/*
* 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;
import java.util.ArrayList;
import javax.faces.component.StateHolder;
import javax.faces.component.UIComponentBase;
import javax.faces.context.FacesContext;
import com.google.common.collect.Lists;
/**
* @author Nick Belaevski
*
*/
public class StateHolderArray implements StateHolder {
private boolean tranzient = false;
private ArrayList<Object> backingList = Lists.newArrayListWithCapacity(2);
public Object saveState(FacesContext context) {
Object[] savedState = new Object[backingList.size()];
boolean hasNonNullState = false;
for (int i = 0; i < savedState.length; i++) {
Object state = UIComponentBase.saveAttachedState(context, backingList.get(i));
savedState[i] = state;
if (state != null) {
hasNonNullState = true;
}
}
if (hasNonNullState) {
return savedState;
} else {
return null;
}
}
public void restoreState(FacesContext context, Object stateObject) {
if (stateObject != null) {
Object[] state = (Object[]) stateObject;
backingList.ensureCapacity(state.length);
for (int i = 0; i < state.length; i++) {
backingList.add(UIComponentBase.restoreAttachedState(context, state[i]));
}
}
}
public boolean isTransient() {
return tranzient;
}
public void setTransient(boolean newTransientValue) {
this.tranzient = newTransientValue;
}
public boolean add(Object e) {
return backingList.add(e);
}
public Object get(int index) {
return backingList.get(index);
}
public boolean isEmpty() {
return backingList.isEmpty();
}
}