    001    // Copyright 2009 The Apache Software Foundation
    002    //
    003    // Licensed under the Apache License, Version 2.0 (the "License");
    004    // you may not use this file except in compliance with the License.
    005    // You may obtain a copy of the License at
    006    //
    007    //     http://www.apache.org/licenses/LICENSE-2.0
    008    //
    009    // Unless required by applicable law or agreed to in writing, software
    010    // distributed under the License is distributed on an "AS IS" BASIS,
    011    // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    012    // See the License for the specific language governing permissions and
    013    // limitations under the License.
    014
    015    package org.apache.tapestry5.internal.pageload;
    016
    017    /**
    018     * Used to construct component names.
    019     */
    020    public class ComponentName
    021    {
    022        private final String pageName;
    023
    024        final String nestedId;
    025
    026        final String completeId;
    027
    028        ComponentName(String pageName)
    029        {
    030            this.pageName = pageName;
    031            this.nestedId = null;
    032            this.completeId = pageName;
    033        }
    034
    035        private ComponentName(String pageName, String nestedId, String completeId)
    036        {
    037            this.completeId = completeId;
    038            this.nestedId = nestedId;
    039            this.pageName = pageName;
    040        }
    041
    042        ComponentName child(String embeddedId)
    043        {
    044            String newNestedId = nestedId == null
    045                                 ? embeddedId
    046                                 : nestedId + "." + embeddedId;
    047
    048            return new ComponentName(pageName, newNestedId, pageName + ":" + newNestedId);
    049        }
    050    }