1 /*
2  * Copyright (C) 2015 The Android Open Source Project
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.android.tools.build.apkzlib.zip;
18 
19 /**
20  * A field rule defines an invariant (<em>i.e.</em>, a constraint) that has to be verified by a
21  * field value.
22  */
23 interface ZipFieldInvariant {
24 
25     /**
26      * Evalutes the invariant against a value.
27      *
28      * @param value the value to check the invariant
29      * @return is the invariant valid?
30      */
isValid(long value)31     boolean isValid(long value);
32 
33     /**
34      * Obtains the name of the invariant. Used for information purposes.
35      *
36      * @return the name of the invariant
37      */
getName()38     String getName();
39 }
40