/*

  * Copyright 2004-2011 the Seasar Foundation and the Others.

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *     http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,

  * either express or implied. See the License for the specific language

  * governing permissions and limitations under the License.

  */

 package javax.faces.internal;

 import java.util.Iterator;

 import java.util.LinkedList;

 import java.util.List;

 import javax.faces.component.StateHolder;

 import javax.faces.component.UIComponent;

 import javax.faces.component.UIComponentBase;

 import javax.faces.context.FacesContext;

 import javax.faces.validator.Validator;

 import javax.faces.validator.ValidatorException;

 /**

  * @author Satoshi Kimura

  * @author shot

  * @author manhole

  */

 public class ValidatorChain implements Validator, StateHolder {

     //TODO testing

     private boolean transientValue = false;

     private List validators = new LinkedList();

     public int getValidatorSize() {

         return validators.size();

     }

     public Validator getValidator(int index) {

         return (Validator) validators.get(index);

     }

     public void add(Validator validator) {

         validators.add(validator);

     }

     public void validate(FacesContext context, UIComponent component,

             Object value) throws ValidatorException {

         for (Iterator iterator = validators.iterator(); iterator.hasNext();) {

             Validator validator = (Validator) iterator.next();

             validator.validate(context, component, value);

         }

     }

     public Object saveState(FacesContext context) {

         return UIComponentBase.saveAttachedState(context, validators);

     }

     public void restoreState(FacesContext context, Object state) {

         validators = (List) UIComponentBase

                 .restoreAttachedState(context, state);

     }

     public boolean isTransient() {

         return transientValue;

     }

     public void setTransient(boolean transientValue) {

         this.transientValue = transientValue;

     }

 }