com.tinkerpop.gremlin.process.util.TraversalRing Maven / Gradle / Ivy

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package com.tinkerpop.gremlin.process.util;

import com.tinkerpop.gremlin.process.Traversal;

import java.io.Serializable;
import java.util.function.Consumer;
import java.util.stream.Stream;

/**
 * @author Marko A. Rodriguez (http://markorodriguez.com)
 */
public class TraversalRing implements Serializable {

    public Traversal[] traversals;
    private int currentPipeline = -1;

    public TraversalRing(final Traversal... traversals) {
        this.traversals = traversals;
    }

    public Traversal next() {
        this.currentPipeline = (this.currentPipeline + 1) % this.traversals.length;
        return this.traversals[this.currentPipeline];
    }

    public void reset() {
        this.currentPipeline = -1;
    }

    public int size() {
        return this.traversals.length;
    }

    public Stream> stream() {
        return Stream.of(this.traversals);
    }

    public void forEach(final Consumer> consumer) {
        for (int i = 0; i < this.traversals.length; i++) {
            consumer.accept(this.traversals[i]);
        }
    }

}