| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 examples; |
| |
| import javax.servlet.jsp.*; |
| import javax.servlet.jsp.tagext.*; |
| import java.util.Hashtable; |
| import java.io.Writer; |
| import java.io.IOException; |
| |
| /** |
| * Example1: the simplest tag |
| * Collect attributes and call into some actions |
| * |
| * <foo att1="..." att2="...." att3="...." /> |
| */ |
| |
| public class FooTag |
| extends ExampleTagBase |
| { |
| private String atts[] = new String[3]; |
| int i = 0; |
| |
| private final void setAtt(int index, String value) { |
| atts[index] = value; |
| } |
| |
| public void setAtt1(String value) { |
| setAtt(0, value); |
| } |
| |
| public void setAtt2(String value) { |
| setAtt(1, value); |
| } |
| |
| public void setAtt3(String value) { |
| setAtt(2, value); |
| } |
| |
| /** |
| * Process start tag |
| * |
| * @return EVAL_BODY_INCLUDE |
| */ |
| public int doStartTag() throws JspException { |
| i = 0; |
| return EVAL_BODY_TAG; |
| } |
| |
| public void doInitBody() throws JspException { |
| pageContext.setAttribute("member", atts[i]); |
| i++; |
| } |
| |
| public int doAfterBody() throws JspException { |
| try { |
| if (i == 3) { |
| bodyOut.writeOut(bodyOut.getEnclosingWriter()); |
| return SKIP_BODY; |
| } else |
| pageContext.setAttribute("member", atts[i]); |
| i++; |
| return EVAL_BODY_TAG; |
| } catch (IOException ex) { |
| throw new JspTagException(ex.toString()); |
| } |
| } |
| } |
| |