Package rename org.wamblee.system to org.wamblee.system.core

[utils] / system / general / src / main / java / org / wamblee / system / core / RequiredInterface.java

diff --git a/system/general/src/main/java/org/wamblee/system/core/RequiredInterface.java b/system/general/src/main/java/org/wamblee/system/core/RequiredInterface.java
new file mode 100644 (file)
index 0000000..0fea736
--- /dev/null
+++ b/system/general/src/main/java/org/wamblee/system/core/RequiredInterface.java
@@ -0,0 +1,51 @@
+/*
+ * Copyright 2007 the original author or authors.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */ 
+package org.wamblee.system.core;
+
+public interface RequiredInterface {
+
+       /**
+        * Name for the interface. 
+        */
+       public String getName(); 
+       
+       /**
+        * Checks if the service is provided by a given provided interface. 
+        * @param aInterface Provided interface. 
+        * @return
+        */
+       boolean implementedBy(ProvidedInterface aInterface);
+       
+       /**
+        * Sets the provider of this interface. 
+        * @param aProvider Provider. 
+        */
+       void setProvider(ProvidedInterface aProvider);
+       
+       /**
+        * Getst the provider interface. 
+        * @return Provider or null if not set. 
+        */
+       ProvidedInterface getProvider(); 
+       
+       /**
+        * Gets the implementation of the required interface. 
+        * @param <T>
+        * @param aClass Interface type. 
+        * @return Interface implementation or null if not known yet. 
+        */
+       <T> T getImplementation(Class<T> aClass); 
+}