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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * this work for additional information regarding copyright ownership.<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * The ASF licenses this file to You under the Apache license, Version 2.0<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * the License. You may obtain a copy of the License at<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> *<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * See the license for the specific language governing permissions and<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * limitations under the license.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> */<a name="line.16"></a> |
| <span class="sourceLineNo">017</span><a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.logging.log4j.core.util;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>/**<a name="line.20"></a> |
| <span class="sourceLineNo">021</span> * A type of builder that can be used to configure and create a instances using a Java DSL instead of<a name="line.21"></a> |
| <span class="sourceLineNo">022</span> * through a configuration file. These builders are primarily useful for internal code and unit tests, but they can<a name="line.22"></a> |
| <span class="sourceLineNo">023</span> * technically be used as a verbose alternative to configuration files.<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> *<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * <p><a name="line.25"></a> |
| <span class="sourceLineNo">026</span> * When creating <em>plugin</em> builders, it is customary to create the builder class as a public static inner class<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> * called {@code Builder}. For instance, the builder class for<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * {@link org.apache.logging.log4j.core.layout.PatternLayout PatternLayout} would be<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * {@code PatternLayout.Builder}.<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * </p><a name="line.30"></a> |
| <span class="sourceLineNo">031</span> *<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * @param <T> This builder creates instances of this class.<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> */<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>public interface Builder<T> {<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> /**<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * Builds the object after all configuration has been set. This will use default values for any<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * unspecified attributes for the object.<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> *<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * @return the configured instance.<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * @throws org.apache.logging.log4j.core.config.ConfigurationException if there was an error building the<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * object.<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> */<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> T build();<a name="line.44"></a> |
| <span class="sourceLineNo">045</span>}<a name="line.45"></a> |
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