| /******************************************************************************* |
| * Copyright (c) 2009 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.java; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.ListIterator; |
| |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jpt.core.context.BaseJoinColumn; |
| import org.eclipse.jpt.core.context.Entity; |
| import org.eclipse.jpt.core.context.JoinColumn; |
| import org.eclipse.jpt.core.context.RelationshipMapping; |
| import org.eclipse.jpt.core.context.TypeMapping; |
| import org.eclipse.jpt.core.context.java.JavaJoinColumn; |
| import org.eclipse.jpt.core.context.java.JavaJoinColumnEnabledRelationshipReference; |
| import org.eclipse.jpt.core.context.java.JavaJoinColumnJoiningStrategy; |
| import org.eclipse.jpt.core.context.java.JavaRelationshipMapping; |
| import org.eclipse.jpt.core.internal.resource.java.NullJoinColumnAnnotation; |
| import org.eclipse.jpt.core.internal.validation.DefaultJpaValidationMessages; |
| import org.eclipse.jpt.core.internal.validation.JpaValidationMessages; |
| import org.eclipse.jpt.core.resource.java.JavaResourcePersistentAttribute; |
| import org.eclipse.jpt.core.resource.java.JoinColumnAnnotation; |
| import org.eclipse.jpt.core.resource.java.JoinColumnsAnnotation; |
| import org.eclipse.jpt.core.resource.java.NestableAnnotation; |
| import org.eclipse.jpt.core.utility.TextRange; |
| import org.eclipse.jpt.db.Table; |
| import org.eclipse.jpt.utility.Filter; |
| import org.eclipse.jpt.utility.internal.CollectionTools; |
| import org.eclipse.jpt.utility.internal.iterators.CloneListIterator; |
| 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; |
| import org.eclipse.wst.validation.internal.provisional.core.IReporter; |
| |
| public class GenericJavaJoinColumnJoiningStrategy |
| extends AbstractJavaJpaContextNode |
| implements JavaJoinColumnJoiningStrategy |
| { |
| protected JavaResourcePersistentAttribute resourcePersistentAttribute; |
| |
| protected JavaJoinColumn defaultJoinColumn; |
| |
| protected final List<JavaJoinColumn> specifiedJoinColumns; |
| |
| |
| public GenericJavaJoinColumnJoiningStrategy(JavaJoinColumnEnabledRelationshipReference parent) { |
| super(parent); |
| this.specifiedJoinColumns = new ArrayList<JavaJoinColumn>(); |
| } |
| |
| |
| @Override |
| public JavaJoinColumnEnabledRelationshipReference getParent() { |
| return (JavaJoinColumnEnabledRelationshipReference) super.getParent(); |
| } |
| |
| public JavaJoinColumnEnabledRelationshipReference getRelationshipReference() { |
| return this.getParent(); |
| } |
| |
| public JavaRelationshipMapping getRelationshipMapping() { |
| return this.getRelationshipReference().getRelationshipMapping(); |
| } |
| |
| public void addStrategy() { |
| if (specifiedJoinColumnsSize() == 0) { |
| addSpecifiedJoinColumn(0); |
| } |
| } |
| |
| public void removeStrategy() { |
| for (JoinColumn each : CollectionTools.iterable(specifiedJoinColumns())) { |
| removeSpecifiedJoinColumn(each); |
| } |
| } |
| |
| |
| // **************** join columns ******************************************* |
| |
| public ListIterator<JavaJoinColumn> joinColumns() { |
| return this.hasSpecifiedJoinColumns() ? |
| this.specifiedJoinColumns() : this.defaultJoinColumns(); |
| } |
| |
| public int joinColumnsSize() { |
| return this.hasSpecifiedJoinColumns() ? |
| this.specifiedJoinColumnsSize() : this.defaultJoinColumnsSize(); |
| } |
| |
| |
| // **************** default join column ************************************ |
| |
| public JavaJoinColumn getDefaultJoinColumn() { |
| return this.defaultJoinColumn; |
| } |
| |
| protected void setDefaultJoinColumn(JavaJoinColumn column) { |
| JavaJoinColumn old = this.defaultJoinColumn; |
| this.defaultJoinColumn = column; |
| this.firePropertyChanged(DEFAULT_JOIN_COLUMN_PROPERTY, old, column); |
| } |
| |
| protected ListIterator<JavaJoinColumn> defaultJoinColumns() { |
| if (this.defaultJoinColumn != null) { |
| return new SingleElementListIterator<JavaJoinColumn>(this.defaultJoinColumn); |
| } |
| return EmptyListIterator.instance(); |
