| %line | %branch | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| org.apache.commons.jelly.tags.core.IfTag |
|
|
| 1 | /* |
|
| 2 | * Copyright 2002,2004 The Apache Software Foundation. |
|
| 3 | * |
|
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
|
| 5 | * you may not use this file except in compliance with the License. |
|
| 6 | * You may obtain a copy of the License at |
|
| 7 | * |
|
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
|
| 9 | * |
|
| 10 | * Unless required by applicable law or agreed to in writing, software |
|
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
|
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
| 13 | * See the License for the specific language governing permissions and |
|
| 14 | * limitations under the License. |
|
| 15 | */ |
|
| 16 | package org.apache.commons.jelly.tags.core; |
|
| 17 | ||
| 18 | import org.apache.commons.jelly.JellyTagException; |
|
| 19 | import org.apache.commons.jelly.MissingAttributeException; |
|
| 20 | import org.apache.commons.jelly.TagSupport; |
|
| 21 | import org.apache.commons.jelly.XMLOutput; |
|
| 22 | import org.apache.commons.jelly.expression.Expression; |
|
| 23 | ||
| 24 | /** A tag which conditionally evaluates its body based on some condition |
|
| 25 | * |
|
| 26 | * @author <a href="mailto:jstrachan@apache.org">James Strachan</a> |
|
| 27 | * @version $Revision: 155420 $ |
|
| 28 | */ |
|
| 29 | public class IfTag extends TagSupport { |
|
| 30 | ||
| 31 | /** The expression to evaluate. */ |
|
| 32 | private Expression test; |
|
| 33 | ||
| 34 | 2691 | public IfTag() { |
| 35 | 2691 | } |
| 36 | ||
| 37 | // Tag interface |
|
| 38 | //------------------------------------------------------------------------- |
|
| 39 | public void doTag(XMLOutput output) throws MissingAttributeException, JellyTagException { |
|
| 40 | 2990 | if (test != null) { |
| 41 | 2990 | if (test.evaluateAsBoolean(context)) { |
| 42 | 546 | invokeBody(output); |
| 43 | 377 | } |
| 44 | } |
|
| 45 | else { |
|
| 46 | 0 | throw new MissingAttributeException( "test" ); |
| 47 | } |
|
| 48 | ||
| 49 | 2821 | } |
| 50 | ||
| 51 | // Properties |
|
| 52 | //------------------------------------------------------------------------- |
|
| 53 | /** Sets the Jelly expression to evaluate. If this returns true, the body of |
|
| 54 | * the tag is evaluated |
|
| 55 | * |
|
| 56 | * @param test the Jelly expression to evaluate |
|
| 57 | */ |
|
| 58 | public void setTest(Expression test) { |
|
| 59 | 2990 | this.test = test; |
| 60 | 2990 | } |
| 61 | } |
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |