LogicalLeaf.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.LeafPlan;
import org.apache.doris.nereids.trees.plans.PlanType;

import com.google.common.base.Supplier;
import com.google.common.collect.ImmutableList;

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

/**
 * Abstract class for all logical plan that have no child.
 */
public abstract class LogicalLeaf extends AbstractLogicalPlan implements LeafPlan, OutputSavePoint {

    protected LogicalLeaf(PlanType nodeType, Optional<GroupExpression> groupExpression,
            Optional<LogicalProperties> logicalProperties) {
        super(nodeType, groupExpression, logicalProperties, ImmutableList.of());
    }

    protected LogicalLeaf(PlanType nodeType, Optional<GroupExpression> groupExpression,
            Supplier<LogicalProperties> logicalPropertiesSupplier, boolean useZeroId) {
        super(nodeType, groupExpression, logicalPropertiesSupplier, ImmutableList.of(), useZeroId);
    }

    public abstract List<Slot> computeOutput();
}