Add forwarding transactions to binding v1
[mdsal.git] / binding / mdsal-binding-spi / src / main / java / org / opendaylight / mdsal / binding / spi / ForwardingReadTransaction.java
1 /*
2  * Copyright © 2017, 2018 Red Hat, Inc. and others.
3  *
4  * This program and the accompanying materials are made available under the
5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6  * and is available at http://www.eclipse.org/legal/epl-v10.html
7  */
8 package org.opendaylight.mdsal.binding.spi;
9
10 import com.google.common.collect.ForwardingObject;
11 import com.google.common.util.concurrent.FluentFuture;
12 import java.util.Optional;
13 import org.opendaylight.mdsal.binding.api.ReadTransaction;
14 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
15 import org.opendaylight.yangtools.yang.binding.DataObject;
16 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
17
18 /**
19  * Utility {@link ReadTransaction} implementation which forwards all interface method
20  * invocation to a delegate instance.
21  */
22 public class ForwardingReadTransaction extends ForwardingObject implements ReadTransaction {
23
24     private final ReadTransaction delegate;
25
26     protected ForwardingReadTransaction(ReadTransaction delegate) {
27         this.delegate = delegate;
28     }
29
30     @Override
31     protected ReadTransaction delegate() {
32         return delegate;
33     }
34
35     @Override
36     public <T extends DataObject> FluentFuture<Optional<T>> read(LogicalDatastoreType store,
37             InstanceIdentifier<T> path) {
38         return delegate.read(store, path);
39     }
40
41     @Override
42     public Object getIdentifier() {
43         return delegate.getIdentifier();
44     }
45
46     @Override
47     public void close() {
48         delegate.close();
49     }
50 }