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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.v3po.translate.read;
import com.google.common.annotations.Beta;
import com.google.common.collect.Multimap;
import javax.annotation.Nonnull;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
/**
* Simple delegating reader suitable as a holder for all other root readers, providing readAll feature.
*/
@Beta
public interface ReaderRegistry extends Reader<DataObject> {
/**
* Performs read on all registered root readers and merges the results into a Multimap. Keys represent identifiers
* for root DataObjects from the data tree modeled by YANG.
*
* @param ctx Read context
*
* @return multimap that preserves deterministic iteration order across non-distinct key values
* @throws ReadFailedException if read was unsuccessful
*/
@Nonnull
Multimap<InstanceIdentifier<? extends DataObject>, ? extends DataObject> readAll(@Nonnull final ReadContext ctx)
throws ReadFailedException;
}
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