oracle.cabo.ui.collection
Class ContextMapProxy

java.lang.Object
  |
  +--oracle.cabo.ui.collection.ContextMapProxy

All Implemented Interfaces:

ContextMap

Direct Known Subclasses:

FixedDelegatingContextMap

public abstract class ContextMapProxy

extends java.lang.Object

implements ContextMap

ContextMap that proxies to either one other ContextMap, or separate ContextMaps for gets and sets. Subclassers that need to delegate both sets and gets to one AttribtueMap should override getContextMap, while those that need to delegate to separate accessor and mutator ContextMaps should override both getAccessorContextMap and getMutatorContextMap.

Constructor Summary

ContextMapProxy()

Method Summary

java.lang.Object	get(RenderingContext context, java.lang.Object key) Returns the Object stored under the key, returning null if no Object with that key exists.
protected ContextMap	getAccessorContextMap(RenderingContext context)
protected ContextMap	getContextMap(RenderingContext context)
protected ContextMap	getMutatorContextMap()
java.util.Enumeration	keys(RenderingContext context) Returns an Enumeration of all of the keys in the ContextMap given the specified context.
void	set(java.lang.Object key, java.lang.Object value) Stores the value in the map, under the key.

Methods inherited from class java.lang.Object

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

Constructor Detail

ContextMapProxy

public ContextMapProxy()

Method Detail

getContextMap

protected ContextMap getContextMap(RenderingContext context)

getAccessorContextMap

protected ContextMap getAccessorContextMap(RenderingContext context)

getMutatorContextMap

protected ContextMap getMutatorContextMap()

get

public java.lang.Object get(RenderingContext context,
                            java.lang.Object key)

Description copied from interface: ContextMap

Returns the Object stored under the key, returning null if no Object with that key exists.

Specified by:

get in interface ContextMap

Following copied from interface: oracle.cabo.ui.collection.ContextMap

Parameters:

context - RenderingContext to use to fulfill this request

key - key used to retrieve the value

Returns:

The value stored under this key, or null if no value is found.

Throws:

java.lang.IllegalArgumentException - if the key is null

set

public void set(java.lang.Object key,
                java.lang.Object value)

Description copied from interface: ContextMap

Stores the value in the map, under the key.

As the RenderingContext is not passed to this function, sets do not have the same databinding capabilities that gets do.

Specified by:

set in interface ContextMap

Following copied from interface: oracle.cabo.ui.collection.ContextMap

Parameters:

key - key used to set the value

value - The new value to set

Throws:

java.lang.IllegalArgumentException - if either the key or value is null.

keys

public java.util.Enumeration keys(RenderingContext context)

Description copied from interface: ContextMap

Returns an Enumeration of all of the keys in the ContextMap given the specified context.

The entire contents of the ContextMap can be retrieved by calling ContextMap.get for each of the keys in the enumeration.

Specified by:

keys in interface ContextMap

Following copied from interface: oracle.cabo.ui.collection.ContextMap

Parameters:

RenderingContext - context Context used to determine the set of keys.

Returns:

The Enumeration of keys in the RenderingContext