atg.search.query.formhandlers
Class HashMapMap

java.lang.Object
  java.util.AbstractMap<K,V>
      java.util.HashMap
          atg.search.query.formhandlers.HashMapMap

All Implemented Interfaces:

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

public class HashMapMap
extends java.util.HashMap

An implementation of a HashMap which by default returns another HashMapMap for any key that has not already been set to some value. This makes it very easy to create nested maps from JSP.

See Also:

Serialized Form

Field Summary

static java.lang.String

CLASS_VERSION

Constructor Summary

HashMapMap()
Create a instance of this class

Method Summary

void	accept(HashMapMapVisitor pVisitor) Accept a visitor to this root node.
protected void	accept(java.lang.Object pKey, HashMapMapVisitor pVisitor) Accept visitors, recursively.
void	acceptChildren(HashMapMapVisitor pVisitor) Invoke accept( Object, HashMapMapVisitor ) on all value elements which are HashMapMap instances.
java.lang.Object	get(java.lang.Object pKey) Get the value associated with the specified key.
HashMapMap	getParent() Get the parent HashMapMap or null if there is no parent
java.lang.Object	put(java.lang.Object pKey, java.lang.Object pValue) Associate an object with specified key, return previously associated object.
java.lang.Object	remove(java.lang.Object pKey) Remove value associated with specified key, return that value or null if no current value exists.
void	setParent(HashMapMap pParentMap) Set the parent map
java.lang.String	toString() Don't display as "{}" when empty so empty input fields on the page are actually empty.

Methods inherited from class java.util.HashMap

clear, clone, containsKey, containsValue, entrySet, isEmpty, keySet, putAll, size, values

Methods inherited from class java.util.AbstractMap

equals, hashCode

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

equals, hashCode

Field Detail

CLASS_VERSION

public static java.lang.String CLASS_VERSION

Constructor Detail

HashMapMap

public HashMapMap()

Create a instance of this class

Method Detail

getParent

public HashMapMap getParent()

Get the parent HashMapMap or null if there is no parent

Returns:

parent HashMapMap or null

setParent

public void setParent(HashMapMap pParentMap)

Set the parent map

Parameters:

pParentMap - the parent HashMapMap or null

get

public java.lang.Object get(java.lang.Object pKey)

Get the value associated with the specified key. If there is no current value, create and save a new HashMapMap associated with this key.

Specified by:

get in interface java.util.Map

Overrides:

get in class java.util.HashMap

Parameters:

pKey - the key

Returns:

value associated with key, possibly creating new HashMapMap for the value

put

public java.lang.Object put(java.lang.Object pKey,
                            java.lang.Object pValue)

Associate an object with specified key, return previously associated object.

Specified by:

put in interface java.util.Map

Overrides:

put in class java.util.HashMap

Parameters:

pKey - the key

pValue - the value

Returns:

the previously associateed value or null

remove

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

Remove value associated with specified key, return that value or null if no current value exists. If previous value was a HashMapMap, set it's parent to null before returning.

Specified by:

remove in interface java.util.Map

Overrides:

remove in class java.util.HashMap

Parameters:

pKey - the key

Returns:

the value previously associated with specified key

toString

public java.lang.String toString()

Don't display as "{}" when empty so empty input fields on the page are actually empty.

Overrides:

toString in class java.util.AbstractMap

Returns:

a string representation

accept

public void accept(HashMapMapVisitor pVisitor)

Accept a visitor to this root node. This method simply calls accept( Object, HashMapMapVisitor ).

Parameters:

pVisitor - the visitor

acceptChildren

public void acceptChildren(HashMapMapVisitor pVisitor)

Invoke accept( Object, HashMapMapVisitor ) on all value elements which are HashMapMap instances.

Parameters:

pVisitor - the visitor

accept

protected void accept(java.lang.Object pKey,
                      HashMapMapVisitor pVisitor)

Accept visitors, recursively.

Parameters:

pKey - the element key

pVisitor - the visitor