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1   /*
2    * Copyright (C) 2009 The Guava Authors
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package com.google.common.collect;
18  
19  import com.google.gwt.user.client.rpc.SerializationException;
20  import com.google.gwt.user.client.rpc.SerializationStreamReader;
21  import com.google.gwt.user.client.rpc.SerializationStreamWriter;
22  import java.util.ArrayList;
23  import java.util.Comparator;
24  import java.util.List;
25  
26  /**
27   * This class implements the GWT serialization of {@link CompoundOrdering}.
28   *
29   * @author Chris Povirk
30   */
31  public class CompoundOrdering_CustomFieldSerializer {
32  
33    public static void deserialize(SerializationStreamReader reader, CompoundOrdering<?> instance) {}
34  
35    @SuppressWarnings("unchecked") // deserialization is unsafe
36    public static CompoundOrdering<Object> instantiate(SerializationStreamReader reader)
37        throws SerializationException {
38      int n = reader.readInt();
39      List<Comparator<Object>> comparators = new ArrayList<>(n);
40      for (int i = 0; i < n; i++) {
41        comparators.add((Comparator<Object>) reader.readObject());
42      }
43      return new CompoundOrdering<>(comparators);
44    }
45  
46    public static void serialize(SerializationStreamWriter writer, CompoundOrdering<?> instance)
47        throws SerializationException {
48      writer.writeInt(instance.comparators.length);
49      for (Comparator<?> comparator : instance.comparators) {
50        writer.writeObject(comparator);
51      }
52    }
53  }