org.apache.axis.utils

Class LockableHashtable

public class LockableHashtable extends 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.

Author: James Snell (jasnell@us.ibm.com)

Constructor Summary
LockableHashtable()
LockableHashtable(int p1, float p2)
LockableHashtable(Map p1)
LockableHashtable(int p1)
Method Summary
Objectget(Object key)
Get an entry from this hashtable, and if we don't find anything, defer to our parent, if any.
SetgetAllKeys()
Returns the keys in this hashtable, and its parent chain
HashtablegetParent()
Gets the parent Hashtable for this object (if any)
booleanisKeyLocked(Object key)
Returns true if a given key is in our locked list
Objectput(Object p1, Object p2, boolean locked)
New version of the put() method that allows for explicitly marking items added to the hashtable as locked.
Objectput(Object p1, Object p2)
Overrides the Hashtable.put() method to mark items as not being locked.
Objectremove(Object p1)
Checks to see if an item is locked before it is removed.
voidsetParent(Hashtable parent)
Set the parent Hashtable for this object

Constructor Detail

LockableHashtable

public LockableHashtable()

LockableHashtable

public LockableHashtable(int p1, float p2)

LockableHashtable

public LockableHashtable(Map p1)

LockableHashtable

public LockableHashtable(int p1)

Method Detail

get

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

getAllKeys

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

getParent

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

isKeyLocked

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

put

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

put

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

remove

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

setParent

public void setParent(Hashtable parent)
Set the parent Hashtable for this object
Copyright B) 2005 Apache Web Services Project. All Rights Reserved.