| /******************************************************************************* |
| * Copyright (c) 2005, 2009 Andrea Bittau, University College London, 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: |
| * Andrea Bittau - initial API and implementation from the PsychoPath XPath 2.0 |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.processor; |
| |
| import java.util.Iterator; |
| import java.util.ListIterator; |
| |
| import org.eclipse.wst.xml.xpath2.api.Item; |
| import org.eclipse.wst.xml.xpath2.api.typesystem.ItemType; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.AnyType; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.NodeType; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.QName; |
| |
| /** |
| * Interface to the methods of range of result sequence |
| * @deprecated Use org.eclipse.wst.xml.xpath2.api.ResultSequence instead |
| */ |
| public abstract class ResultSequence implements org.eclipse.wst.xml.xpath2.api.ResultSequence { |
| |
| /** |
| * add item |
| * |
| * @param item |
| * is an item of any type. |
| */ |
| public abstract void add(AnyType item); |
| |
| /** |
| * concatinate from rs |
| * |
| * @param rs |
| * is a Result Sequence. |
| */ |
| public abstract void concat(ResultSequence rs); |
| |
| /** |
| * List Iterator. |
| */ |
| public abstract ListIterator iterator(); |
| |
| /** |
| * get item in index i |
| * |
| * @param i |
| * is the position. |
| */ |
| public abstract AnyType get(int i); |
| |
| /** |
| * get the size |
| * |
| * @return the size. |
| */ |
| public abstract int size(); |
| |
| /** |
| * clear |
| */ |
| public abstract void clear(); |
| |
| /** |
| * create a new result sequence |
| * |
| * @return a new result sequence. |
| */ |
| public abstract ResultSequence create_new(); |
| |
| /** |
| * retrieve the first item |
| * |
| * @return the first item. |
| */ |
| public AnyType first() { |
| return get(0); |
| } |
| |
| /** |
| * check is the sequence is empty |
| * |
| * @return boolean. |
| */ |
| public boolean empty() { |
| if (size() == 0) |
| return true; |
| return false; |
| } |
| |
| /** |
| * retrieve items in sequence |
| * |
| * @return result string |
| */ |
| public String string() { |
| String result = ""; |
| int num = 1; |
| |
| StringBuffer buf = new StringBuffer(); |
| for (Iterator i = iterator(); i.hasNext();) { |
| AnyType elem = (AnyType) i.next(); |
| |
| buf.append(num + ") "); |
| |
| buf.append(elem.string_type() + ": "); |
| |
| String value = elem.getStringValue(); |
| |
| if (elem instanceof NodeType) { |
| QName tmp = ((NodeType) elem).node_name(); |
| |
| if (tmp != null) |
| value = tmp.expanded_name(); |
| } |
| buf.append(value + "\n"); |
| |
| num++; |
| } |
| result = buf.toString(); |
| if (num == 1) |
| result = "Empty results\n"; |
| return result; |
| } |
| |
| /** |
| * release the result sequence |
| */ |
| public void release() { |
| ResultSequenceFactory.release(this); |
| } |
| |
| /** |
| * @since 2.0 |
| */ |
| public Item item(int index) { |
| return get(index); |
| } |
| |
| /** |
| * @since 2.0 |
| */ |
| public ItemType itemType(int index) { |
| return get(index).getItemType(); |
| } |
| |
| /** |
| * @since 2.0 |
| */ |
| public Object value(int index) { |
| return get(index).getNativeValue(); |
| } |
| } |