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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<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span>package org.apache.felix.ipojo.annotations;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import java.lang.annotation.ElementType;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.lang.annotation.Target;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span><a name="line.23"></a> |
| <span class="sourceLineNo">024</span>/**<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * This annotation declares that the component instances will provide a service.<a name="line.25"></a> |
| <span class="sourceLineNo">026</span> *<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> * <pre><a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * {@linkplain org.apache.felix.ipojo.annotations.Component @Component}<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * {@code @Provides}<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * public class MyComponent implements Service {<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> * // ...<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> * }<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * </pre><a name="line.33"></a> |
| <span class="sourceLineNo">034</span> * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a><a name="line.34"></a> |
| <span class="sourceLineNo">035</span>*/<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>@Target({ElementType.TYPE, ElementType.ANNOTATION_TYPE})<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>public @interface Provides {<a name="line.37"></a> |
| <span class="sourceLineNo">038</span><a name="line.38"></a> |
| <span class="sourceLineNo">039</span> /**<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * Set the provided specifications.<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * It can be used to force the exposed service to use an implementation class<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * (not an interface) as specification.<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * Default : all implemented interfaces<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> *<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * <pre><a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * {@linkplain org.apache.felix.ipojo.annotations.Component @Component}<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * {@code @Provides(specifications = AbsComponent.class)}<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> * public class MyComponent extends AbsComponent {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * // ...<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * }<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> * </pre><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> */<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> Class[] specifications() default { };<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> /**<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * Set the service object creation strategy.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * Multiple values are possible: {@literal SINGLETON}, {@literal SERVICE},<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * {@literal METHOD}, {@literal INSTANCE} or the strategy fully qualified class name:<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * <ul><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * <li>{@literal SINGLETON}: Default strategy</li><a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * <li>{@literal SERVICE}: OSGi Service Factory style, 1 POJO instance per consumer bundle</li><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * <li>{@literal METHOD}: Delegates the creation to the factory-method of the component, method will be called every time the service reference is get.</li><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * <li>{@literal INSTANCE}: Creates one service object per requiring instance</li><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * <li>Any other value is interpreted as the qualified name of a {@code CreationStrategy} implementation</li><a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * </ul><a name="line.65"></a> |
| <span class="sourceLineNo">066</span> */<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> String strategy() default "SINGLETON";<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /**<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * Allows adding static properties to the service.<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * Nested properties are static service properties, so <b>must</b> contain the name,<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * value and type as they are not attached to a field (cannot discover type through<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * introspection).<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * The array contains {@link StaticServiceProperty} elements.<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * Default : No service properties<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * <pre><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * {@linkplain org.apache.felix.ipojo.annotations.Component @Component}<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * {@code @Provides}(<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * properties = {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * {@code @StaticServiceProperty}(name = "size", type = "int", value = "5"),<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * {@code @StaticServiceProperty}(name = "name", type = "java.lang.String", value = "OSGi")<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> * }<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> * )<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> * public class MyComponent implements Service {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * // ...<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> * }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> * </pre><a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> */<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> StaticServiceProperty[] properties() default {};<a name="line.91"></a> |
| <span class="sourceLineNo">092</span>}<a name="line.92"></a> |
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