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| <h1 class="page">Dependency Manager - Factory Configuration Adapter Service</h1> |
| <div class="paragraph"> |
| <p>A factory configuration adapter service creates an adapter for each matching configuration in Configuration Admin. |
| For each new factory configuration matching the factoryPid, an adapter will be created based on the adapter implementation class. |
| The adapter will be registered with the specified interface and with the specified adapter service properties. |
| Depending on the propagate parameter, every public factory configuration properties (which don’t start with ".") will be propagated along with the adapter service properties. |
| It will also inherit all dependencies.</p> |
| </div> |
| <div class="paragraph"> |
| <p>To define an adapter component, you need to create an <a href="http://felix.apache.org/apidocs/dependencymanager/r13/org/apache/felix/dm/FactoryComponent.html">FactoryComponent</a> component using the DependencyActivatorBase.createFactoryComponent() or the DependencyManager.createFactoryComponent() method. |
| The FactoryComponent interface extends the Component interface in order to add extra setters methods needed to define a factory configuration adapter service component.</p> |
| </div> |
| <div class="paragraph"> |
| <p>Example usage:</p> |
| </div> |
| <div class="paragraph"> |
| <p>Here is a sample showing a "MyComponent" component, which can be instantiated multiple times using a factory configuration:</p> |
| </div> |
| <div class="listingblock"> |
| <div class="content"> |
| <pre class="highlightjs highlight"><code class="language-java hljs" data-lang="java">public interface MyConfig { |
| int getPort(); |
| String getAddress(); |
| } |
| |
| public class MyComponent implements MyService { |
| void updated(MyConfig cnf) { |
| int port = cnf.getPort(); |
| String addr = cnf.getAddress(); |
| ... |
| } |
| } |
| |
| public class Activator extends DependencyActivatorBase { |
| &Override |
| public void init(BundleContext context, DependencyManager dm) throws Exception { |
| Component factoryComponent = createFactoryComponent() |
| .setFactoryPid("my.factory.pid") |
| .setInterface(MySevice.class.getName(), null) |
| .setImplementation(MyComponent.class) |
| .setConfigType(MyConfig.class); |
| dm.add(factoryComponent); |
| } |
| }</code></pre> |
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