Merged DEV\EXTENSIONS to HEAD

svn merge svn://svn.alfresco.com:3691/alfresco/BRANCHES/DEV/EXTENSIONS@4848 svn://svn.alfresco.com:3691/alfresco/BRANCHES/DEV/EXTENSIONS@4850 .

   Added RegistryService and registryService beans
   Create ConfigurableService and moved the configurableService bean to be a low-level (untransactioned) component


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@4955 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/repo/admin/registry/RegistryService.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2007 Alfresco, Inc.
+ *
+ * Licensed under the Mozilla Public License version 1.1 
+ * with a permitted attribution clause. You may obtain a
+ * copy of the License at
+ *
+ *   http://www.alfresco.org/legal/license.txt
+ *
+ * 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.alfresco.repo.admin.registry;
+
+import java.io.Serializable;
+
+/**
+ * Interface for service providing access to key-value pairs for storage
+ * of system-controlled metadata.
+ * 
+ * @author Derek Hulley
+ */
+public interface RegistryService
+{
+    /**
+     * Assign a value to the registry key, which must be of the form <b>/a/b/c</b>.
+     * 
+     * @param key           the registry key path delimited with '/'.
+     * @param value         any value that can be stored in the repository.
+     */
+    void addValue(String key, Serializable value);
+    
+    /**
+     * @param key           the registry key path delimited with '/'.
+     * @return              Returns the value stored in the key.
+     * 
+     * @see #addValue(String, Serializable)
+     */
+    Serializable getValue(String key);
+}