webmetadataloaderfactory.java

《j2ee开发全程实录》随书源码

package com.cownew.PIS.framework.web.helper;

import com.cownew.PIS.framework.common.metaDataMgr.IMetaDataLoader;
import com.cownew.PIS.framework.common.metaDataMgr.MetaDataLoader;

public class WebMetaDataLoaderFactory
{
	private static MetaDataLoader loader;

	public static IMetaDataLoader getLoader()
	{
		if (loader != null)
		{
			return loader;
		}

		WebConfig config = WebConfig.getInstance();
		String entityCacheFile = config.getEntityCacheFile();
		String metaDataPath = config.getMetaDataPath();
		loader = new MetaDataLoader(metaDataPath, entityCacheFile);
		loader.setCacheEnable(config.isMetaCacheEnabled());
		return loader;
	}

}