org.apache.catalina.util

Class ResourceSet


public final class ResourceSet
extends HashSet

Extended implementation of HashSet that includes a locked property. This class can be used to safely expose resource path sets to user classes without having to clone them in order to avoid modifications. When first created, a ResourceMap is not locked.

Version:
$Revision: 1.3 $ $Date: 2004/02/27 14:58:50 $

Author:
Craig R. McClanahan

Constructor Summary

ResourceSet()
Construct a new, empty set with the default initial capacity and load factor.
ResourceSet(Collection coll)
Construct a new set with the same contents as the existing collection.
ResourceSet(int initialCapacity)
Construct a new, empty set with the specified initial capacity and default load factor.
ResourceSet(int initialCapacity, float loadFactor)
Construct a new, empty set with the specified initial capacity and load factor.

Method Summary

boolean
add(Object o)
Add the specified element to this set if it is not already present.
void
clear()
Remove all of the elements from this set.
boolean
isLocked()
Return the locked state of this parameter map.
boolean
remove(Object o)
Remove the given element from this set if it is present.
void
setLocked(boolean locked)
Set the locked state of this parameter map.

Constructor Details

ResourceSet

public ResourceSet()
Construct a new, empty set with the default initial capacity and load factor.


ResourceSet

public ResourceSet(Collection coll)
Construct a new set with the same contents as the existing collection.

Parameters:
coll - The collection whose contents we should copy


ResourceSet

public ResourceSet(int initialCapacity)
Construct a new, empty set with the specified initial capacity and default load factor.

Parameters:
initialCapacity - The initial capacity of this set


ResourceSet

public ResourceSet(int initialCapacity,
                   float loadFactor)
Construct a new, empty set with the specified initial capacity and load factor.

Parameters:
initialCapacity - The initial capacity of this set
loadFactor - The load factor of this set

Method Details

add

public boolean add(Object o)
Add the specified element to this set if it is not already present. Return true if the element was added.

Parameters:
o - The object to be added


clear

public void clear()
Remove all of the elements from this set.


isLocked

public boolean isLocked()
Return the locked state of this parameter map.


remove

public boolean remove(Object o)
Remove the given element from this set if it is present. Return true if the element was removed.

Parameters:
o - The object to be removed


setLocked

public void setLocked(boolean locked)
Set the locked state of this parameter map.

Parameters:
locked - The new locked state


Copyright B) 2000-2003 Apache Software Foundation. All Rights Reserved.