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

Class BooleanInstantiationRule

java.lang.Object

net.sourceforge.pmd.properties.AbstractPropertySource

net.sourceforge.pmd.lang.rule.AbstractRule

net.sourceforge.pmd.lang.java.rule.AbstractJavaRule

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

All Implemented Interfaces:

JavaParserVisitor, ImmutableLanguage, PropertySource, Rule

public class BooleanInstantiationRule
extends AbstractJavaRule

Avoid instantiating Boolean objects; you can reference Boolean.TRUE, Boolean.FALSE, or call Boolean.valueOf() instead.

  public class Foo {
       Boolean bar = new Boolean("true");    // just do a Boolean
       bar = Boolean.TRUE;                   //ok
       Boolean buz = Boolean.valueOf(false); // just do a Boolean buz = Boolean.FALSE;
  }
 

Field Summary

Fields inherited from class net.sourceforge.pmd.properties.AbstractPropertySource

propertyDescriptors, propertyValuesByDescriptor

Fields inherited from interface net.sourceforge.pmd.Rule

VIOLATION_SUPPRESS_REGEX_DESCRIPTOR, VIOLATION_SUPPRESS_XPATH_DESCRIPTOR

Constructor Summary

Constructors

Constructor and Description
BooleanInstantiationRule()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	visit(ASTAllocationExpression node, java.lang.Object data)
java.lang.Object	visit(ASTCompilationUnit decl, java.lang.Object data)
java.lang.Object	visit(ASTImportDeclaration decl, java.lang.Object data)
java.lang.Object	visit(ASTPrimaryPrefix node, java.lang.Object data)

Methods inherited from class net.sourceforge.pmd.lang.java.rule.AbstractJavaRule

apply, getDeclaringType, importsPackage, isQualifiedName, isSuppressed, 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, visit, visit, visitAll

Methods inherited from class net.sourceforge.pmd.lang.rule.AbstractRule

addExample, addRuleChainVisit, addRuleChainVisit, addViolation, addViolation, addViolation, addViolationWithMessage, addViolationWithMessage, addViolationWithMessage, deepCopy, deepCopyValuesTo, end, equals, getDescription, getExamples, getExternalInfoUrl, getLanguage, getMaximumLanguageVersion, getMessage, getMinimumLanguageVersion, getName, getParserOptions, getPriority, getRuleChainVisits, getRuleClass, getRuleSetName, getSince, hashCode, isDeprecated, isDfa, isMultifile, isRuleChain, isTypeResolution, setDeprecated, setDescription, setDfa, setExternalInfoUrl, setLanguage, setMaximumLanguageVersion, setMessage, setMinimumLanguageVersion, setMultifile, setName, setPriority, setRuleClass, setRuleSetName, setSince, setTypeResolution, setUsesDFA, setUsesMultifile, setUsesTypeResolution, start, usesDFA, usesMultifile, usesRuleChain, usesTypeResolution

Methods inherited from class net.sourceforge.pmd.properties.AbstractPropertySource

copyPropertyDescriptors, copyPropertyValues, definePropertyDescriptor, dysfunctionReason, getPropertiesByPropertyDescriptor, getProperty, getPropertyDescriptor, getPropertyDescriptors, hasDescriptor, ignoredProperties, setProperty, setProperty, useDefaultValueFor, usesDefaultValues

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sourceforge.pmd.properties.PropertySource

definePropertyDescriptor, dysfunctionReason, getPropertiesByPropertyDescriptor, getProperty, getPropertyDescriptor, getPropertyDescriptors, hasDescriptor, ignoredProperties, setProperty, setProperty, useDefaultValueFor, usesDefaultValues

Constructor Detail

BooleanInstantiationRule

public BooleanInstantiationRule()

Method Detail

visit

public java.lang.Object visit(ASTCompilationUnit decl,
                              java.lang.Object data)

Specified by:

visit in interface JavaParserVisitor

Overrides:

visit in class AbstractJavaRule

visit

public java.lang.Object visit(ASTImportDeclaration decl,
                              java.lang.Object data)

Specified by:

visit in interface JavaParserVisitor

Overrides:

visit in class AbstractJavaRule

visit

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

Specified by:

visit in interface JavaParserVisitor

Overrides:

visit in class AbstractJavaRule

visit

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

Specified by:

visit in interface JavaParserVisitor

Overrides:

visit in class AbstractJavaRule