| /******************************************************************************* |
| * Copyright (c) 2007 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.core.internal.context.persistence; |
| |
| import java.util.List; |
| import java.util.ListIterator; |
| import org.eclipse.jpt.core.JpaStructureNode; |
| import org.eclipse.jpt.core.context.persistence.Persistence; |
| import org.eclipse.jpt.core.context.persistence.PersistenceStructureNodes; |
| import org.eclipse.jpt.core.context.persistence.PersistenceUnit; |
| import org.eclipse.jpt.core.context.persistence.PersistenceXml; |
| import org.eclipse.jpt.core.internal.validation.DefaultJpaValidationMessages; |
| import org.eclipse.jpt.core.internal.validation.JpaValidationMessages; |
| import org.eclipse.jpt.core.resource.persistence.PersistenceFactory; |
| import org.eclipse.jpt.core.resource.persistence.XmlPersistence; |
| import org.eclipse.jpt.core.resource.persistence.XmlPersistenceUnit; |
| import org.eclipse.jpt.core.utility.TextRange; |
| import org.eclipse.jpt.utility.internal.CollectionTools; |
| import org.eclipse.jpt.utility.internal.iterators.EmptyListIterator; |
| import org.eclipse.jpt.utility.internal.iterators.SingleElementListIterator; |
| import org.eclipse.wst.validation.internal.provisional.core.IMessage; |
| |
| public class GenericPersistence extends AbstractPersistenceJpaContextNode |
| implements Persistence |
| { |
| protected XmlPersistence xmlPersistence; |
| |
| // the implementation here is a single persistence unit, although the API |
| // is for a list. we will want to support multiple persistence units soon. |
| protected PersistenceUnit persistenceUnit; |
| |
| public GenericPersistence(PersistenceXml parent, XmlPersistence xmlPersistence) { |
| super(parent); |
| this.initialize(xmlPersistence); |
| } |
| |
| public String getId() { |
| return PersistenceStructureNodes.PERSISTENCE_ID; |
| } |
| |
| |
| // **************** persistence units ************************************** |
| |
| public ListIterator<PersistenceUnit> persistenceUnits() { |
| if (persistenceUnit == null) { |
| return EmptyListIterator.instance(); |
| } |
| else { |
| return new SingleElementListIterator<PersistenceUnit>(persistenceUnit); |
| } |
| } |
| |
| public int persistenceUnitsSize() { |
| return (persistenceUnit == null) ? 0 : 1; |
| } |
| |
| public PersistenceUnit addPersistenceUnit() { |
| return addPersistenceUnit(persistenceUnitsSize()); |
| } |
| |
| public PersistenceUnit addPersistenceUnit(int index) { |
| if (index > 0 || persistenceUnit != null) { |
| throw new IllegalStateException("This implementation does not support multiple persistence units."); |
| } |
| XmlPersistenceUnit xmlPersistenceUnit = PersistenceFactory.eINSTANCE.createXmlPersistenceUnit(); |
| persistenceUnit = createPersistenceUnit(xmlPersistenceUnit); |
| xmlPersistence.getPersistenceUnits().add(xmlPersistenceUnit); |
| fireItemAdded(PERSISTENCE_UNITS_LIST, index, persistenceUnit); |
| return persistenceUnit; |
| } |
| |
| public void removePersistenceUnit(PersistenceUnit persistenceUnit) { |
| removePersistenceUnit(0); |
| } |
| |
| public void removePersistenceUnit(int index) { |
| if (index > 0 ) { |
| throw new IllegalArgumentException(new Integer(index).toString()); |
| } |
| PersistenceUnit oldPersistenceUnit = persistenceUnit; |
| persistenceUnit.dispose(); |
| persistenceUnit = null; |
| xmlPersistence.getPersistenceUnits().remove(index); |
| fireItemRemoved(PERSISTENCE_UNITS_LIST, index, oldPersistenceUnit); |
| } |
| |
| protected void addPersistenceUnit_(PersistenceUnit newPersistenceUnit) { |
| persistenceUnit = newPersistenceUnit; |
| fireItemAdded(PERSISTENCE_UNITS_LIST, 0, persistenceUnit); |
| } |
| |
| protected void removePersistenceUnit_(PersistenceUnit oldPersistenceUnit) { |
| persistenceUnit.dispose(); |
| persistenceUnit = null; |
