1 /* 2 * Copyright (C) 2017 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.apksig.internal.asn1; 18 19 import java.lang.annotation.ElementType; 20 import java.lang.annotation.Retention; 21 import java.lang.annotation.RetentionPolicy; 22 import java.lang.annotation.Target; 23 24 @Target({ElementType.FIELD}) 25 @Retention(RetentionPolicy.RUNTIME) 26 public @interface Asn1Field { 27 /** Index used to order fields in a container. Required for fields of SEQUENCE containers. */ index()28 public int index() default 0; 29 cls()30 public Asn1TagClass cls() default Asn1TagClass.AUTOMATIC; 31 type()32 public Asn1Type type(); 33 34 /** Tagging mode. Default: NORMAL. */ tagging()35 public Asn1Tagging tagging() default Asn1Tagging.NORMAL; 36 37 /** Tag number. Required when IMPLICIT and EXPLICIT tagging mode is used.*/ tagNumber()38 public int tagNumber() default -1; 39 40 /** {@code true} if this field is optional. Ignored for fields of CHOICE containers. */ optional()41 public boolean optional() default false; 42 43 /** Type of elements. Used only for SET_OF or SEQUENCE_OF. */ elementType()44 public Asn1Type elementType() default Asn1Type.ANY; 45 } 46