org.jboss.portal.common.invocation
Interface AttributeResolver

All Known Subinterfaces:

NavigationalStateContext

All Known Implementing Classes:

AbstractSessionAttributeResolver, EmptyAttributeResolver, MapAttributeResolver, PortalObjectNavigationalStateContext, PrincipalAttributeResolver, RequestAttributeResolver, SessionAttributeResolver

public interface AttributeResolver

An attribute resolver.

Version:

$Revision: 7228 $

Author:

Julien Viet

Method Summary

java.lang.Object	getAttribute(java.lang.Object attrKey) Return an attribute from this resolver.
java.util.Set	getKeys() Returns the set of keys of the attributes bound in that resolver.
void	setAttribute(java.lang.Object attrKey, java.lang.Object attrValue) Update an attribute value on this resolve.

Method Detail

getKeys

java.util.Set getKeys()

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

Returns:

a set of keys

getAttribute

java.lang.Object getAttribute(java.lang.Object attrKey)
                              throws java.lang.IllegalArgumentException

Return an attribute from this resolver.

Parameters:

attrKey -

Returns:

the attribute value or null if it is not found

Throws:

java.lang.IllegalArgumentException - if the attribute key is not valid

setAttribute

void setAttribute(java.lang.Object attrKey,
                  java.lang.Object attrValue)
                  throws java.lang.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:

java.lang.IllegalArgumentException - if the attribute key is not valid