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

# Class DelegatedResourceComparator

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.DelegatedResourceComparator

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

public class DelegatedResourceComparator extends ResourceComparator
Delegates to other ResourceComparators or, if none specified, uses Resources' natural ordering.

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
`DelegatedResourceComparator()`

## Method Summary

Modifier and Type
Method
Description
`void`
`add(ResourceComparator c)`
Add a delegate ResourceComparator.
`protected void`
`dieOnCircularReference(Stack<Object> stk, Project p)`
Overrides the version from DataType to recurse on nested ResourceSelector s.
`boolean`
`equals(Object o)`
Equality method based on the vector of resources, or if a reference, the referred to object.
`int`
`hashCode()`
Hashcode based on the rules for equality.
`protected int`
`resourceCompare(Resource foo, Resource bar)`
Compare two Resources.

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

`compare`

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

`checkAttributesAllowed, checkChildrenAllowed, circularReference, clone, 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

### DelegatedResourceComparator

public DelegatedResourceComparator()

## Method Details

### add

public void add(ResourceComparator c)
Add a delegate ResourceComparator.

Parameters:
  `c` - the next delegate ResourceComparator.

### equals

public boolean equals(Object o)
Equality method based on the vector of resources, or if a reference, the referred to object.

Specified by:
  `equals` in interface `Comparator<Resource>`
Overrides:
  `equals` in class `ResourceComparator`
Parameters:
  `o` - the object to check against.
Returns:
  true if there is equality.

### hashCode

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

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

### 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.

### dieOnCircularReference

protected void dieOnCircularReference(Stack<Object> stk, Project p) throws BuildException
Overrides the version from DataType to recurse on nested ResourceSelector s.

Overrides:
  `dieOnCircularReference` in class `DataType`
Parameters:
  `stk` - the Stack of references.
  `p` - the Project to resolve against.
Throws:
  `BuildException` - on error.