| /******************************************************************************* |
| * Copyright (c) 2008 Oracle. 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: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.ui.internal.widgets; |
| |
| import java.util.Collection; |
| import java.util.List; |
| import org.eclipse.jpt.ui.internal.details.JptUiDetailsMessages; |
| import org.eclipse.jpt.utility.internal.StringTools; |
| import org.eclipse.jpt.utility.internal.node.AbstractNode; |
| import org.eclipse.jpt.utility.internal.node.Node; |
| import org.eclipse.jpt.utility.internal.node.Problem; |
| |
| /** |
| * This is the state object used by the <code>NewNameDialog</code>, which stores |
| * the current name and validates it when it is modified. |
| * |
| * @see NewNameDialog |
| * |
| * @version 2.0 |
| * @since 2.0 |
| */ |
| @SuppressWarnings("nls") |
| final class NewNameStateObject extends AbstractNode |
| { |
| /** |
| * The initial input or <code>null</code> if no initial value can be |
| * specified. |
| */ |
| private String name; |
| |
| /** |
| * The collection of names that can't be used or an empty collection if none |
| * are available. |
| */ |
| private Collection<String> names; |
| |
| /** |
| * The <code>Validator</code> used to validate this state object. |
| */ |
| private Validator validator; |
| |
| /** |
| * Notifies a change in the name property. |
| */ |
| static final String NAME_PROPERTY = "name"; |
| |
| /** |
| * Creates a new <code>NewNameStateObject</code>. |
| * |
| * @param name The initial input or <code>null</code> if no initial value can |
| * be specified |
| * @param names The collection of names that can't be used or an empty |
| * collection if none are available |
| */ |
| NewNameStateObject(String name, Collection<String> names) { |
| super(null); |
| |
| this.name = name; |
| this.names = names; |
| } |
| |
| /** |
| * Validates the name property. |
| * |
| * @param currentProblems The list to which <code>Problem</code>s can be |
| * added |
| */ |
| private void addNameProblems(List<Problem> currentProblems) { |
| |
| if (StringTools.stringIsEmpty(name)) { |
| currentProblems.add(buildProblem(JptUiDetailsMessages.NewNameStateObject_nameMustBeSpecified)); |
| } |
| else if (names.contains(name.trim())) { |
| currentProblems.add(buildProblem(JptUiDetailsMessages.NewNameStateObject_nameAlreadyExists)); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| */ |
| @Override |
| protected void addProblemsTo(List<Problem> currentProblems) |
| { |
| super.addProblemsTo(currentProblems); |
| addNameProblems(currentProblems); |
| } |
| |
| /* |
| * (non-Javadoc) |
| */ |
| @Override |
| protected void checkParent(Node parentNode) { |
| } |
| |
| /* |
| * (non-Javadoc) |
| */ |
| public String displayString() { |
| return null; |
| } |
| |
| /** |
| * Returns the current name stored in this state object. |
| * |
| * @return The current name or <code>null</code> |
| */ |
| String getName() { |
| return name; |
| } |
| |
| /** |
| * Sets the current name stored in this state object or <code>null</code> to |
| * clear it. |
| * |
| * @param name The new name or <code>null</code> |
| */ |
| public void setName(String name) { |
| String oldName = this.name; |
| this.name = name; |
| firePropertyChanged(NAME_PROPERTY, oldName, name); |
| } |
| |
| /* |
| * (non-Javadoc) |
| */ |
| @Override |
| public void setValidator(Validator validator) { |
| this.validator = validator; |
| } |
| |
| /* |
| * (non-Javadoc) |
| */ |
| @Override |
| public Validator getValidator() { |
| return validator; |
| } |
| } |