org.jboss.portal.common.invocation
Class Invocation

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

Direct Known Subclasses:

Command, ControllerCommand, PortletInvocation, ServerInvocation

public abstract class Invocation
extends java.lang.Object

A generic invocation object.

Version:

$Revision: 5597 $

Author:

Julien Viet

Field Summary

static InterceptorStack

EMPTY_STACK .

Constructor Summary

Invocation()

Method Summary

java.lang.Object	getAttribute(Scope attrScope, java.lang.Object attrKey)
abstract InvocationContext	getContext() Return the invocation context or throw IllegalStateException.
InvocationHandler	getHandler()
java.lang.Object	invoke(InterceptorStack newStack) Execute the invocation through the chain of interceptors.
java.lang.Object	invokeNext() Invoke the next interceptor in the chain.
void	removeAttribute(Scope attrScope, java.lang.Object attrKey)
void	setAttribute(Scope attrScope, java.lang.Object attrKey, java.lang.Object attrValue)
void	setHandler(InvocationHandler handler)

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_STACK

public static final InterceptorStack EMPTY_STACK

.

Constructor Detail

Invocation

public Invocation()

Method Detail

getContext

public abstract InvocationContext getContext()
                                      throws java.lang.IllegalStateException

Return the invocation context or throw IllegalStateException.

Returns:

the invocation context

Throws:

java.lang.IllegalStateException - if no context is associated with this invocation

getAttribute

public java.lang.Object getAttribute(Scope attrScope,
                                     java.lang.Object attrKey)
                              throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

See Also:

InvocationContext.getAttribute(Scope,Object)

setAttribute

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

Throws:

java.lang.IllegalArgumentException

See Also:

InvocationContext.setAttribute(Scope,Object,Object)

removeAttribute

public void removeAttribute(Scope attrScope,
                            java.lang.Object attrKey)
                     throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

See Also:

InvocationContext.removeAttribute(Scope,Object)

getHandler

public InvocationHandler getHandler()

setHandler

public void setHandler(InvocationHandler handler)

invokeNext

public java.lang.Object invokeNext()
                            throws java.lang.Exception,
                                   InvocationException

Invoke the next interceptor in the chain. If the end of the chain is reached then the dispatch() is invoked.

Throws:

java.lang.Exception

InvocationException

invoke

public java.lang.Object invoke(InterceptorStack newStack)
                        throws java.lang.Exception,
                               InvocationException

Execute the invocation through the chain of interceptors.

Throws:

java.lang.Exception

InvocationException