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  * Invariant that verifies a field's value is not negative.
21  */
22 class ZipFieldInvariantNonNegative implements ZipFieldInvariant {
23 
24     @Override
isValid(long value)25     public boolean isValid(long value) {
26         return value >= 0;
27     }
28 
29     @Override
getName()30     public String getName() {
31         return "Is positive";
32     }
33 }
34