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Neo4j kernel is a lightweight, embedded Java database designed to store data structured as graphs rather than tables. For more information, see http://neo4j.org.

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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.neo4j.kernel.api.query;

import java.util.Map;

import static java.util.Collections.emptyMap;

final class SimpleState extends ExecutingQueryStatus
{
    private static final ExecutingQueryStatus PARSING = new SimpleState( PARSING_STATE );
    private static final ExecutingQueryStatus PLANNING = new SimpleState( PLANNING_STATE );
    private static final ExecutingQueryStatus PLANNED = new SimpleState( PLANNED_STATE );
    private static final ExecutingQueryStatus RUNNING = new SimpleState( RUNNING_STATE );
    private final String name;

    static ExecutingQueryStatus parsing()
    {
        return PARSING;
    }

    static ExecutingQueryStatus planning()
    {
        return PLANNING;
    }

    static ExecutingQueryStatus planned()
    {
        return PLANNED;
    }

    static ExecutingQueryStatus running()
    {
        return RUNNING;
    }

    private SimpleState( String name )
    {
        this.name = name;
    }

    @Override
    long waitTimeNanos( long currentTimeNanos )
    {
        return 0;
    }

    @Override
    Map toMap( long currentTimeNanos )
    {
        return emptyMap();
    }

    @Override
    String name()
    {
        return name;
    }

    @Override
    boolean isParsingOrPlanning()
    {
        return this == PLANNING || this == PARSING;
    }
}