/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* Licensed 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.
*/
package org.seasar.framework.container.impl;
import java.util.Map;
import org.seasar.framework.container.S2Container;
/**
* ソースがコンポーネント名を表す{@link org.seasar.framework.container.Expression}の実装クラスです。
*
* @author koichik
*/
public class ComponentNameExpression extends AbstractExpression {
/**
* <code>ComponentNameExpression</code>のインスタンスを構築します。
*
* @param source
* 式のソース
*/
public ComponentNameExpression(final String source) {
super(source);
}
/**
* <code>ComponentNameExpression</code>のインスタンスを構築します。
*
* @param sourceName
* ソースファイル名
* @param lineNumber
* ソースファイル中の行番号
* @param source
* 式のソース
*/
public ComponentNameExpression(final String sourceName,
final int lineNumber, final String source) {
super(sourceName, lineNumber, source);
}
public Object evaluate(final S2Container container, final Map context) {
Object result = container.getComponent(source);
if (result == null && context != null) {
result = context.get(source);
}
return result;
}
}