| /* |
| Derby - Class org.apache.derby.impl.sql.compile.RowNumberFunctionNode |
| |
| 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.impl.sql.compile; |
| |
| import java.sql.Types; |
| import java.util.List; |
| import org.apache.derby.iapi.error.StandardException; |
| import org.apache.derby.iapi.services.context.ContextManager; |
| import org.apache.derby.iapi.types.TypeId; |
| |
| /** |
| * Class that represents a call to the ROW_NUMBER() window function. |
| */ |
| public final class RowNumberFunctionNode extends WindowFunctionNode |
| { |
| /** |
| * |
| * @param op operand (null for now) |
| * @param w The window definition or reference |
| */ |
| RowNumberFunctionNode(ValueNode op, WindowNode w, ContextManager cm) |
| throws StandardException { |
| super(op, "ROW_NUMBER", w, cm); |
| setType( TypeId.getBuiltInTypeId( Types.BIGINT ), |
| TypeId.LONGINT_PRECISION, |
| TypeId.LONGINT_SCALE, |
| false, |
| TypeId.LONGINT_MAXWIDTH); |
| } |
| |
| /** |
| * ValueNode override. |
| * @see ValueNode#bindExpression |
| */ |
| @Override |
| ValueNode bindExpression( |
| FromList fromList, SubqueryList subqueryList, List<AggregateNode> aggregates) |
| throws StandardException |
| { |
| super.bindExpression(fromList, subqueryList, aggregates); |
| return this; |
| } |
| } |