com.tinkerpop.blueprints.oupls.sail.TrivialMatcher Maven / Gradle / Ivy

Go to download
package com.tinkerpop.blueprints.oupls.sail;

import com.tinkerpop.blueprints.Edge;
import com.tinkerpop.blueprints.Graph;
import org.openrdf.model.Resource;
import org.openrdf.model.URI;
import org.openrdf.model.Value;

/**
 * A matcher to handle the trivial triple pattern in which subject, predicate, object, and context are all unspecified.
 * It returns all statements.
 *
 * @author Joshua Shinavier (http://fortytwo.net)
 */
public class TrivialMatcher extends Matcher {
    private final Graph graph;

    public TrivialMatcher(final Graph graph) {
        super(false, false, false, false);
        this.graph = graph;
    }

    @Override
    public Iterable match(final Resource subject, final URI predicate, final Value object, final Resource context) {
        return new IteratorCloseableIterable(graph.getEdges().iterator());
    }
}