| /* |
| * 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.asterix.lang.common.clause; |
| |
| import java.util.List; |
| |
| import org.apache.asterix.common.exceptions.CompilationException; |
| import org.apache.asterix.lang.common.base.Clause; |
| import org.apache.asterix.lang.common.base.Expression; |
| import org.apache.asterix.lang.common.visitor.base.ILangVisitor; |
| import org.apache.commons.lang3.ObjectUtils; |
| import org.apache.hyracks.dataflow.common.data.partition.range.IRangeMap; |
| |
| public class OrderbyClause implements Clause { |
| private List<Expression> orderbyList; |
| private List<OrderModifier> modifierList; |
| private IRangeMap rangeMap; |
| private int numFrames = -1; |
| private int numTuples = -1; |
| |
| public OrderbyClause() { |
| // Default constructor. |
| } |
| |
| public OrderbyClause(List<Expression> orderbyList, List<OrderModifier> modifierList) { |
| this.orderbyList = orderbyList; |
| this.modifierList = modifierList; |
| } |
| |
| public List<Expression> getOrderbyList() { |
| return orderbyList; |
| } |
| |
| public void setOrderbyList(List<Expression> orderbyList) { |
| this.orderbyList = orderbyList; |
| } |
| |
| public List<OrderModifier> getModifierList() { |
| return modifierList; |
| } |
| |
| public void setModifierList(List<OrderModifier> modifierList) { |
| this.modifierList = modifierList; |
| } |
| |
| @Override |
| public ClauseType getClauseType() { |
| return ClauseType.ORDER_BY_CLAUSE; |
| } |
| |
| public enum OrderModifier { |
| ASC, |
| DESC |
| } |
| |
| @Override |
| public <R, T> R accept(ILangVisitor<R, T> visitor, T arg) throws CompilationException { |
| return visitor.visit(this, arg); |
| } |
| |
| public int getNumFrames() { |
| return numFrames; |
| } |
| |
| public void setNumFrames(int numFrames) { |
| this.numFrames = numFrames; |
| } |
| |
| public int getNumTuples() { |
| return numTuples; |
| } |
| |
| public void setNumTuples(int numTuples) { |
| this.numTuples = numTuples; |
| } |
| |
| public IRangeMap getRangeMap() { |
| return rangeMap; |
| } |
| |
| public void setRangeMap(IRangeMap rangeMap) { |
| this.rangeMap = rangeMap; |
| } |
| |
| @Override |
| public int hashCode() { |
| return ObjectUtils.hashCodeMulti(modifierList, numFrames, numTuples, orderbyList); |
| } |
| |
| @Override |
| public boolean equals(Object object) { |
| if (this == object) { |
| return true; |
| } |
| if (!(object instanceof OrderbyClause)) { |
| return false; |
| } |
| OrderbyClause target = (OrderbyClause) object; |
| return ObjectUtils.equals(modifierList, target.modifierList) && numFrames == target.numFrames |
| && numTuples == target.numTuples && orderbyList.equals(target.orderbyList); |
| } |
| } |