1 files changed, 70 insertions, 0 deletions
diff --git a/infra/data-api/src/main/java/io/fd/honeycomb/data/DataModification.java b/infra/data-api/src/main/java/io/fd/honeycomb/data/DataModification.java
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index 000000000..6e903a4e2
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+++ b/infra/data-api/src/main/java/io/fd/honeycomb/data/DataModification.java
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * 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 io.fd.honeycomb.data;
+
+import com.google.common.annotations.Beta;
+import io.fd.honeycomb.translate.TranslationException;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
+
+/**
+ * Modification of a {@link ModifiableDataManager}.
+ */
+@Beta
+public interface DataModification extends ReadableDataManager {
+
+    /**
+     * Delete the node at specified path.
+     *
+     * @param path Node path
+     */
+    void delete(YangInstanceIdentifier path);
+
+    /**
+     * Merge the specified data with the currently-present data
+     * at specified path.
+     *
+     * @param path Node path
+     * @param data Data to be merged
+     */
+    void merge(YangInstanceIdentifier path, NormalizedNode<?, ?> data);
+
+    /**
+     * Replace the data at specified path with supplied data.
+     *
+     * @param path Node path
+     * @param data New node data
+     */
+    void write(YangInstanceIdentifier path, NormalizedNode<?, ?> data);
+
+    /**
+     * Alters data tree using this modification.
+     *
+     * @throws DataValidationFailedException if modification data is not valid
+     * @throws TranslationException if failed while updating data tree state
+     */
+    void commit() throws DataValidationFailedException, TranslationException;
+
+    /**
+     * Validate and prepare modification before commit. Besides commit, no further operation is expected after validate
+     * and the behaviour is undefined.
+     *
+     * @throws DataValidationFailedException if modification data is not valid
+     */
+    void validate() throws DataValidationFailedException;
+}