| /* |
| |
| Derby - Class org.apache.derby.catalog.UUID |
| |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| |
| */ |
| |
| package org.apache.derby.catalog; |
| |
| /** |
| |
| An interface for accessing Derby UUIDs, unique identifiers. |
| |
| <p>The values in the |
| system catalog held in ID columns with a type of CHAR(36) are the |
| string representations of these UUIDs. |
| |
| <p>A UUID implements equals() and hashCode based on value equality. |
| |
| */ |
| |
| public interface UUID extends java.io.Externalizable |
| { |
| /** NULL UUID */ |
| static final String NULL = "NULL"; |
| |
| /** |
| UUID_BYTE_LENGTH |
| |
| The number of bytes in the array toByteArray returns. |
| */ |
| static int UUID_BYTE_LENGTH = 16; |
| |
| /** |
| Produce a string representation of this UUID which |
| is suitable for use as a unique ANSI identifier. |
| */ |
| String toANSIidentifier(); |
| |
| /** |
| Clone this UUID. |
| |
| @return a copy of this UUID |
| */ |
| UUID cloneMe(); |
| } |
| |