net.sourceforge.pmd.rules.strings
Class ConsecutiveLiteralAppends

java.lang.Object
  net.sourceforge.pmd.ast.JavaParserVisitorAdapter
      net.sourceforge.pmd.AbstractRule
          net.sourceforge.pmd.rules.strings.ConsecutiveLiteralAppends

All Implemented Interfaces:

JavaParserVisitor, Rule

public class ConsecutiveLiteralAppends

extends AbstractRule

This rule finds concurrent calls to StringBuffer.append where String literals are used It would be much better to make these calls using one call to .append

example:

 StringBuffer buf = new StringBuffer();
 buf.append("Hello");
 buf.append(" ").append("World");
 

This would be more eloquently put as:

 StringBuffer buf = new StringBuffer();
 buf.append("Hello World");
 

The rule takes one parameter, threshold, which defines the lower limit of consecutive appends before a violation is created. The default is 1.

Field Summary

Fields inherited from class net.sourceforge.pmd.AbstractRule

description, example, externalInfoUrl, include, message, name, priority, properties, ruleSetName, usesDFA

Fields inherited from interface net.sourceforge.pmd.Rule

LOWEST_PRIORITY, PRIORITIES

Constructor Summary

ConsecutiveLiteralAppends()

Method Summary

java.lang.Object

visit(ASTVariableDeclaratorId node, java.lang.Object data)

Methods inherited from class net.sourceforge.pmd.AbstractRule

addProperties, addProperty, addViolation, addViolation, addViolation, addViolationWithMessage, apply, equals, getBooleanProperty, getDeclaringType, getDescription, getDoubleProperty, getExample, getExternalInfoUrl, getIntProperty, getMessage, getName, getPriority, getPriorityName, getProperties, getRuleSetName, getStringProperty, hashCode, hasProperty, include, setDescription, setExample, setExternalInfoUrl, setInclude, setMessage, setName, setPriority, setRuleSetName, setUsesDFA, usesDFA, visitAll

Methods inherited from class net.sourceforge.pmd.ast.JavaParserVisitorAdapter

visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConsecutiveLiteralAppends

public ConsecutiveLiteralAppends()

Method Detail

visit

public java.lang.Object visit(ASTVariableDeclaratorId node,
                              java.lang.Object data)

Specified by:

visit in interface JavaParserVisitor

Overrides:

visit in class JavaParserVisitorAdapter