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MutableController (JBoss Seam API Documentation) - JBoss Seam 1.2.1 API 英文版文档

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org.jboss.seam.framework
Class MutableController<T>

java.lang.Object
  org.jboss.seam.framework.Controller
      org.jboss.seam.framework.PersistenceController<T>
          org.jboss.seam.framework.MutableController<T>

All Implemented Interfaces:

Serializable, Mutable

Direct Known Subclasses:

Home

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public abstract class MutableController<T>
extends PersistenceController<T>
implements Serializable, Mutable

Base class for controllers which implement the Mutable interface.

Author:

Gavin King

See Also:

Serialized Form

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Constructor Summary
MutableController()

 

Method Summary
boolean	clearDirty()           Get and clear the dirty flag.
protected  void	setDirty()           Set the dirty flag.
protected <U> boolean	setDirty(U oldValue, U newValue)           Set the dirty flag if the value has changed.

 

Methods inherited from class org.jboss.seam.framework.PersistenceController
getPersistenceContext, getPersistenceContextName, setPersistenceContext

 

Methods inherited from class org.jboss.seam.framework.Controller

addCookie, addFacesMessage, addFacesMessageFromResourceBundle, debug, debug, error, error, failValidation, fatal, fatal, getApplicationContext, getBusinessProcessContext, getComponentInstance, getComponentInstance, getConversation, getConversationContext, getCookie, getEventContext, getEvents, getFacesContext, getFacesMessages, getIdentity, getLog, getMessages, getMethodContext, getPageContext, getRedirect, getSessionContext, getValidator, info, info, interpolate, invalidateSession, isTransactionMarkedRollback, raiseAsynchronousEvent, raiseEvent, raiseTransactionSuccessEvent, render, sendHttpError, sendHttpError, trace, trace, validationFailed, validationSucceeded, warn, warn

 

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Constructor Detail

MutableController

public MutableController()

Method Detail

clearDirty

public boolean clearDirty()

Description copied from interface: Mutable

Get and clear the dirty flag.

Specified by:

clearDirty in interface Mutable

Returns:

true if the instance is dirty and requires replication

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setDirty

protected <U> boolean setDirty(U oldValue,
                               U newValue)

Set the dirty flag if the value has changed. Call whenever a subclass attribute is updated.

Parameters:

oldValue - the old value of an attribute

newValue - the new value of an attribute

Returns:

true if the newValue is not equal to the oldValue

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setDirty

protected void setDirty()

Set the dirty flag.

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