1 files changed, 68 insertions, 0 deletions
diff --git a/winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/backend/IRepository.java b/winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/backend/IRepository.java
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+++ b/winery/org.eclipse.winery.repository/src/main/java/org/eclipse/winery/repository/backend/IRepository.java
@@ -0,0 +1,68 @@
+/*******************************************************************************
+ * Copyright (c) 2012-2013 University of Stuttgart.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * and the Apache License 2.0 which both accompany this distribution,
+ * and are available at http://www.eclipse.org/legal/epl-v10.html
+ * and http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Contributors:
+ *     Oliver Kopp - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.winery.repository.backend;
+
+import java.util.Date;
+
+import org.apache.commons.configuration.Configuration;
+import org.eclipse.winery.common.RepositoryFileReference;
+import org.eclipse.winery.common.ids.GenericId;
+
+/**
+ * Provides interface to the backend.
+ * 
+ * Currently a file-based backend is implemented. In the future, a git-based or
+ * a database-based backend is possible.
+ * 
+ * The properties are managed by org.apache.commons.configuration. In case a new
+ * backend is added, the appropriate implementation of
+ * org.apache.commons.configuration.AbstrctConfiguration has to be chosen.
+ * 
+ */
+public interface IRepository extends IGenericRepository {
+	
+	/**
+	 * Returns the configuration of the specified id
+	 * 
+	 * If the associated TOSCA element does not exist, an empty configuration is
+	 * returned. That means, the associated TOSCA element is created (SIDE
+	 * EFFECT)
+	 * 
+	 * The returned configuration ensures that autoSave is activated
+	 * 
+	 * @param id may be a reference to a TOSCAcomponent or to a nested
+	 *            TOSCAelement
+	 * @return a Configuration, where isAutoSave == true
+	 */
+	Configuration getConfiguration(GenericId id);
+	
+	/**
+	 * Enables resources to define additional properties. Currently used for
+	 * tags.
+	 * 
+	 * Currently, more a quick hack. A generic TagsManager should be introduced
+	 * to enable auto completion of tag names
+	 * 
+	 * If the associated TOSCA element does not exist, an empty configuration is
+	 * returned. That means, the associated TOSCA element is created (SIDE
+	 * EFFECT)
+	 */
+	Configuration getConfiguration(RepositoryFileReference ref);
+	
+	/**
+	 * 
+	 * @return the last change date of the configuration belonging to the given
+	 *         id. NULL if the associated TOSCA element does not exist.
+	 */
+	Date getConfigurationLastUpdate(GenericId id);
+	
+}