Return the JSF parent Naming Container of the component passed as argument. - Java JSF

Java examples for JSF:UIComponent

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Description

Return the JSF parent Naming Container of the component passed as argument.

Demo Code

/*//from  w w  w  .j ava 2 s  .c o m
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */
import javax.faces.component.NamingContainer;
import javax.faces.component.UIComponent;

public class Main{
    /**
     * Return the parent NamingContainer of the component passed as argument.
     * 
     * @param component
     * @return
     */
    public static UIComponent findParentNamingContainer(
            UIComponent component) {
        return findParentNamingContainer(component, true);
    }
    /**
     * Return the parent NamingContainer of the component passed as argument.
     * 
     * @param component
     * @param returnRootIfNotFound
     * @return
     */
    public static UIComponent findParentNamingContainer(
            UIComponent component, boolean returnRootIfNotFound) {
        UIComponent parent = component.getParent();
        if (returnRootIfNotFound && parent == null) {
            return component;
        }
        while (parent != null) {
            if (parent instanceof NamingContainer) {
                return parent;
            }

            if (returnRootIfNotFound) {
                UIComponent nextParent = parent.getParent();
                if (nextParent == null) {
                    return parent; // Root
                }
                parent = nextParent;
            } else {
                parent = parent.getParent();
            }
        }
        return null;
    }
}

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