edu.cornell.mannlib.vitro.webapp.dao.jena.EmptyReifier.java Source code

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Here is the source code for edu.cornell.mannlib.vitro.webapp.dao.jena.EmptyReifier.java

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/* $This file is distributed under the terms of the license in /doc/license.txt$ */

package edu.cornell.mannlib.vitro.webapp.dao.jena;

import java.util.ArrayList;
import java.util.Collections;

import org.apache.commons.collections.iterators.EmptyIterator;

import com.hp.hpl.jena.graph.Graph;
import com.hp.hpl.jena.graph.Node;
import com.hp.hpl.jena.graph.Reifier;
import com.hp.hpl.jena.graph.Triple;
import com.hp.hpl.jena.graph.TripleMatch;
import com.hp.hpl.jena.shared.ReificationStyle;
import com.hp.hpl.jena.util.iterator.ExtendedIterator;
import com.hp.hpl.jena.util.iterator.WrappedIterator;

public class EmptyReifier implements Reifier {

    private Graph g;

    public EmptyReifier(Graph g) {
        this.g = g;
    }

    @Override
    public Triple getTriple(Node arg0) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public ExtendedIterator<Node> allNodes() {
        return WrappedIterator.create(Collections.EMPTY_LIST.iterator());
    }

    @Override
    public ExtendedIterator<Node> allNodes(Triple arg0) {
        return WrappedIterator.create(Collections.EMPTY_LIST.iterator());
    }

    @Override
    public void close() {
        // TODO Auto-generated method stub

    }

    @Override
    public ExtendedIterator<Triple> find(TripleMatch arg0) {
        return g.find(arg0);
    }

    @Override
    public ExtendedIterator<Triple> findEither(TripleMatch arg0, boolean arg1) {
        return WrappedIterator.create(EmptyIterator.INSTANCE);
    }

    @Override
    public ExtendedIterator<Triple> findExposed(TripleMatch arg0) {
        return WrappedIterator.create(EmptyIterator.INSTANCE);
    }

    @Override
    public Graph getParentGraph() {
        return g;
    }

    @Override
    public ReificationStyle getStyle() {
        return ReificationStyle.Minimal;
    }

    @Override
    public boolean handledAdd(Triple arg0) {
        g.add(arg0);
        return true;
    }

    @Override
    public boolean handledRemove(Triple arg0) {
        g.delete(arg0);
        return true;
    }

    @Override
    public boolean hasTriple(Node arg0) {
        // TODO Auto-generated method stub
        return false;
    }

    @Override
    public boolean hasTriple(Triple arg0) {
        // TODO Auto-generated method stub
        return false;
    }

    @Override
    public Node reifyAs(Node arg0, Triple arg1) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public void remove(Triple arg0) {
        g.delete(arg0);
    }

    @Override
    public void remove(Node arg0, Triple arg1) {
        g.delete(arg1);
    }

    @Override
    public int size() {
        return g.size();
    }

}