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/*
* 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.translate.write;
import com.google.common.annotations.Beta;
import io.fd.honeycomb.translate.SubtreeManager;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* Base writer, responsible for translation between DataObjects and any other side. Handling all update operations(create,
* update, delete)
*
* @param <D> Specific DataObject derived type, that is handled by this writer
*/
@Beta
public interface Writer<D extends DataObject> extends SubtreeManager<D> {
/**
* Handle update operation. U from CRUD.
*
* @param id Identifier of data being written
* @param dataBefore Old data
* @param dataAfter New, updated data
* @param ctx Write context enabling writer to get information about candidate data as well as current data
* @throws WriteFailedException if update failed
*/
void update(@Nonnull final InstanceIdentifier<? extends DataObject> id,
@Nullable final DataObject dataBefore,
@Nullable final DataObject dataAfter,
@Nonnull final WriteContext ctx) throws WriteFailedException;
}
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