com.liferay.faces.demos.spring.ViewScope.java Source code

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Here is the source code for com.liferay.faces.demos.spring.ViewScope.java

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/**
 * Copyright (c) 2000-2014 Liferay, Inc. All rights reserved.
 *
 * This library 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 library 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.
 */
package com.liferay.faces.demos.spring;

import java.util.Map;

import javax.faces.bean.ViewScoped;
import javax.faces.context.FacesContext;

import org.springframework.beans.factory.ObjectFactory;
import org.springframework.beans.factory.config.Scope;

/**
 * This class serves as a custom Spring scope that decorates the map of view-scoped managed-beans behind the JSF2 {@link
 * ViewScoped} annotation.
 *
 * @author  Neil Griffin
 */
public class ViewScope implements Scope {

    public Object get(String name, ObjectFactory<?> objectFactory) {

        FacesContext facesContext = FacesContext.getCurrentInstance();
        Map<String, Object> viewMap = facesContext.getViewRoot().getViewMap();
        Object viewScopedBean = viewMap.get(name);

        if (viewScopedBean == null) {
            viewScopedBean = objectFactory.getObject();
            viewMap.put(name, viewScopedBean);
        }

        return viewScopedBean;
    }

    public void registerDestructionCallback(String name, Runnable callback) {
        // Unsupported feature
    }

    public Object remove(String name) {

        FacesContext facesContext = FacesContext.getCurrentInstance();
        Map<String, Object> viewMap = facesContext.getViewRoot().getViewMap();

        return viewMap.remove(name);
    }

    public Object resolveContextualObject(String key) {

        // Unsupported feature
        return null;
    }

    public String getConversationId() {

        // Unsupported feature
        return null;
    }

}