1 files changed, 44 insertions, 0 deletions
diff --git a/v3po/data-api/src/main/java/io/fd/honeycomb/v3po/data/ModifiableDataTree.java b/v3po/data-api/src/main/java/io/fd/honeycomb/v3po/data/ModifiableDataTree.java
new file mode 100644
index 000000000..8b21ddf24
--- /dev/null
+++ b/v3po/data-api/src/main/java/io/fd/honeycomb/v3po/data/ModifiableDataTree.java
@@ -0,0 +1,44 @@
+/*
+ * 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.v3po.data;
+
+import com.google.common.annotations.Beta;
+import io.fd.honeycomb.v3po.translate.TranslationException;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
+
+/**
+ * Facade over data tree that allows tree modification.
+ */
+@Beta
+public interface ModifiableDataTree {
+    /**
+     * Alters data tree using supplied modification.
+     *
+     * @param modification data tree modification
+     * @throws DataValidationFailedException if modification data is not valid
+     * @throws TranslationException if failed while updating data tree state
+     */
+    void modify(final DataTreeModification modification) throws DataValidationFailedException, TranslationException;
+
+    /**
+     * Creates read-only snapshot of a ModifiableDataTree.
+     *
+     * @return Data tree snapshot.
+     */
+    DataTreeSnapshot takeSnapshot();
+}