blob: 8cf030a5d975124cb0e47ff6e235f3a8228a8f6f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* Copyright 2000-2013 JetBrains s.r.o.
*
* 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.
*/
/*
* @author max
*/
package com.intellij.util.io;
import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
public abstract class InlineKeyDescriptor<T> implements KeyDescriptor<T> {
private final boolean myCompactFormat = isCompactFormat();
protected boolean isCompactFormat() {
return false;
}
@Override
public final int getHashCode(T value) {
return toInt(value);
}
@Override
public final boolean isEqual(T val1, T val2) {
return toInt(val1) == toInt(val2);
}
@Override
public final void save(DataOutput out, T value) throws IOException {
int v = toInt(value);
if (myCompactFormat) DataInputOutputUtil.writeINT(out, v);
else out.writeInt(v);
}
@Override
public final T read(DataInput in) throws IOException {
int n;
if (myCompactFormat) n = DataInputOutputUtil.readINT(in);
else n = in.readInt();
return fromInt(n);
}
public abstract T fromInt(int n);
public abstract int toInt(T t);
}
|
