Apache Tomcat 6.0.39

org.apache.catalina.util
Class ResourceSet

java.lang.Object
  extended by java.util.AbstractCollection<E>
      extended by java.util.AbstractSet<E>
          extended by java.util.HashSet
              extended by org.apache.catalina.util.ResourceSet
All Implemented Interfaces:
java.io.Serializable, java.lang.Cloneable, java.lang.Iterable, java.util.Collection, java.util.Set

public final class ResourceSet
extends java.util.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:
$Id: ResourceSet.java 939353 2010-04-29 15:50:43Z kkolinko $
Author:
Craig R. McClanahan
See Also:
Serialized Form

Constructor Summary
ResourceSet()
          Construct a new, empty set with the default initial capacity and load factor.
ResourceSet(java.util.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(java.lang.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(java.lang.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.
 
Methods inherited from class java.util.HashSet
clone, contains, isEmpty, iterator, size
 
Methods inherited from class java.util.AbstractSet
equals, hashCode, removeAll
 
Methods inherited from class java.util.AbstractCollection
addAll, containsAll, retainAll, toArray, toArray, toString
 
Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface java.util.Set
addAll, containsAll, equals, hashCode, removeAll, retainAll, toArray, toArray
 

Constructor Detail

ResourceSet

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


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

ResourceSet

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

Parameters:
coll - The collection whose contents we should copy
Method Detail

isLocked

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


setLocked

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

Parameters:
locked - The new locked state

add

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

Specified by:
add in interface java.util.Collection
Specified by:
add in interface java.util.Set
Overrides:
add in class java.util.HashSet
Parameters:
o - The object to be added
Throws:
java.lang.IllegalStateException - if this ResourceSet is locked

clear

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

Specified by:
clear in interface java.util.Collection
Specified by:
clear in interface java.util.Set
Overrides:
clear in class java.util.HashSet
Throws:
java.lang.IllegalStateException - if this ResourceSet is locked

remove

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

Specified by:
remove in interface java.util.Collection
Specified by:
remove in interface java.util.Set
Overrides:
remove in class java.util.HashSet
Parameters:
o - The object to be removed
Throws:
java.lang.IllegalStateException - if this ResourceSet is locked

Apache Tomcat 6.0.39

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