blob: 488e728e6620079c41728f120e387f844392fbf9 [file] [log] [blame]
Damien Martin-Guillerezf88f4d82015-09-25 13:56:55 +00001// Copyright 2014 The Bazel Authors. All rights reserved.
Han-Wen Nienhuysd08b27f2015-02-25 16:45:20 +01002//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14package com.google.devtools.build.skyframe;
15
16import com.google.common.collect.ImmutableList;
17import com.google.common.collect.ImmutableMap;
18
Michajlo Matijkiw2b71efe2015-06-19 19:23:16 +000019import java.util.Collection;
Han-Wen Nienhuysd08b27f2015-02-25 16:45:20 +010020import java.util.Map;
21
22/**
23 * Immutable implementation of {@link Differencer.Diff}.
24 */
25public class ImmutableDiff implements Differencer.Diff {
26
27 private final ImmutableList<SkyKey> valuesToInvalidate;
28 private final ImmutableMap<SkyKey, SkyValue> valuesToInject;
29
30 public ImmutableDiff(Iterable<SkyKey> valuesToInvalidate, Map<SkyKey, SkyValue> valuesToInject) {
31 this.valuesToInvalidate = ImmutableList.copyOf(valuesToInvalidate);
32 this.valuesToInject = ImmutableMap.copyOf(valuesToInject);
33 }
34
35 @Override
Michajlo Matijkiw2b71efe2015-06-19 19:23:16 +000036 public Collection<SkyKey> changedKeysWithoutNewValues() {
Han-Wen Nienhuysd08b27f2015-02-25 16:45:20 +010037 return valuesToInvalidate;
38 }
39
40 @Override
41 public Map<SkyKey, SkyValue> changedKeysWithNewValues() {
42 return valuesToInject;
43 }
44}