--- /dev/null
+/*\r
+\r
+ Derby - Class org.apache.derby.iapi.sql.depend.Dependency\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.sql.depend;\r
+\r
+import org.apache.derby.iapi.error.StandardException;\r
+\r
+import org.apache.derby.catalog.UUID;\r
+\r
+/**\r
+ A dependency represents a reliance of the dependent on\r
+ the provider for some information the dependent contains\r
+ or uses. In Language, the usual case is a prepared statement\r
+ using information about a schema object in its executable form.\r
+ It needs to be notified if the schema object changes, so that\r
+ it can recompile against the new information.\r
+ */\r
+public interface Dependency {\r
+\r
+ /**\r
+ return the provider's key for this dependency.\r
+ @return the provider's key for this dependency\r
+ */\r
+ UUID getProviderKey();\r
+\r
+ /**\r
+ return the provider for this dependency.\r
+ @return the provider for this dependency\r
+ */\r
+ Provider getProvider();\r
+\r
+ /**\r
+ return the dependent for this dependency.\r
+ @return the dependent for this dependency\r
+ */\r
+ Dependent getDependent();\r
+\r
+}\r