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git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@677346 13f79535-47bb-0310-9956-ffa450edef68
69 lines
2.6 KiB
HTML
69 lines
2.6 KiB
HTML
<!--
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<html>
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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<link rel="stylesheet" type="text/css" href="../stylesheets/style.css">
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<title>PropertyHelper Task</title>
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</head>
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<body>
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<h2>PropertyHelper</h2>
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<h3>Description</h3>
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<p>This task is provided for the purpose of allowing the user to
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<b>(a)</b> install a different PropertyHelper at runtime, or
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<b>(b)</b> (hopefully more often) install one or more PropertyHelper Delegates into the
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PropertyHelper active on the current Project. This is somewhat advanced Ant usage and
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assumes a working familiarity with the modern Ant APIs. See the description of Ant's
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<a href="../using.html#propertyhelper">Property Helper</a> for more information.
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<b>Since Ant 1.8</b></p>
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<h3>Parameters specified as nested elements</h3>
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<h4>PropertyHelper</h4>
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You may specify exactly one configured <code>org.apache.tools.ant.PropertyHelper</code> instance.
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<h4>PropertyHelper.Delegate</h4>
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You may specify, either in conjunction with a new <code>PropertyHelper</code> or not, one or
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more configured implementations of the <code>org.apache.tools.ant.PropertyHelper.Delegate</code>
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interface. A deeper understanding of the API is required here, however, as <code>Delegate</code>
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is a marker interface only: the nested arguments must implement a <code>Delegate</code>
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subinterface in order to do anything meaningful.
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<h4>delegate</h4>
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A generic <delegate> element is also provided:
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<h5>Parameters</h5>
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<table border="1" cellpadding="2" cellspacing="0">
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<tr>
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<td valign="top"><b>Attribute</b></td>
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<td valign="top"><b>Description</b></td>
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<td align="center" valign="top"><b>Required</b></td>
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</tr>
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<tr>
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<td valign="top">refid</td>
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<td valign="top">The <i>id</i> of a <code>PropertyHelper.Delegate</code> to install.</td>
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<td valign="top" align="center">Yes</td>
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</tr>
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</table>
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</body>
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</html>
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