--- /dev/null
+/*\r
+\r
+ Derby - Class org.apache.derby.iapi.services.io.TypedFormat\r
+\r
+ Licensed to the Apache Software Foundation (ASF) under one or more\r
+ contributor license agreements. See the NOTICE file distributed with\r
+ this work for additional information regarding copyright ownership.\r
+ The ASF licenses this file to you under the Apache License, Version 2.0\r
+ (the "License"); you may not use this file except in compliance with\r
+ the License. You may obtain a copy of the License at\r
+\r
+ http://www.apache.org/licenses/LICENSE-2.0\r
+\r
+ Unless required by applicable law or agreed to in writing, software\r
+ distributed under the License is distributed on an "AS IS" BASIS,\r
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
+ See the License for the specific language governing permissions and\r
+ limitations under the License.\r
+\r
+ */\r
+\r
+package org.apache.derby.iapi.services.io;\r
+/**\r
+ Derby interface for identifying the format id for the\r
+ stored form of an object. Objects of different classes may\r
+ have the same format id if:\r
+\r
+ <UL>\r
+ <LI> The objects read and write the same stored forms.\r
+ <LI> The object's getTypeId() method returns the same\r
+ identifier.\r
+ <LI> The objects support all the interfaces the type\r
+ implies.\r
+ </UL>\r
+ */\r
+public interface TypedFormat\r
+{\r
+ /**\r
+ Get a universally unique identifier for the type of\r
+ this object. \r
+\r
+ @return The identifier. (A UUID stuffed in an array\r
+ of 16 bytes).\r
+ */ \r
+ int getTypeFormatId();\r
+}\r