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- <title>AntCall Task</title>
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- <body>
-
- <h2><a name="antcall">AntCall</a></h2>
- <h3>Description</h3>
- <p>Call another target within the same build-file optionally specifying some
- properties (param's in this context)</p>
- <p>By default, all of the properties of the current project will be
- available in the new project. Alternatively, you can
- set the <i>inheritAll</i> attribute to <code>false</code> and only
- "user" properties (i.e., those passed on the command-line)
- will be passed to the new project. In either case, the set of
- properties passed to the new project will override the properties that
- are set in the new project (See also the <a href="property.html">property task</a>).</p>
- <p>You can also set properties in the new project from the old project by
- using nested param tags. These properties are always passed regardless of the
- setting of <i>inheritAll</i>. This allows you to parameterize your subprojects.</p>
-
- <p>Nested <a href="#reference"><i><reference></i></a> elements can
- be used to copy references from the calling project to the new
- project, optionally under a different id. References taken from
- nested elements will override existing references in the new
- project.</p>
-
- <p>
- When a target is invoked by antcall, all of its dependent targets will
- also be called within the context of any new parameters. For example. if
- the target "doSomethingElse" depended on the target "init", then the
- <i>antcall</i> of "doSomethingElse" will call "init" during the call.
- Of course, any properties defined in the antcall task or inherited from the calling target
- will be fixed and not overridable in the init task -or indeed in the "doSomethingElse" task.
- </p>
- <h3>Parameters</h3>
- <table border="1" cellpadding="2" cellspacing="0">
- <tr>
- <td valign="top"><b>Attribute</b></td>
- <td valign="top"><b>Description</b></td>
- <td align="center" valign="top"><b>Required</b></td>
- </tr>
- <tr>
- <td valign="top">target</td>
- <td valign="top">The target to execute.</td>
- <td valign="top" align="center">Yes</td>
- </tr>
- <tr>
- <td valign="top">inheritAll</td>
- <td valign="top">If <code>true</code>, pass all properties to the new Ant
- project. Defaults to <code>true</code>.
- </td>
- <td align="center" valign="top">No</td>
- </tr>
- <tr>
- <td valign="top">inheritRefs</td>
- <td valign="top">If <code>true</code>, pass all references to the
- new Ant project. Defaults to <code>false</code>.</td>
- <td align="center" valign="top">No</td>
- </tr>
- </table>
-
- <h3>Note on <code>inheritRefs</code></h3>
-
- <p><code><antcall></code> will not override existing references,
- even if you set <code>inheritRefs</code> to true. As the called build
- files is the same build file as the calling one, this means it will
- not override any reference set via an <code>id</code> attribute at
- all. The only references that can be inherited by the child project
- are those defined by nested <code><reference></code> elements or
- references defined by tasks directly (not using the <code>id</code>
- attribute).</p>
-
- <h3>Parameters specified as nested elements</h3>
- <h4>param</h4>
- <p>Specifies the properties to set before running the specified target. See <a
- href="property.html">property</a> for usage guidelines.</p>
-
- <h4><a name="reference">reference</a></h4>
- <p>Used to chose references that shall be copied into the new project,
- optionally changing their id.</p>
-
- <table border="1" cellpadding="2" cellspacing="0">
- <tr>
- <td valign="top"><b>Attribute</b></td>
- <td valign="top"><b>Description</b></td>
- <td align="center" valign="top"><b>Required</b></td>
- </tr>
- <tr>
- <td valign="top">refid</td>
- <td valign="top">The id of the reference in the calling project.</td>
- <td valign="top" align="center">Yes</td>
- </tr>
- <tr>
- <td valign="top">torefid</td>
- <td valign="top">The id of the reference in the new project.</td>
- <td valign="top" align="center">No, defaults to the value of refid.</td>
- </tr>
- </table>
-
- <h4>propertyset</h4>
-
- <p>You can specify a set of properties to be copied into the new
- project with <a
- href="../CoreTypes/propertyset.html">propertyset</a>s.</p>
-
- <p><em>since Ant 1.6</em>.</p>
-
- <h3>Examples</h3>
- <pre>
- <target name="default">
- <antcall target="doSomethingElse">
- <param name="param1" value="value"/>
- </antcall>
- </target>
-
- <target name="doSomethingElse">
- <echo message="param1=${param1}"/>
- </target>
- </pre>
- <p>Will run the target 'doSomethingElse' and echo 'param1=value'.</p>
-
- <pre>
- <antcall ... >
- <reference refid="path1" torefid="path2"/>
- </antcall>
- </pre>
-
- <p>will copy the parent's definition of <code>path1</code> into the
- new project using the id <code>path2</code>.</p>
-
- <hr><p align="center">Copyright © 2000-2003 Apache Software Foundation. All rights
- Reserved.</p>
-
- </body>
- </html>
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