ChildrenRuntimeTasks.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.qe.runtime;

import org.apache.doris.nereids.util.Utils;

import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Maps;

import java.util.List;
import java.util.Map;

public class ChildrenRuntimeTasks<Id, C extends AbstractRuntimeTask<?, ?>> {
    // LinkedHashMap: make sure the key set order is same as the input map
    //                so that we can initial the runtime filter merge backend first
    private final Map<Id, C> childrenTasks = Maps.newLinkedHashMap();

    public ChildrenRuntimeTasks(Map<Id, C> childrenTasks) {
        this.childrenTasks.putAll(childrenTasks);
    }

    public C get(Id id) {
        return childrenTasks.get(id);
    }

    public List<C> allTasks() {
        return Utils.fastToImmutableList(childrenTasks.values());
    }

    public Map<Id, C> allTaskMap() {
        return ImmutableMap.copyOf(childrenTasks);
    }
}