CostStateUpdateEvent.java

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package org.apache.doris.nereids.metrics.event;

import org.apache.doris.nereids.memo.GroupExpression;
import org.apache.doris.nereids.properties.PhysicalProperties;
import org.apache.doris.nereids.util.Utils;

/**
 * cost state event
 */
public class CostStateUpdateEvent extends StateEvent {
    private final double cost;
    private final PhysicalProperties physicalProperties;

    private CostStateUpdateEvent(GroupExpression groupExpression, double cost, PhysicalProperties physicalProperties) {
        super(groupExpression);
        this.cost = cost;
        this.physicalProperties = physicalProperties;
    }

    public static CostStateUpdateEvent of(GroupExpression groupExpression, double cost,
            PhysicalProperties physicalProperties) {
        return checkConnectContext(CostStateUpdateEvent.class)
                ? new CostStateUpdateEvent(groupExpression, cost, physicalProperties) : null;
    }

    @Override
    public String toString() {
        return Utils.toSqlString("CostStateEvent", "groupExpression", getGroupExpression(),
                "cost", cost, "physicalProperties", physicalProperties);
    }
}