| 1 | /* |
| 2 | |
| 3 | Derby - Class org.apache.derby.iapi.services.io.AccessibleByteArrayOutputStream |
| 4 | |
| 5 | Copyright 1998, 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.io; |
| 22 | |
| 23 | import java.io.ByteArrayOutputStream; |
| 24 | |
| 25 | /** |
| 26 | * This allows us to get to the byte array to go back and |
| 27 | * edit contents or get the array without having a copy made. |
| 28 | <P> |
| 29 | Since a copy is not made, users must be careful that no more |
| 30 | writes are made to the stream if the array reference is handed off. |
| 31 | * <p> |
| 32 | * Users of this must make the modifications *before* the |
| 33 | * next write is done, and then release their hold on the |
| 34 | * array. |
| 35 | |
| 36 | */ |
| 37 | public class AccessibleByteArrayOutputStream extends ByteArrayOutputStream { |
| 38 | |
| 39 | public AccessibleByteArrayOutputStream() { |
| 40 | super(); |
| 41 | } |
| 42 | |
| 43 | public AccessibleByteArrayOutputStream(int size) { |
| 44 | super(size); |
| 45 | } |
| 46 | |
| 47 | /** |
| 48 | * The caller promises to set their variable to null |
| 49 | * before any other calls to write to this stream are made. |
| 50 | Or promises to throw away references to the stream before |
| 51 | passing the array reference out of its control. |
| 52 | */ |
| 53 | public byte[] getInternalByteArray() { |
| 54 | return buf; |
| 55 | } |
| 56 | } |