searchutil.java

来自「Jaoso新闻文章发布系统 0.9.1final 程序架构: Struts」· Java 代码 · 共 57 行

package jaoso.framework.core.search;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

/**
 * @author Quake Wang
 * @since 2004-5-25
 * @version $Revision: 1.1 $
 *  
 */
public class SearchUtil {
	/** DOCUMENT ME! */
	public static final String IDENTIFIER = "identifier";

	/**
	 * DOCUMENT ME!
	 * 
	 * @param entity
	 *            DOCUMENT ME!
	 * 
	 * @return DOCUMENT ME!
	 */
	public static String getIdentifier(Searchable entity) {
		return entity.getClass().getName() + "-" + entity.getId();
	}

	/**
	 * DOCUMENT ME!
	 * 
	 * @param identifiers
	 *            DOCUMENT ME!
	 * @param className
	 *            DOCUMENT ME!
	 * 
	 * @return DOCUMENT ME!
	 */
	public static List toIdList(Collection identifiers, String className) {
		if ((identifiers == null) || (identifiers.size() < 0)) {
			return null;
		}

		List result = new ArrayList();

		for (Iterator iter = identifiers.iterator(); iter.hasNext();) {
			String indentifier = (String) iter.next();

			if (indentifier.startsWith(className)) {
				result.add(indentifier.substring(className.length() + 1));
			}
		}

		return result;
	}
}