org.apache.asterix.aql.expression.GroupbyClause Maven / Gradle / Ivy

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/*
 * 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.aql.expression;

import java.util.List;

import org.apache.asterix.aql.base.Clause;
import org.apache.asterix.aql.expression.visitor.IAqlExpressionVisitor;
import org.apache.asterix.aql.expression.visitor.IAqlVisitorWithVoidReturn;
import org.apache.asterix.common.exceptions.AsterixException;

public class GroupbyClause implements Clause {

    private List gbyPairList;
    private List decorPairList;
    private List withVarList;
    private boolean hashGroupByHint;

    public GroupbyClause() {
    }

    public GroupbyClause(List gbyPairList, List decorPairList,
            List withVarList, boolean hashGroupByHint) {
        this.gbyPairList = gbyPairList;
        this.setDecorPairList(decorPairList);
        this.withVarList = withVarList;
        this.hashGroupByHint = hashGroupByHint;
    }

    public List getGbyPairList() {
        return gbyPairList;
    }

    public void setGbyPairList(List vePairList) {
        this.gbyPairList = vePairList;
    }

    public List getWithVarList() {
        return withVarList;
    }

    public void setWithVarList(List withVarList) {
        this.withVarList = withVarList;
    }

    @Override
    public ClauseType getClauseType() {
        return ClauseType.GROUP_BY_CLAUSE;
    }

    @Override
    public  void accept(IAqlVisitorWithVoidReturn visitor, T arg) throws AsterixException {
        visitor.visit(this, arg);
    }

    @Override
    public  R accept(IAqlExpressionVisitor visitor, T arg) throws AsterixException {
        return visitor.visitGroupbyClause(this, arg);
    }

    public void setDecorPairList(List decorPairList) {
        this.decorPairList = decorPairList;
    }

    public List getDecorPairList() {
        return decorPairList;
    }

    public void setHashGroupByHint(boolean hashGroupByHint) {
        this.hashGroupByHint = hashGroupByHint;
    }

    public boolean hasHashGroupByHint() {
        return hashGroupByHint;
    }
}