001    /*
002    * Copyright 2004 The Apache Software Foundation
003    *
004    * Licensed under the Apache 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.apache.org/licenses/LICENSE-2.0
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    
017    
018    package jsp2.examples.simpletag;
019    
020    import javax.servlet.jsp.JspException;
021    import javax.servlet.jsp.tagext.SimpleTagSupport;
022    import java.util.HashMap;
023    import java.io.IOException;
024    
025    /**
026     * SimpleTag handler that accepts a num attribute and 
027     * invokes its body 'num' times.
028     */
029    public class RepeatSimpleTag extends SimpleTagSupport {
030        private int num;
031    
032        public void doTag() throws JspException, IOException {
033            for (int i=0; i<num; i++) {
034                getJspContext().setAttribute("count", String.valueOf( i + 1 ) );
035                getJspBody().invoke(null);
036            }
037        }
038    
039        public void setNum(int num) {
040            this.num = num;
041        }
042    }