Package net.sourceforge.pmd.lang.java.rule.performance

Class UseStringBufferLengthRule

  • All Implemented Interfaces:
    JavaParserVisitor, net.sourceforge.pmd.lang.rule.ImmutableLanguage, net.sourceforge.pmd.properties.PropertySource, net.sourceforge.pmd.Rule
    public class UseStringBufferLengthRule
extends AbstractJavaRule
    This rule finds places where StringBuffer.toString() is called just to see if the string is 0 length by either using .equals("") or toString().length(). 
     StringBuffer sb = new StringBuffer("some string");
 if (sb.toString().equals("")) {
     // this is wrong
 }
 if (sb.length() == 0) {
     // this is right
 }
    Author:
    acaplan, Philip Graf