| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation 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: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.ws.internal.datamodel; |
| |
| import java.util.Enumeration; |
| import java.util.Hashtable; |
| import java.util.Vector; |
| |
| public class BasicModel implements Model |
| { |
| |
| // Copyright |
| public static final String copyright = "(c) Copyright IBM Corporation 2000, 2002."; |
| |
| private String fName; |
| private Hashtable fElements; |
| private Element fRoot; |
| //This is used by the MUID |
| private int fUniqueNumberCounter; |
| |
| public BasicModel ( String name ) |
| { |
| fName = name; |
| fElements = new Hashtable(); |
| fRoot = null; |
| fUniqueNumberCounter = 0; |
| } |
| |
| public void setName ( String name ) |
| { |
| fName = name; |
| } |
| |
| public String getName () |
| { |
| return fName; |
| } |
| |
| |
| /* |
| * simple counter that increments each call |
| */ |
| public int getUniqueNumber() |
| { |
| fUniqueNumberCounter++; |
| return fUniqueNumberCounter; |
| } |
| |
| /* |
| * This will use a unique number and append it to the end of the name |
| * @param String name of the element |
| * @return String MUID |
| */ |
| public String makeMUID(String name) |
| { |
| String num = String.valueOf(getUniqueNumber()); |
| String muid = name + num; |
| return muid; |
| } |
| |
| |
| public boolean setRootElement ( Element root ) |
| { |
| if (root.getModel() == null) |
| addElement(root); |
| else if (root.getModel() != this) |
| return false; |
| fRoot = root; |
| return true; |
| } |
| |
| public Element getRootElement () |
| { |
| if (fRoot == null) fRoot = getFirstElement(); |
| return fRoot; |
| } |
| |
| |
| /** |
| * Get the elements that have this name |
| * @param String name the name of the element |
| * @return Vector a vector of elements that have this name |
| * These elements may be of different types |
| **/ |
| |
| public Vector getElementsByName(String name) |
| { |
| Vector vector = new Vector(); |
| Enumeration e = fElements.keys(); |
| while (e.hasMoreElements()){ |
| Element element = (Element)e.nextElement(); |
| if (element.getName().equals(name)) vector.addElement(element); |
| } |
| return vector; |
| } |
| |
| |
| |
| public boolean addElement ( Element element ) |
| { |
| if (element.getModel() != null) return false; |
| fElements.put(element,element); |
| return true; |
| } |
| |
| public boolean removeElement ( Element element ) |
| { |
| if (element.getModel() != this) return false; |
| element.disconnectAll(); |
| if (fRoot == element) fRoot = null; |
| return (fElements.remove(element) == element); |
| } |
| |
| public Enumeration getElements () |
| { |
| return fElements.elements(); |
| } |
| |
| public int getNumberOfElements () |
| { |
| return fElements.size(); |
| } |
| |
| public boolean containsElement ( Element element ) |
| { |
| return fElements.contains(element); |
| } |
| |
| private Element getFirstElement () |
| { |
| Enumeration e = getElements(); |
| return (e.hasMoreElements() ? (Element)e.nextElement() : null); |
| } |
| |
| public String toString () |
| { |
| return getName(); |
| } |
| } |
| |