001    /*
002     * Copyright 2011 The Kuali Foundation.
003     * 
004     * Licensed under the Educational Community License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     * 
008     * http://www.opensource.org/licenses/ecl2.php
009     * 
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.kuali.kfs.gl.service.impl;
017    
018    import org.kuali.kfs.gl.ObjectHelper;
019    
020    /**
021     * Provides helper methods related to evaluating Strings 
022     */
023    public class StringHelper extends ObjectHelper {
024    
025        /**
026         * This method returns true if String object is empty and NOT null 
027         * 
028         * @param s evaluated String
029         * @return true if String object is empty and NOT null
030         */
031        static public boolean isEmpty(String s) {
032            return (s != null) && "".equals(s);
033        }
034    
035        /**
036         * This method returns true if String object is null or empty
037         * @param s evaluated String
038         * @return true if String object is null or empty
039         */
040        static public boolean isNullOrEmpty(String s) {
041            return (s == null) || isEmpty(s);
042        }
043    }