1 files changed, 22 insertions, 0 deletions
diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/components/merge/instance/ComponentsMergeCommand.java b/catalog-be/src/main/java/org/openecomp/sdc/be/components/merge/instance/ComponentsMergeCommand.java
new file mode 100644
index 0000000000..5dcb1dda79
--- /dev/null
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/components/merge/instance/ComponentsMergeCommand.java
@@ -0,0 +1,22 @@
+package org.openecomp.sdc.be.components.merge.instance;
+
+import org.openecomp.sdc.be.dao.api.ActionStatus;
+import org.openecomp.sdc.be.model.Component;
+
+public interface ComponentsMergeCommand {
+
+    /**
+     * encapsulates the logic of merging component inner entities from the previous component into the currently updated component
+     * @param prevComponent the old component, whose entities need to be merged
+     * @param currentComponent the new component, whose entities need to be merged
+     * @return the status of the merge process
+     */
+    ActionStatus mergeComponents(Component prevComponent, Component currentComponent);
+
+    /**
+     *
+     * @return short description of the command for logging purposes
+     */
+    String description();
+
+}