io.mindmaps.graql.internal.query.match.MatchQueryLimit Maven / Gradle / Ivy

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/*
 * MindmapsDB - A Distributed Semantic Database
 * Copyright (C) 2016  Mindmaps Research Ltd
 *
 * MindmapsDB 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.
 *
 * MindmapsDB 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 MindmapsDB. If not, see .
 */

package io.mindmaps.graql.internal.query.match;

import io.mindmaps.concept.Concept;

import java.util.Map;
import java.util.stream.Stream;

/**
 * "Limit" modifier for match query that limits the results of a query.
 */
class MatchQueryLimit extends MatchQueryModifier {

    private final long limit;

    MatchQueryLimit(MatchQueryInternal inner, long limit) {
        super(inner);
        this.limit = limit;
    }

    @Override
    protected Stream> transformStream(Stream> stream) {
        return stream.limit(limit);
    }

    @Override
    protected String modifierString() {
        return "limit " + limit;
    }
}