org.apache.tools.ant.types.resources.comparators

Class Exists

java.lang.Object

org.apache.tools.ant.ProjectComponent

org.apache.tools.ant.types.DataType

org.apache.tools.ant.types.resources.comparators.ResourceComparator

org.apache.tools.ant.types.resources.comparators.Exists

All Implemented Interfaces:

java.lang.Cloneable, java.util.Comparator<Resource>

public class Exists
extends ResourceComparator

Compares Resources by existence. Not existing is "less than" existing.

Since:

Ant 1.7

Field Summary

Fields inherited from class org.apache.tools.ant.types.DataType

checked, ref

Fields inherited from class org.apache.tools.ant.ProjectComponent

description, location, project

Constructor Summary

Constructors

Constructor and Description
Exists()

Method Summary

Modifier and Type	Method and Description
protected int	resourceCompare(Resource foo, Resource bar) Compare two Resources.

Methods inherited from class org.apache.tools.ant.types.resources.comparators.ResourceComparator

compare, equals, hashCode

Methods inherited from class org.apache.tools.ant.types.DataType

checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, getCheckedRef, getCheckedRef, getCheckedRef, getDataTypeName, getRefid, invokeCircularReferenceCheck, isChecked, isReference, noChildrenAllowed, pushAndInvokeCircularReferenceCheck, setChecked, setRefid, tooManyAttributes, toString

Methods inherited from class org.apache.tools.ant.ProjectComponent

getDescription, getLocation, getProject, log, log, setDescription, setLocation, setProject

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

Exists

public Exists()

Method Detail

resourceCompare

protected int resourceCompare(Resource foo,
                              Resource bar)

Compare two Resources.

Specified by:

resourceCompare in class ResourceComparator

Parameters:

foo - the first Resource.

bar - the second Resource.

Returns:

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.