AbstractUnassignedJob.java

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// to you under the Apache License, Version 2.0 (the
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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.nereids.trees.plans.distribute.worker.job;

import org.apache.doris.nereids.StatementContext;
import org.apache.doris.nereids.trees.AbstractTreeNode;
import org.apache.doris.nereids.util.Utils;
import org.apache.doris.planner.ExchangeNode;
import org.apache.doris.planner.PlanFragment;
import org.apache.doris.planner.ScanNode;

import com.google.common.collect.ListMultimap;

import java.util.List;
import java.util.Objects;

/** AbstractUnassignedJob */
public abstract class AbstractUnassignedJob
        extends AbstractTreeNode<UnassignedJob> implements UnassignedJob {
    protected final StatementContext statementContext;
    protected final PlanFragment fragment;
    protected final List<ScanNode> scanNodes;
    protected final ListMultimap<ExchangeNode, UnassignedJob> exchangeToChildJob;

    /** AbstractUnassignedJob */
    public AbstractUnassignedJob(StatementContext statementContext, PlanFragment fragment,
            List<ScanNode> scanNodes, ListMultimap<ExchangeNode, UnassignedJob> exchangeToChildJob) {
        super(Utils.fastToImmutableList(exchangeToChildJob.values()));
        this.statementContext = Objects.requireNonNull(statementContext, "statementContext can not be null");
        this.fragment = Objects.requireNonNull(fragment, "fragment can not be null");
        this.scanNodes = Utils.fastToImmutableList(
                Objects.requireNonNull(scanNodes, "scanNodes can not be null")
        );
        this.exchangeToChildJob
                = Objects.requireNonNull(exchangeToChildJob, "exchangeToChildJob can not be null");
    }

    @Override
    public StatementContext getStatementContext() {
        return statementContext;
    }

    @Override
    public PlanFragment getFragment() {
        return fragment;
    }

    @Override
    public List<ScanNode> getScanNodes() {
        return scanNodes;
    }

    @Override
    public ListMultimap<ExchangeNode, UnassignedJob> getExchangeToChildJob() {
        return exchangeToChildJob;
    }

    @Override
    public String toString() {
        return getClass().getSimpleName();
    }

    @Override
    public UnassignedJob withChildren(List<UnassignedJob> children) {
        throw new UnsupportedOperationException();
    }
}