    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
    015package org.apache.tapestry5.internal.pageload;
    016
    017/**
    018 * Used to construct component names.
    019 */
    020public 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}