/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.richfaces.component;
import java.io.Serializable;
import javax.faces.component.StateHolder;
import javax.faces.context.FacesContext;
import org.ajax4jsf.model.DataComponentState;
import org.ajax4jsf.model.ExtendedDataModel;
public final class DataAdaptorIterationState implements StateHolder {
private DataComponentState componentState;
private Object savedComponentState;
private boolean componentStateIsStateHolder;
private ExtendedDataModel<?> dataModel;
public DataAdaptorIterationState() {
super();
}
public DataAdaptorIterationState(DataComponentState componentState, ExtendedDataModel<?> dataModel) {
super();
this.componentState = componentState;
this.dataModel = dataModel;
}
public ExtendedDataModel<?> getDataModel() {
return dataModel;
}
public DataComponentState getComponentState() {
return componentState;
}
/**
* @param uiDataAdaptor
*/
public void restoreComponentState(UIDataAdaptor uiDataAdaptor) {
if (savedComponentState != null && componentStateIsStateHolder) {
componentState = uiDataAdaptor.createComponentState();
((StateHolder) componentState).restoreState(FacesContext.getCurrentInstance(), savedComponentState);
savedComponentState = null;
}
}
public void setTransient(boolean newTransientValue) {
throw new UnsupportedOperationException();
}
public boolean isTransient() {
if (componentState instanceof StateHolder) {
return ((StateHolder) componentState).isTransient();
}
if (componentState instanceof Serializable) {
return false;
}
return true;
}
public Object saveState(FacesContext context) {
if (isTransient()) {
return null;
}
boolean localComponentStateIsHolder = false;
Object localSavedComponentState = null;
if (componentState instanceof StateHolder) {
localComponentStateIsHolder = true;
StateHolder stateHolder = (StateHolder) componentState;
localSavedComponentState = stateHolder.saveState(context);
} else if (componentState instanceof Serializable) {
localSavedComponentState = componentState;
}
return new Object[] { localComponentStateIsHolder ? Boolean.TRUE : Boolean.FALSE, localSavedComponentState };
}
public void restoreState(FacesContext context, Object stateObject) {
if (stateObject != null) {
Object[] state = (Object[]) stateObject;
componentStateIsStateHolder = Boolean.TRUE.equals(state[0]);
Object localSavedComponentState = state[1];
if (componentStateIsStateHolder) {
savedComponentState = localSavedComponentState;
} else {
componentState = (DataComponentState) localSavedComponentState;
}
}
}
}