1 files changed, 42 insertions, 0 deletions
diff --git a/v3po/vpp-facade-spi/src/main/java/io/fd/honeycomb/v3po/vpp/facade/spi/write/ChildVppWriterCustomizer.java b/v3po/vpp-facade-spi/src/main/java/io/fd/honeycomb/v3po/vpp/facade/spi/write/ChildVppWriterCustomizer.java
new file mode 100644
index 000000000..7b7e257a2
--- /dev/null
+++ b/v3po/vpp-facade-spi/src/main/java/io/fd/honeycomb/v3po/vpp/facade/spi/write/ChildVppWriterCustomizer.java
@@ -0,0 +1,42 @@
+/*
+ * 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.vpp.facade.spi.write;
+
+import com.google.common.annotations.Beta;
+import com.google.common.base.Optional;
+import javax.annotation.Nonnull;
+import org.opendaylight.yangtools.yang.binding.DataObject;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+
+/**
+ * CompositeChildVppWriter SPI to customize its behavior
+ *
+ * @param <D> Specific DataObject derived type (Identifiable), that is handled by this customizer
+ */
+@Beta
+public interface ChildVppWriterCustomizer<D extends DataObject> extends RootVppWriterCustomizer<D> {
+
+    /**
+     * Get child of parentData identified by currentId
+     *
+     * @param currentId Identifier(from root) of data being extracted
+     * @param parentData Parent data object from which managed data object must be extracted
+     */
+    @Nonnull
+    Optional<D> extract(@Nonnull final InstanceIdentifier<D> currentId, @Nonnull final DataObject parentData);
+
+}