1 files changed, 53 insertions, 0 deletions
diff --git a/catalog-be/src/main/java/org/openecomp/sdc/be/components/attribute/AttributeDeclarator.java b/catalog-be/src/main/java/org/openecomp/sdc/be/components/attribute/AttributeDeclarator.java
new file mode 100644
index 0000000000..3fa68fa00c
--- /dev/null
+++ b/catalog-be/src/main/java/org/openecomp/sdc/be/components/attribute/AttributeDeclarator.java
@@ -0,0 +1,53 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2021, Nordix Foundation. All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdc.be.components.attribute;
+
+import fj.data.Either;
+import java.util.List;
+import org.openecomp.sdc.be.model.Component;
+import org.openecomp.sdc.be.model.ComponentInstanceAttribOutput;
+import org.openecomp.sdc.be.model.OutputDefinition;
+import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
+
+public interface AttributeDeclarator {
+
+    /**
+     * creates a list of outputs from the given list of attributes and updates the attributes accordingly
+     *
+     * @param component         the container
+     * @param propertiesOwnerId the id of the owner of the attributes to declare (e.g ComponentInstance, Policy, Group
+     *                          etc)
+     * @param attribsToDeclare    the list of attributes that are being declared as outputs
+     * @return the list of outputs that were created from the given attributes
+     */
+    Either<List<OutputDefinition>, StorageOperationStatus> declareAttributesAsOutputs(final Component component,
+                                                                                      final String propertiesOwnerId,
+                                                                                      final List<ComponentInstanceAttribOutput> attribsToDeclare);
+
+    /**
+     * returns the values of declared attributes to each original state before it was declared as an input. this
+     * function is to be called when an input, that was created by declaring a property, is deleted.
+     *
+     * @param component the container of the input to be deleted
+     * @param output     the input to be deleted
+     */
+    StorageOperationStatus unDeclareAttributesAsOutputs(final Component component, final OutputDefinition output);
+}