biz.hammurapi.util
Class ConvertingCollection

java.lang.Object
  biz.hammurapi.util.ConvertingCollection

All Implemented Interfaces:

java.lang.Iterable, java.util.Collection

public class ConvertingCollection
extends java.lang.Object
implements java.util.Collection

Collection that contains elements of one type but appears as containing elements of another type. Conversion is done by a Converter. Usage - keep collection of 'keys' and retrieve 'values' from secondary storage on demand.

Version:

$Revision: 1.3 $

Author:

Pavel Vlasov

Constructor Summary

ConvertingCollection(java.util.Collection master, ConverterClosure key2ValueConverter, ConverterClosure value2KeyConverter)

Method Summary

boolean	add(java.lang.Object o)
boolean	addAll(java.util.Collection c)
void	clear()
boolean	contains(java.lang.Object o)
boolean	containsAll(java.util.Collection c)
boolean	isEmpty()
java.util.Iterator	iterator()
boolean	remove(java.lang.Object o)
boolean	removeAll(java.util.Collection c)
boolean	retainAll(java.util.Collection c)
int	size()
java.lang.Object[]	toArray()
java.lang.Object[]	toArray(java.lang.Object[] a)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Collection

equals, hashCode

Constructor Detail

ConvertingCollection

public ConvertingCollection(java.util.Collection master,
                            ConverterClosure key2ValueConverter,
                            ConverterClosure value2KeyConverter)

Parameters:

master -

key2ValueConverter -

value2KeyConverter -

Method Detail

size

public int size()

Specified by:

size in interface java.util.Collection

clear

public void clear()

Specified by:

clear in interface java.util.Collection

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection

toArray

public java.lang.Object[] toArray()

Specified by:

toArray in interface java.util.Collection

add

public boolean add(java.lang.Object o)

Specified by:

add in interface java.util.Collection

contains

public boolean contains(java.lang.Object o)

Specified by:

contains in interface java.util.Collection

remove

public boolean remove(java.lang.Object o)

Specified by:

remove in interface java.util.Collection

addAll

public boolean addAll(java.util.Collection c)

Specified by:

addAll in interface java.util.Collection

containsAll

public boolean containsAll(java.util.Collection c)

Specified by:

containsAll in interface java.util.Collection

removeAll

public boolean removeAll(java.util.Collection c)

Specified by:

removeAll in interface java.util.Collection

retainAll

public boolean retainAll(java.util.Collection c)

Specified by:

retainAll in interface java.util.Collection

iterator

public java.util.Iterator iterator()

Specified by:

iterator in interface java.lang.Iterable

Specified by:

iterator in interface java.util.Collection

toArray

public java.lang.Object[] toArray(java.lang.Object[] a)

Specified by:

toArray in interface java.util.Collection