/*
* 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.beans.factory;
import java.util.Map;
import org.seasar.framework.beans.BeanDesc;
import org.seasar.framework.beans.impl.BeanDescImpl;
import org.seasar.framework.util.Disposable;
import org.seasar.framework.util.DisposableUtil;
import org.seasar.framework.util.MapUtil;
/**
* {@link BeanDesc}を生成するクラスです。
*
* @author higa
*
*/
public class BeanDescFactory {
private static volatile boolean initialized;
private static Map beanDescCache = MapUtil.createHashMap(1024);
static {
initialize();
}
/**
* インスタンスを構築します。
*/
protected BeanDescFactory() {
}
/**
* {@link BeanDesc}を返します。
*
* @param clazz
* @return {@link BeanDesc}
*/
public static BeanDesc getBeanDesc(Class clazz) {
if (!initialized) {
initialize();
}
BeanDesc beanDesc = (BeanDesc) beanDescCache.get(clazz);
if (beanDesc == null) {
beanDesc = new BeanDescImpl(clazz);
beanDescCache.put(clazz, beanDesc);
}
return beanDesc;
}
/**
* 初期化を行ないます。
*/
public static void initialize() {
DisposableUtil.add(new Disposable() {
public void dispose() {
clear();
}
});
initialized = true;
}
/**
* キャッシュをクリアします。
*/
public static void clear() {
beanDescCache.clear();
initialized = false;
}
}