LogicalUnary.java

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package org.apache.doris.nereids.trees.plans.logical;

import org.apache.doris.nereids.memo.GroupExpression;
import org.apache.doris.nereids.properties.LogicalProperties;
import org.apache.doris.nereids.trees.expressions.Slot;
import org.apache.doris.nereids.trees.plans.Plan;
import org.apache.doris.nereids.trees.plans.PlanType;
import org.apache.doris.nereids.trees.plans.UnaryPlan;

import com.google.common.collect.ImmutableList;

import java.util.List;
import java.util.Optional;

/**
 * Abstract class for all logical plan that have one child.
 */
public abstract class LogicalUnary<CHILD_TYPE extends Plan>
        extends AbstractLogicalPlan
        implements UnaryPlan<CHILD_TYPE> {

    protected LogicalUnary(PlanType type, CHILD_TYPE child) {
        super(type, ImmutableList.of(child));
    }

    protected LogicalUnary(PlanType type, Optional<GroupExpression> groupExpression,
                            Optional<LogicalProperties> logicalProperties, CHILD_TYPE child) {
        super(type, groupExpression, logicalProperties, child);
    }

    protected LogicalUnary(PlanType type, Optional<GroupExpression> groupExpression,
            Optional<LogicalProperties> logicalProperties, List<Plan> child) {
        super(type, groupExpression, logicalProperties, child);
    }

    public abstract List<Slot> computeOutput();
}