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/*
  *
  *  *  Copyright 2014 Orient Technologies LTD (info(at)orientechnologies.com)
  *  *
  *  *  Licensed under the Apache License, Version 2.0 (the "License");
  *  *  you may not use this file except in compliance with the License.
  *  *  You may obtain a copy of the License at
  *  *
  *  *       http://www.apache.org/licenses/LICENSE-2.0
  *  *
  *  *  Unless required by applicable law or agreed to in writing, software
  *  *  distributed under the License is distributed on an "AS IS" BASIS,
  *  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  *  *  See the License for the specific language governing permissions and
  *  *  limitations under the License.
  *  *
  *  * For more information: http://www.orientechnologies.com
  *
  */

package com.tinkerpop.blueprints.impls.orient;

import com.tinkerpop.blueprints.CloseableIterable;
import com.tinkerpop.blueprints.Element;

import java.util.Collections;
import java.util.Iterator;

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

  private final Iterable     iterable;
  private final OrientBaseGraph graph;

  public OrientElementIterable(final OrientBaseGraph graph, final Iterable iterable) {
    this.graph = graph;
    this.iterable = iterable;
  }

  @SuppressWarnings("unchecked")
  public Iterator iterator() {
    if (iterable == null)
      return Collections.EMPTY_LIST.iterator();

    return new OrientElementIterator(this.graph, iterable.iterator());
  }

  public void close() {

  }

}