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

# Class ResourceComparator

java.lang.Object
org.apache.tools.ant.ProjectComponent
org.apache.tools.ant.types.DataType
org.apache.tools.ant.types.resources.comparators.ResourceComparator

All Implemented Interfaces:
  `Cloneable`, `Comparator<Resource>`

Direct Known Subclasses:
  `Content`, `Date`, `DelegatedResourceComparator`, `Exists`, `FileSystem`, `Name`, `Reverse`, `Size`, `Type`

public abstract class ResourceComparator extends DataType implements Comparator<Resource>
Abstract Resource Comparator.

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
Description
`ResourceComparator()`

## Method Summary

Modifier and Type
Method
Description
`final int`
`compare(Resource foo, Resource bar)`
Compare two objects.
`boolean`
`equals(Object o)`
Test for equality with this ResourceComparator.
`int`
`hashCode()`
Hashcode based on the rules for equality.
`protected abstract int`
`resourceCompare(Resource foo, Resource bar)`
Compare two Resources.

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

`checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, dieOnCircularReference, dieOnCircularReference, dieOnCircularReference, getCheckedRef, 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

`reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong`

## Constructor Details

### ResourceComparator

public ResourceComparator()

## Method Details

### compare

public final int compare(Resource foo, Resource bar)
Compare two objects.

Specified by:
  `compare` in interface `Comparator<Resource>`
Parameters:
  `foo` - the first Object.
  `bar` - the second Object.
Returns:
  a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.
Throws:
  `ClassCastException` - if either argument is null.

### equals

public boolean equals(Object o)
Test for equality with this ResourceComparator.

Specified by:
  `equals` in interface `Comparator<Resource>`
Overrides:
  `equals` in class `Object`
Parameters:
  `o` - the Object to compare against.
Returns:
  true if the specified Object equals this one.

### hashCode

public int hashCode()
Hashcode based on the rules for equality.

Overrides:
  `hashCode` in class `Object`
Returns:
  a hashcode.

### resourceCompare

protected abstract int resourceCompare(Resource foo, Resource bar)
Compare two Resources.

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.