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/*******************************************************************************
* 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;
}
}
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