org.apache.axis.utils
Class LockableHashtable

java.lang.Object
  extended byjava.util.Dictionary
      extended byjava.util.Hashtable
          extended byorg.apache.axis.utils.LockableHashtable
All Implemented Interfaces:
java.lang.Cloneable, java.util.Map, java.io.Serializable

public class LockableHashtable
extends java.util.Hashtable

This subclass of the java Hashtable allows individual entries to be "locked" so that their values cannot be overwritten or removed. Note, only the put() and remove() methods have been overridden. The clear() method still removes all entries whether they've been locked or not.

See Also:
Serialized Form

Constructor Summary
LockableHashtable()
           
LockableHashtable(int p1)
           
LockableHashtable(int p1, float p2)
           
LockableHashtable(java.util.Map p1)
           
 
Method Summary
 java.lang.Object get(java.lang.Object key)
          Get an entry from this hashtable, and if we don't find anything, defer to our parent, if any.
 java.util.Set getAllKeys()
          Returns the keys in this hashtable, and its parent chain
 java.util.Hashtable getParent()
          Gets the parent Hashtable for this object (if any)
 boolean isKeyLocked(java.lang.Object key)
          Returns true if a given key is in our locked list
 java.lang.Object put(java.lang.Object p1, java.lang.Object p2)
          Overrides the Hashtable.put() method to mark items as not being locked.
 java.lang.Object put(java.lang.Object p1, java.lang.Object p2, boolean locked)
          New version of the put() method that allows for explicitly marking items added to the hashtable as locked.
 java.lang.Object remove(java.lang.Object p1)
          Checks to see if an item is locked before it is removed.
 void setParent(java.util.Hashtable parent)
          Set the parent Hashtable for this object
 
Methods inherited from class java.util.Hashtable
clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, hashCode, isEmpty, keys, keySet, putAll, size, toString, values
 
Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

LockableHashtable

public LockableHashtable()

LockableHashtable

public LockableHashtable(int p1,
                         float p2)

LockableHashtable

public LockableHashtable(java.util.Map p1)

LockableHashtable

public LockableHashtable(int p1)
Method Detail

setParent

public void setParent(java.util.Hashtable parent)
Set the parent Hashtable for this object


getParent

public java.util.Hashtable getParent()
Gets the parent Hashtable for this object (if any)


getAllKeys

public java.util.Set getAllKeys()
Returns the keys in this hashtable, and its parent chain


get

public java.lang.Object get(java.lang.Object key)
Get an entry from this hashtable, and if we don't find anything, defer to our parent, if any.


put

public java.lang.Object put(java.lang.Object p1,
                            java.lang.Object p2,
                            boolean locked)
New version of the put() method that allows for explicitly marking items added to the hashtable as locked.


put

public java.lang.Object put(java.lang.Object p1,
                            java.lang.Object p2)
Overrides the Hashtable.put() method to mark items as not being locked.


remove

public java.lang.Object remove(java.lang.Object p1)
Checks to see if an item is locked before it is removed.


isKeyLocked

public boolean isKeyLocked(java.lang.Object key)
Returns true if a given key is in our locked list



Copyright 2003 Apache Web Services Project. A ll Rights Reserved.