PlanItem.java

/*
 * Copyright 2014-2015 the original author or authors
 *
 * Licensed 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 com.wplatform.ddal.dbobject.table;

import com.wplatform.ddal.dbobject.index.Index;

/**
 * The plan item describes the index to be used, and the estimated cost when
 * using it.
 */
public class PlanItem {

    /**
     * The cost.
     */
    double cost;

    private Index index;
    private PlanItem joinPlan;
    private PlanItem nestedJoinPlan;

    public Index getIndex() {
        return index;
    }

    void setIndex(Index index) {
        this.index = index;
    }

    PlanItem getJoinPlan() {
        return joinPlan;
    }

    void setJoinPlan(PlanItem joinPlan) {
        this.joinPlan = joinPlan;
    }

    PlanItem getNestedJoinPlan() {
        return nestedJoinPlan;
    }

    void setNestedJoinPlan(PlanItem nestedJoinPlan) {
        this.nestedJoinPlan = nestedJoinPlan;
    }

}