org.gatein.pc.api.invocation.resolver

Interface AttributeResolver<K,V>

All Known Implementing Classes:

AbstractSessionAttributeResolver, MapAttributeResolver, PrincipalAttributeResolver

public interface AttributeResolver<K,V>

An attribute resolver.

Version:

$Revision: 7228 $

Author:

Julien Viet

Method Summary

Methods

Modifier and Type	Method and Description
V	getAttribute(K attrKey) Return an attribute from this resolver.
Set<K>	getKeys() Returns the set of keys of the attributes bound in that resolver.
void	setAttribute(K attrKey, V attrValue) Update an attribute value on this resolve.

Method Detail

getKeys

Set<K> getKeys()

Returns the set of keys of the attributes bound in that resolver.

Returns:

a set of keys

getAttribute

V getAttribute(K attrKey)
               throws IllegalArgumentException

Return an attribute from this resolver.

Parameters:

attrKey -

Returns:

the attribute value or null if it is not found

Throws:

IllegalArgumentException - if the attribute key is not valid

setAttribute

void setAttribute(K attrKey,
                V attrValue)
                  throws IllegalArgumentException

Update an attribute value on this resolve. If the attribute value is null the resolver must treat the operation as a removal of the attribute.

Parameters:

attrKey -

attrValue - the attribute value

Throws:

IllegalArgumentException - if the attribute key is not valid