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

java.lang.Object
  extended by org.apache.tools.ant.ProjectComponent
      extended by org.apache.tools.ant.types.DataType
          extended by org.apache.tools.ant.types.resources.comparators.ResourceComparator
              extended by org.apache.tools.ant.types.resources.comparators.Exists
All Implemented Interfaces:
java.lang.Cloneable, java.util.Comparator

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
Exists()
           
 
Method Summary
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, 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
 

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.