| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.iapi.services.classfile.ClassMember |
| 4 | |
| 5 | Copyright 2000, 2004 The Apache Software Foundation or its licensors, as applicable. |
| 6 | |
| 7 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 8 | you may not use this file except in compliance with the License. |
| 9 | You may obtain a copy of the License at |
| 10 | |
| 11 | http://www.apache.org/licenses/LICENSE-2.0 |
| 12 | |
| 13 | Unless required by applicable law or agreed to in writing, software |
| 14 | distributed under the License is distributed on an "AS IS" BASIS, |
| 15 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 16 | See the License for the specific language governing permissions and |
| 17 | limitations under the License. |
| 18 | |
| 19 | */ |
| 20 | |
| 21 | package org.apache.derby.iapi.services.classfile; |
| 22 | |
| 23 | import java.lang.reflect.Modifier; |
| 24 | |
| 25 | import java.io.IOException; |
| 26 | |
| 27 | |
| 28 | |
| 29 | public class ClassMember { |
| 30 | protected ClassHolder cpt; |
| 31 | protected int access_flags; |
| 32 | protected int name_index; |
| 33 | protected int descriptor_index; |
| 34 | protected Attributes attribute_info; // can be null |
| 35 | |
| 36 | ClassMember(ClassHolder cpt, int modifier, int name, int descriptor) { |
| 37 | this.cpt = cpt; |
| 38 | name_index = name; |
| 39 | descriptor_index = descriptor; |
| 40 | access_flags = modifier; |
| 41 | } |
| 42 | |
| 43 | /* |
| 44 | ** Public methods from ClassMember |
| 45 | */ |
| 46 | |
| 47 | public int getModifier() { |
| 48 | return access_flags; |
| 49 | } |
| 50 | |
| 51 | public String getDescriptor() { |
| 52 | return cpt.nameIndexToString(descriptor_index); |
| 53 | } |
| 54 | |
| 55 | public String getName() { |
| 56 | return cpt.nameIndexToString(name_index); |
| 57 | } |
| 58 | |
| 59 | public void addAttribute(String attributeName, ClassFormatOutput info) { |
| 60 | |
| 61 | if (attribute_info == null) |
| 62 | attribute_info = new Attributes(1); |
| 63 | |
| 64 | attribute_info.addEntry(new AttributeEntry(cpt.addUtf8(attributeName), info)); |
| 65 | } |
| 66 | |
| 67 | |
| 68 | /* |
| 69 | ** ---- |
| 70 | */ |
| 71 | |
| 72 | void put(ClassFormatOutput out) throws IOException { |
| 73 | out.putU2(access_flags); |
| 74 | out.putU2(name_index); |
| 75 | out.putU2(descriptor_index); |
| 76 | |
| 77 | if (attribute_info != null) { |
| 78 | out.putU2(attribute_info.size()); |
| 79 | attribute_info.put(out); |
| 80 | } else { |
| 81 | out.putU2(0); |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | int classFileSize() { |
| 86 | int size = 2 + 2 + 2 + 2; |
| 87 | if (attribute_info != null) |
| 88 | size += attribute_info.classFileSize(); |
| 89 | return size; |
| 90 | } |
| 91 | } |