| fireItemRemoved(PERSISTENCE_UNITS_LIST, 0, oldPersistenceUnit); |
| } |
| |
| |
| // **************** updating *********************************************** |
| |
| protected void initialize(XmlPersistence xmlPersistence) { |
| this.xmlPersistence = xmlPersistence; |
| initializePersistenceUnits(xmlPersistence); |
| } |
| |
| protected void initializePersistenceUnits(XmlPersistence persistence) { |
| // only adding one here, until we support multiple persistence units |
| if (xmlPersistence.getPersistenceUnits().size() > 0) { |
| persistenceUnit = createPersistenceUnit(persistence.getPersistenceUnits().get(0)); |
| } |
| } |
| |
| public void update(XmlPersistence persistence) { |
| this.xmlPersistence = persistence; |
| getJpaFile(this.xmlPersistence.getResource().getResourceModel()).addRootStructureNode(this, this); |
| XmlPersistenceUnit xmlPersistenceUnit = null; |
| if (persistence.getPersistenceUnits().size() > 0) { |
| xmlPersistenceUnit = persistence.getPersistenceUnits().get(0); |
| } |
| |
| if (persistenceUnit != null) { |
| if (xmlPersistenceUnit != null) { |
| persistenceUnit.update(xmlPersistenceUnit); |
| } |
| else { |
| removePersistenceUnit_(persistenceUnit); |
| } |
| } |
| else { |
| if (xmlPersistenceUnit != null) { |
| addPersistenceUnit_(createPersistenceUnit(xmlPersistenceUnit)); |
| } |
| } |
| } |
| |
| protected PersistenceUnit createPersistenceUnit(XmlPersistenceUnit xmlPersistenceUnit) { |
| return getJpaFactory().buildPersistenceUnit(this, xmlPersistenceUnit); |
| } |
| |
| |
| // ************************************************************************* |
| |
| @Override |
| public PersistenceUnit getPersistenceUnit() { |
| throw new UnsupportedOperationException("No PersistenceUnit in this context"); |
| } |
| |
| public JpaStructureNode getStructureNode(int textOffset) { |
| for (PersistenceUnit persistenceUnit : CollectionTools.iterable(persistenceUnits())) { |
| if (persistenceUnit.containsOffset(textOffset)) { |
| return persistenceUnit.getStructureNode(textOffset); |
| } |
| } |
| return this; |
| } |
| |
| public boolean containsOffset(int textOffset) { |
| if (xmlPersistence == null) { |
| return false; |
| } |
| return xmlPersistence.containsOffset(textOffset); |
| } |
| |
| public TextRange getSelectionTextRange() { |
| return xmlPersistence.getSelectionTextRange(); |
| } |
| |
| public TextRange getValidationTextRange() { |
| return xmlPersistence.getValidationTextRange(); |
| } |
| |
| |
| @Override |
| public void addToMessages(List<IMessage> messages) { |
| super.addToMessages(messages); |
| //persistence root validation |
| addNoPersistenceUnitMessage(messages); |
| |
| // note to neil (or whomever): extraneous persistence units can be |
| // accessed through the XmlPersistence resource object |
| addMultiplePersistenceUnitMessage(messages); |
| |
| |
| //persistence unit validation |
| if (persistenceUnit != null) { |
| persistenceUnit.addToMessages(messages); |
| } |
| } |
| |
| protected void addNoPersistenceUnitMessage(List<IMessage> messages) { |
| if (persistenceUnit == null) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.PERSISTENCE_NO_PERSISTENCE_UNIT, |
| this, |
| this.getValidationTextRange()) |
| ); |
| } |
| } |
| |
| protected void addMultiplePersistenceUnitMessage(List<IMessage> messages) { |
| if (xmlPersistence.getPersistenceUnits().size() > 1) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.NORMAL_SEVERITY, |
| JpaValidationMessages.PERSISTENCE_MULTIPLE_PERSISTENCE_UNITS, |
| this, |
| this.getValidationTextRange()) |
| ); |
| } |
| } |
| |
| public void dispose() { |
| getJpaFile(this.xmlPersistence.getResource().getResourceModel()).removeRootStructureNode(this); |
| for (PersistenceUnit persistenceUnit : CollectionTools.iterable(persistenceUnits())) { |
| persistenceUnit.dispose(); |
| } |
| } |
| } |