| <!-- |
| 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. |
| --> |
| <html> |
| |
| <head> |
| <meta http-equiv="Content-Language" content="en-us"> |
| <link rel="stylesheet" type="text/css" href="../stylesheets/style.css"> |
| <title>Componentdef Task</title> |
| </head> |
| |
| <body> |
| |
| <h2><a name="componentdef">componentdef</a></h2> |
| <h3>Description</h3> |
| <p> |
| Adds a component definition to the current project. |
| A component definition is the same as a |
| <a href="typedef.html">typedef</a> except: |
| </p> |
| <ol> |
| <li> |
| that it can only be used in other types or tasks that |
| accept components (by having an <i>add()</i> method). |
| </li> |
| <li> |
| multiple components may have the same name, provided they |
| implement different interfaces. |
| </li> |
| </ol> |
| <p> |
| The purpose of this is to allow internal Apache Ant definitions to be |
| made for tags like "and" or "or". |
| </p> |
| |
| <h3>Examples</h3> |
| |
| <pre> <componentdef name="or" onerror="ignore" |
| classname="com.apache.tools.ant.taskdefs.conditions.Or"/> |
| <componentdef name="or" onerror="ignore" |
| classname="com.apache.tools.ant.types.resources.selectors.Or"/></pre> |
| <p> |
| defines two components with the same name "or"; one is a condition |
| (see <a href="conditions.html">conditions</a>) and one is |
| a selector (see <a href="../Types/selectors.html">selectors</a>). |
| </p> |
| </body> |
| </html> |
| |
