path: root/plugins/org.eclipse.emf.cdo.common/src/org/eclipse/emf/cdo/common/util/BlockingCloseableIterator.java

/*
 * Copyright (c) 2004 - 2011 Eike Stepper (Berlin, Germany) and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *    Simon McDuff - initial API and implementation
 *    Eike Stepper - maintenance
 *************************************************************************/
package org.eclipse.emf.cdo.common.util;

import org.eclipse.net4j.util.collection.CloseableIterator;

/**
 * A closeable iterator that blocks on {@link #hasNext()} until the next element is available or the end of the
 * iteration is reached.
 * 
 * @author Simon McDuff
 * @since 2.0
 */
public interface BlockingCloseableIterator<T> extends CloseableIterator<T>
{
  /**
   * Non-blocking call.
   */
  public T peek();
}