    001// Copyright 2006, 2007, 2010 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.services;
    016
    017import org.apache.tapestry5.ioc.internal.util.InternalUtils;
    018import org.apache.tapestry5.services.PersistentFieldChange;
    019
    020public class PersistentFieldChangeImpl implements PersistentFieldChange
    021{
    022    private final String componentId;
    023
    024    private final String fieldName;
    025
    026    private final Object value;
    027
    028    public PersistentFieldChangeImpl(final String componentId, final String fieldName, final Object value)
    029    {
    030        assert componentId != null;
    031        assert InternalUtils.isNonBlank(fieldName);
    032
    033        this.componentId = componentId;
    034        this.fieldName = fieldName;
    035        this.value = value;
    036    }
    037
    038    public String getComponentId()
    039    {
    040        return componentId;
    041    }
    042
    043    public String getFieldName()
    044    {
    045        return fieldName;
    046    }
    047
    048    public Object getValue()
    049    {
    050        return value;
    051    }
    052}