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EmptyAttributeResolver - JBOSS Portal 2.6 API 英文版文档

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org.jboss.portal.common.invocation
Class EmptyAttributeResolver

java.lang.Object
  org.jboss.portal.common.invocation.EmptyAttributeResolver

All Implemented Interfaces:

AttributeResolver

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public class EmptyAttributeResolver

extends java.lang.Object

implements AttributeResolver

Version:

$Revision: 1.1 $

Author:

Julien Viet

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Field Summary
private static EmptyAttributeResolver	instance           .

 

Constructor Summary

EmptyAttributeResolver()

 

Method Summary
java.lang.Object	getAttribute(java.lang.Object attrKey)           Return an attribute from this resolver.
static EmptyAttributeResolver	getInstance()
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.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

instance

private static final EmptyAttributeResolver instance

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Constructor Detail

EmptyAttributeResolver

public EmptyAttributeResolver()

Method Detail

getInstance

public static EmptyAttributeResolver getInstance()

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getKeys

public java.util.Set getKeys()

Description copied from interface: AttributeResolver

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

Specified by:

getKeys in interface AttributeResolver

Returns:

a set of keys

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getAttribute

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

Description copied from interface: AttributeResolver

Return an attribute from this resolver.

Specified by:

getAttribute in interface AttributeResolver

Parameters:

attrKey -

Returns:

the attribute value or null if it is not found

Throws:

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

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setAttribute

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

Description copied from interface: AttributeResolver

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.

Specified by:

setAttribute in interface AttributeResolver

Parameters:

attrKey -

attrValue - the attribute value

Throws:

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

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