org.paneris.util
Class ExtendedHash

java.lang.Object
  java.util.Dictionary<K,V>
      java.util.Hashtable
          org.paneris.util.ExtendedHash

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.Map

Direct Known Subclasses:

DDRecord

public class ExtendedHash
extends java.util.Hashtable

This class provides extended facilities to a hashtable paticularly, it will return keys and values in the order they were added, allowing it to be used as a vector.

See Also:

Serialized Form

Constructor Summary

ExtendedHash()
Normal constructor.

ExtendedHash(int initialCapacity)
constructor with capacity

ExtendedHash(int initialCapacity, float loadFactor)
constructor with capacity and loadfactor

ExtendedHash(java.util.Vector a, java.util.Vector b)
constructor - make a hashtable out of 2 vectors: a keys and b values

Method Summary

void	clear() zap this Extended hashtable
java.util.Enumeration	elements() return the elements as a vector in the order they were added
java.lang.String	joinKeys(java.lang.String deliminator) join the keys together with the specified deliminator
java.util.Enumeration	keys() return the keys as a vector in the order they were added
java.lang.Object	put(java.lang.Object key, java.lang.Object value) add an item to the ExtendedHash
java.lang.Object	remove(java.lang.Object key) remove an item from the ExtendedHash

Methods inherited from class java.util.Hashtable

clone, contains, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, putAll, rehash, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ExtendedHash

public ExtendedHash()

Normal constructor.

ExtendedHash

public ExtendedHash(int initialCapacity,
                    float loadFactor)

constructor with capacity and loadfactor

ExtendedHash

public ExtendedHash(int initialCapacity)

constructor with capacity

ExtendedHash

public ExtendedHash(java.util.Vector a,
                    java.util.Vector b)

constructor - make a hashtable out of 2 vectors: a keys and b values

Method Detail

clear

public void clear()

zap this Extended hashtable

Specified by:

clear in interface java.util.Map

Overrides:

clear in class java.util.Hashtable

elements

public java.util.Enumeration elements()

return the elements as a vector in the order they were added

Overrides:

elements in class java.util.Hashtable

keys

public java.util.Enumeration keys()

return the keys as a vector in the order they were added

Overrides:

keys in class java.util.Hashtable

put

public java.lang.Object put(java.lang.Object key,
                            java.lang.Object value)

add an item to the ExtendedHash

Specified by:

put in interface java.util.Map

Overrides:

put in class java.util.Hashtable

remove

public java.lang.Object remove(java.lang.Object key)

remove an item from the ExtendedHash

Specified by:

remove in interface java.util.Map

Overrides:

remove in class java.util.Hashtable

joinKeys

public java.lang.String joinKeys(java.lang.String deliminator)

join the keys together with the specified deliminator