| /* |
| * 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 java.io.IOException; |
| |
| import javax.servlet.jsp.JspException; |
| import javax.servlet.jsp.JspTagException; |
| import javax.servlet.jsp.JspWriter; |
| import javax.servlet.jsp.tagext.TagSupport; |
| |
| /** |
| * Accept and display a value. |
| */ |
| public class ValuesTag extends TagSupport { |
| |
| private static final long serialVersionUID = 1L; |
| |
| // Using "-1" as the default value, |
| // in the assumption that it won't be used as the value. |
| // Cannot use null here, because null is an important case |
| // that should be present in the tests. |
| private Object objectValue = "-1"; |
| private String stringValue = "-1"; |
| private long longValue = -1; |
| private double doubleValue = -1; |
| |
| public void setObject(Object objectValue) { |
| this.objectValue = objectValue; |
| } |
| |
| public void setString(String stringValue) { |
| this.stringValue = stringValue; |
| } |
| |
| public void setLong(long longValue) { |
| this.longValue = longValue; |
| } |
| |
| public void setDouble(double doubleValue) { |
| this.doubleValue = doubleValue; |
| } |
| |
| @Override |
| public int doEndTag() throws JspException { |
| JspWriter out = pageContext.getOut(); |
| |
| try { |
| if (!"-1".equals(objectValue)) { |
| out.print(objectValue); |
| } else if (!"-1".equals(stringValue)) { |
| out.print(stringValue); |
| } else if (longValue != -1) { |
| out.print(longValue); |
| } else if (doubleValue != -1) { |
| out.print(doubleValue); |
| } else { |
| out.print("-1"); |
| } |
| } catch (IOException ex) { |
| throw new JspTagException("IOException: " + ex.toString(), ex); |
| } |
| return super.doEndTag(); |
| } |
| } |