o">.</span><span class="na">ProcessSubmitRequest</span><span class="o">();</span>
|
||
<span class="n">req</span><span class="o">.</span><span class="na">setObjectId</span><span class="o">(</span><span class="n">acc</span><span class="o">.</span><span class="na">Id</span><span class="o">);</span>
|
||
<span class="nc">Approval</span><span class="o">.</span><span class="na">process</span><span class="o">(</span><span class="n">req</span><span class="o">);</span>
|
||
<span class="nc">Approval</span><span class="o">.</span><span class="na">lock</span><span class="o">(</span><span class="n">acc</span><span class="o">);</span>
|
||
<span class="nc">Approval</span><span class="o">.</span><span class="na">unlock</span><span class="o">(</span><span class="n">acc</span><span class="o">);</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
|
||
<span class="kd">public</span> <span class="kt">void</span> <span class="nf">asyncInsideOfLoop</span><span class="o">()</span> <span class="o">{</span>
|
||
<span class="k">for</span> <span class="o">(</span><span class="nc">Integer</span> <span class="n">i</span> <span class="o">=</span> <span class="mi">0</span><span class="o">;</span> <span class="n">i</span> <span class="o"><</span> <span class="mi">10</span><span class="o">;</span> <span class="n">i</span><span class="o">++)</span> <span class="o">{</span>
|
||
<span class="nc">System</span><span class="o">.</span><span class="na">enqueueJob</span><span class="o">(</span><span class="k">new</span> <span class="nc">MyQueueable</span><span class="o">());</span>
|
||
<span class="nc">System</span><span class="o">.</span><span class="na">schedule</span><span class="o">(</span><span class="sc">'x'</span><span class="o">,</span> <span class="err">'</span><span class="mi">0</span> <span class="mi">0</span> <span class="mi">0</span> <span class="mi">1</span> <span class="mi">1</span> <span class="o">?</span><span class="err">'</span><span class="o">,</span> <span class="k">new</span> <span class="nc">MySchedule</span><span class="o">());</span>
|
||
<span class="nc">System</span><span class="o">.</span><span class="na">scheduleBatch</span><span class="o">(</span><span class="k">new</span> <span class="nc">MyBatch</span><span class="o">(),</span> <span class="sc">'x'</span><span class="o">,</span> <span class="mi">1</span><span class="o">);</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
<span class="o">}</span>
|
||
</code></pre></div></div>
|
||
|
||
<p><strong>This rule has the following properties:</strong></p>
|
||
|
||
<table>
|
||
<thead>
|
||
<tr>
|
||
<th>Name</th>
|
||
<th>Default Value</th>
|
||
<th>Description</th>
|
||
<th>Multivalued</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>cc_categories</td>
|
||
<td>Performance</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Categories</td>
|
||
<td>yes. Delimiter is ‘|’.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_remediation_points_multiplier</td>
|
||
<td>150</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Remediation Points multiplier</td>
|
||
<td>no</td>
|
||
</tr>
|
||
<tr>
|
||
<td>cc_block_highlighting</td>
|
||
<td>false</td>
|
||
<td><span style="border-radius: 0.25em; color: #fff; padding: 0.2em 0.6em 0.3em; display: inline; background-color: #d9534f; font-size: 75%;">Deprecated</span> Code Climate Block Highlighting</td>
|
||
<td>no</td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p><strong>Use this rule with the default properties by just referencing it:</strong></p>
|
||
<div class="language-xml highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nt"><rule</span> <span class="na">ref=</span><span class="s">"category/apex/performance.xml/OperationWithLimitsInLoop"</span> <span class="nt">/></span>
|
||
</code></pre></div></div>
|
||
|
||
|
||
|
||
<div class="tags">
|
||
|
||
</div>
|
||
|
||
|
||
|
||
</div>
|
||
|
||
|
||
<footer>
|
||
|
||
<hr />
|
||
<div>
|
||
This documentation is written in markdown. <br />
|
||
If there is something missing or can be improved, edit this page on
|
||
github and create a PR:
|
||
<a
|
||
target="_blank"
|
||
href="https://github.com/pmd/pmd/blob/master/docs/../pmd-apex/src/main/resources/category/apex/performance.xml"
|
||
role="button"
|
||
><i class="fa fa-github fa-lg"></i> Edit on GitHub</a
|
||
>
|
||
</div>
|
||
|
||
<hr />
|
||
<div class="row">
|
||
<div class="col-lg-12 footer">
|
||
©2022 PMD Open Source Project. All rights
|
||
reserved. <br />
|
||
Site last generated: Sep 11, 2022 <br />
|
||
<p>
|
||
<img src="images/pmd-logo-small.png" alt="Company
|
||
logo"/>
|
||
</p>
|
||
</div>
|
||
</div>
|
||
</footer>
|
||
|
||
|
||
</div>
|
||
|
||
<!-- /.row -->
|
||
</div>
|
||
<!-- /.container -->
|
||
</div>
|
||
|
||
|
||
<!-- Sticky TOC column -->
|
||
<div class="toc-col">
|
||
<div id="toc"></div>
|
||
</div>
|
||
|
||
<!-- /.toc-container-wrapper -->
|
||
</div>
|
||
</div>
|
||
</body>
|
||
|
||
</html>
|