org.xmldb.api.base.ResourceIterator Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of xmldb-api Show documentation
XML:DB API patched for eXist-db
The newest version!
package org.xmldb.api.base;

/*
 * The XML:DB Initiative Software License, Version 1.0
 *
 *
 * Copyright (c) 2000-2003 The XML:DB Initiative.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in
 * the documentation and/or other materials provided with the
 * distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 * if any, must include the following acknowledgment:
 * "This product includes software developed by the
 * XML:DB Initiative (http://www.xmldb.org/)."
 * Alternately, this acknowledgment may appear in the software itself,
 * if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The name "XML:DB Initiative" must not be used to endorse or
 * promote products derived from this software without prior written
 * permission. For written permission, please contact [email protected].
 *
 * 5. Products derived from this software may not be called "XML:DB",
 * nor may "XML:DB" appear in their name, without prior written
 * permission of the XML:DB Initiative.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the XML:DB Initiative. For more information
 * on the XML:DB Initiative, please see .
 */

/**
 * ResourceIterator is used to iterate over a set of resources.
 */
public interface ResourceIterator {
   /**
    * Returns true as long as there are still more resources to be iterated.
    *
    * @return true if there are more resources to iterate, false otherwise.
    * @exception XMLDBException with expected error codes.
    *  ErrorCodes.VENDOR_ERROR for any vendor
    *  specific errors that occur.
    */
   boolean hasMoreResources() throws XMLDBException;


   /**
    * Returns the next Resource instance in the iterator.
    *
    * @return the next Resource instance in the iterator.
    * @exception XMLDBException with expected error codes.
    *  ErrorCodes.VENDOR_ERROR for any vendor
    *  specific errors that occur.
    *  ErrorCodes.NO_SUCH_RESOURCE if the resource iterator is 
    *  empty or all resources have already been retrieved.
    */
   Resource nextResource() throws XMLDBException;
}