| /******************************************************************************* |
| * Copyright (c) 2011 Jesper Moller, 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: |
| * Jesper Moller - initial API and implementation |
| * Jesper Steen Moller - bug 340933 - Migrate to new XPath2 API |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.api; |
| |
| import java.util.Iterator; |
| |
| import org.eclipse.wst.xml.xpath2.api.typesystem.ItemType; |
| |
| /** |
| * Immutable representation of a result |
| * |
| * @since 2.0 |
| */ |
| public interface ResultSequence { |
| /** |
| * Return the size of the result set. Only call this if you need it, since it may require that the entire result |
| * is fetched. |
| * |
| * @return Count of items. |
| */ |
| int size(); |
| |
| /** |
| * Return the native representation of the item. |
| * |
| * @param index |
| * @return Native object representing the item. |
| */ |
| Object value(int index); |
| |
| /** |
| * Return the item. |
| * |
| * @param index |
| * @return Native object representing the item. |
| */ |
| Item item(int index); |
| |
| /** |
| * Return the native representation of the first item. |
| * |
| * @return Native object representing the first item. |
| */ |
| Object firstValue(); |
| |
| /** |
| * XPath2 type definition description of the item at location '0' |
| * |
| * @param index |
| * @return |
| */ |
| ItemType itemType(int index); |
| |
| /** |
| * Is the sequence empty. |
| * |
| * @return true for empty sequences |
| */ |
| boolean empty(); |
| |
| /** |
| * Iterator of Item elements |
| * |
| * @return |
| */ |
| Iterator<Item> iterator(); |
| |
| /** |
| * |
| * |
| * @return |
| */ |
| Item first(); |
| |
| /** |
| * Describe the whole sequence's type. |
| * |
| * @return Item type definition. |
| */ |
| ItemType sequenceType(); |
| } |