--- /dev/null
+/*\r
+\r
+ Derby - Class org.apache.derby.iapi.sql.execute.ExecutionStmtValidator\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.execute;\r
+\r
+import org.apache.derby.iapi.error.StandardException;\r
+import org.apache.derby.iapi.sql.execute.ConstantAction;\r
+\r
+/**\r
+ * An ExecutionStatementValidator is an object that is\r
+ * handed a ConstantAction and asked whether it is ok for\r
+ * this result set to execute. When something like\r
+ * a trigger is executing, one of these gets pushed.\r
+ * Before execution, each validator that has been pushed\r
+ * is invoked on the result set that we are about to\r
+ * execution. It is up to the validator to look at\r
+ * the result set and either complain (throw an exception)\r
+ * or let it through.\r
+ *\r
+ */\r
+public interface ExecutionStmtValidator\r
+{\r
+ /**\r
+ * Validate the statement.\r
+ *\r
+ * @param constantAction The constant action that we are about to execute. \r
+ *\r
+ * @exception StandardException on error\r
+ *\r
+ * @see ConstantAction\r
+ */\r
+ public void validateStatement(ConstantAction constantAction)\r
+ throws StandardException;\r
+}\r