com.espertech.esper.epl.join.plan.QueryGraphValueEntryRangeRelOp Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of esper Show documentation

Complex event processing and event series analysis component

The newest version!

/*
 ***************************************************************************************
 *  Copyright (C) 2006 EsperTech, Inc. All rights reserved.                            *
 *  http://www.espertech.com/esper                                                     *
 *  http://www.espertech.com                                                           *
 *  ---------------------------------------------------------------------------------- *
 *  The software in this package is published under the terms of the GPL license       *
 *  a copy of which has been included with this distribution in the license.txt file.  *
 ***************************************************************************************
 */
package com.espertech.esper.epl.join.plan;

import com.espertech.esper.epl.expression.core.ExprNodeUtilityCore;
import com.espertech.esper.epl.expression.core.ExprNode;

public class QueryGraphValueEntryRangeRelOp extends QueryGraphValueEntryRange {

    private static final long serialVersionUID = -4616155064548498888L;

    private final ExprNode expression;
    private final boolean isBetweenPart; // indicate that this is part of a between-clause or in-clause

    public QueryGraphValueEntryRangeRelOp(QueryGraphRangeEnum type, ExprNode expression, boolean isBetweenPart) {
        super(type);
        if (type.isRange()) {
            throw new IllegalArgumentException("Invalid ctor for use with ranges");
        }
        this.expression = expression;
        this.isBetweenPart = isBetweenPart;
    }

    public ExprNode getExpression() {
        return expression;
    }

    public boolean isBetweenPart() {
        return isBetweenPart;
    }

    public String toQueryPlan() {
        return getType().getStringOp() + " on " + ExprNodeUtilityCore.toExpressionStringMinPrecedenceSafe(expression);
    }

    public ExprNode[] getExpressions() {
        return new ExprNode[]{expression};
    }
}