org.eclipse.stem.ui.diseasemodels.example/src/org/eclipse/stem/ui/diseasemodels/example/presentation/ExamplePropertyStringProviderAdapterFactory.java

// ExamplePropertyStringProviderAdapterFactory.java
package org.eclipse.stem.ui.diseasemodels.example.presentation;

/******************************************************************************
 * Copyright (c) 2007, 2008 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
 *******************************************************************************/

import java.util.MissingResourceException;

import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.edit.provider.IItemPropertyDescriptor;
import org.eclipse.stem.diseasemodels.example.util.ExampleAdapterFactory;
import org.eclipse.stem.ui.adapters.propertystrings.PropertyStringProvider;
import org.eclipse.stem.ui.adapters.propertystrings.PropertyStringProviderAdapter;
import org.eclipse.stem.ui.adapters.propertystrings.PropertyStringProviderAdapterFactory;
import org.eclipse.stem.ui.wizards.StandardPropertyStringProviderAdapterFactory;
import org.eclipse.ui.IStartup;

/**
 * This class represents
 */
public class ExamplePropertyStringProviderAdapterFactory extends
		ExampleAdapterFactory implements
		PropertyStringProviderAdapterFactory, IStartup {

	PropertyStringProviderAdapter adapter = null;

	/**
	 * Default Constructor
	 */
	public ExamplePropertyStringProviderAdapterFactory() {
		super();
		PropertyStringProviderAdapterFactory.INSTANCE.addAdapterFactory(this);
	}

	/**
	 * @see org.eclipse.ui.IStartup#earlyStartup()
	 */
	public void earlyStartup() {
		// Nothing to do here. This method is called after the constructor has
		// run which is the entire point of early activation which causes the
		// factory to be added to the PropertyStringProviderAdapterFactory.INSTANCE
	}

	/**
	 * @see org.eclipse.emf.common.notify.impl.AdapterFactoryImpl#isFactoryForType(java.lang.Object)
	 */
	@Override
	public boolean isFactoryForType(Object type) {
		return super.isFactoryForType(type)
				|| type == PropertyStringProvider.class;
	}

	/**
	 * @see org.eclipse.stem.diseasemodels.example.util.ExampleAdapterFactory#createExampleDiseaseModelAdapter()
	 */
	@Override
	public Adapter createExampleDiseaseModelAdapter() {
		// Have we created one before?
		if (adapter == null) {
			// No
			adapter = new  StandardPropertyStringProviderAdapterFactory.StandardPropertyStringProviderAdapter() {

				/**
				 * @param descriptor
				 * @return the NLS'd name of the property to display to the user
				 */
				public String getPropertyName(IItemPropertyDescriptor descriptor) {
					try {
						return ExampleDiseaseWizardMessages
								.getString(((EStructuralFeature) descriptor
										.getFeature(null)).getName());
					} catch (MissingResourceException e) {
						return super.getPropertyName(descriptor);
					}
				} // getPropertyName

				/**
				 * @param descriptor
				 * @return the NLS'd tool tip text that describes the property
				 */
				public String getPropertyToolTip(
						IItemPropertyDescriptor descriptor) {
					try {
						final EStructuralFeature feature = (EStructuralFeature) descriptor
								.getFeature(null);
						return ExampleDiseaseWizardMessages.getString(feature
								.getName()
								+ TT_SUFFIX);
					} catch (MissingResourceException e) {
						return super.getPropertyToolTip(descriptor);
					}
				} // getPropertyToolTip

				/**
				 * @param descriptor
				 * @return the NLS'd text that represents the units of the
				 *         property
				 */
				public String getPropertyUnits(
						IItemPropertyDescriptor descriptor) {
					try {
						final EStructuralFeature feature = (EStructuralFeature) descriptor
								.getFeature(null);
						return ExampleDiseaseWizardMessages.getString(feature
								.getName()
								+ UNIT_SUFFIX);
					} catch (MissingResourceException e) {
						return super.getPropertyUnits(descriptor);
					}
				} // getPropertyUnits
			};
		} // if we didn't create one before
		return adapter;
	}// createExampleDiseaseModelAdapter()

} // ExamplePropertyStringProviderAdapterFactory