/*

  * 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 org.seasar.teeda.core.el;

 import java.util.Arrays;

 import javax.faces.component.StateHolder;

 import javax.faces.context.FacesContext;

 import javax.faces.el.ValueBinding;

 import org.seasar.teeda.core.JsfConstants;

 import org.seasar.teeda.core.managedbean.ManagedBeanFactory;

 import org.seasar.teeda.core.util.DIContainerUtil;

 /**

  * 

  * @author shot

  *

  */

 public abstract class ValueBindingBase extends ValueBinding implements

         StateHolder {

     static {

         Arrays.sort(JsfConstants.JSF_IMPLICIT_OBJECTS);

     };

     protected abstract void setValueInScope(FacesContext context, String name,

             Object newValue);

     public abstract Object getExpression();

     protected final ManagedBeanFactory getManagedBeanFactory() {

         return (ManagedBeanFactory) DIContainerUtil

                 .getComponent(ManagedBeanFactory.class);

     }

     public static boolean isImplicitObject(String expressionString) {

         return (Arrays.binarySearch(JsfConstants.JSF_IMPLICIT_OBJECTS,

                 expressionString) >= 0);

     }

 }