| } |
| |
| protected int defaultJoinColumnsSize() { |
| return (this.defaultJoinColumn == null) ? 0 : 1; |
| } |
| |
| |
| // **************** specified join columns ********************************* |
| |
| public ListIterator<JavaJoinColumn> specifiedJoinColumns() { |
| return new CloneListIterator<JavaJoinColumn>(this.specifiedJoinColumns); |
| } |
| |
| public int specifiedJoinColumnsSize() { |
| return this.specifiedJoinColumns.size(); |
| } |
| |
| public boolean hasSpecifiedJoinColumns() { |
| return ! this.specifiedJoinColumns.isEmpty(); |
| } |
| |
| public JavaJoinColumn addSpecifiedJoinColumn(int index) { |
| JavaJoinColumn oldDefaultJoinColumn = this.defaultJoinColumn; |
| if (oldDefaultJoinColumn != null) { |
| //null the default join column now if one already exists. |
| //if one does not exist, there is already a specified join column. |
| //Remove it now so that it doesn't get removed during an update and |
| //cause change notifications to be sent to the UI in the wrong order |
| this.defaultJoinColumn = null; |
| } |
| JavaJoinColumn joinColumn = |
| getJpaFactory().buildJavaJoinColumn(this, createJoinColumnOwner()); |
| this.specifiedJoinColumns.add(index, joinColumn); |
| JoinColumnAnnotation joinColumnAnnotation = addAnnotation(index); |
| joinColumn.initialize(joinColumnAnnotation); |
| fireItemAdded(SPECIFIED_JOIN_COLUMNS_LIST, index, joinColumn); |
| if (oldDefaultJoinColumn != null) { |
| firePropertyChanged(DEFAULT_JOIN_COLUMN_PROPERTY, oldDefaultJoinColumn, null); |
| } |
| return joinColumn; |
| } |
| |
| protected void addSpecifiedJoinColumn(int index, JavaJoinColumn joinColumn) { |
| addItemToList(index, joinColumn, this.specifiedJoinColumns, SPECIFIED_JOIN_COLUMNS_LIST); |
| } |
| |
| protected void addSpecifiedJoinColumn(JavaJoinColumn joinColumn) { |
| addSpecifiedJoinColumn(this.specifiedJoinColumns.size(), joinColumn); |
| } |
| |
| public void removeSpecifiedJoinColumn(JoinColumn joinColumn) { |
| removeSpecifiedJoinColumn(this.specifiedJoinColumns.indexOf(joinColumn)); |
| } |
| |
| public void removeSpecifiedJoinColumn(int index) { |
| JavaJoinColumn removedJoinColumn = this.specifiedJoinColumns.remove(index); |
| if (this.specifiedJoinColumns.isEmpty()) { |
| //create the defaultJoinColumn now or this will happen during project update |
| //after removing the join column from the resource model. That causes problems |
| //in the UI because the change notifications end up in the wrong order. |
| this.defaultJoinColumn = buildJoinColumn( |
| new NullJoinColumnAnnotation(this.resourcePersistentAttribute)); |
| } |
| removeAnnotation(index); |
| fireItemRemoved(SPECIFIED_JOIN_COLUMNS_LIST, index, removedJoinColumn); |
| if (this.defaultJoinColumn != null) { |
| //fire change notification if a defaultJoinColumn was created above |
| firePropertyChanged(DEFAULT_JOIN_COLUMN_PROPERTY, null, this.defaultJoinColumn); |
| } |
| } |
| |
| protected void removeSpecifiedJoinColumn_(JavaJoinColumn joinColumn) { |
| removeItemFromList(joinColumn, this.specifiedJoinColumns, SPECIFIED_JOIN_COLUMNS_LIST); |
| } |
| |
| public void moveSpecifiedJoinColumn(int targetIndex, int sourceIndex) { |
| CollectionTools.move(this.specifiedJoinColumns, targetIndex, sourceIndex); |
| moveAnnotation(targetIndex, sourceIndex); |
| fireItemMoved(SPECIFIED_JOIN_COLUMNS_LIST, targetIndex, sourceIndex); |
| } |
| |
| protected JoinColumnAnnotation addAnnotation(int index) { |
| return (JoinColumnAnnotation) this.resourcePersistentAttribute. |
| addSupportingAnnotation( |
| index, |
| JoinColumnAnnotation.ANNOTATION_NAME, |
| JoinColumnsAnnotation.ANNOTATION_NAME); |
| } |
| |
| protected void removeAnnotation(int index) { |
| this.resourcePersistentAttribute. |
| removeSupportingAnnotation( |
| index, |
| JoinColumnAnnotation.ANNOTATION_NAME, |
| JoinColumnsAnnotation.ANNOTATION_NAME); |
| } |
| |
| protected void moveAnnotation(int targetIndex, int sourceIndex) { |
| this.resourcePersistentAttribute. |
| moveSupportingAnnotation( |
| targetIndex, |
| sourceIndex, |
| JoinColumnsAnnotation.ANNOTATION_NAME); |
| } |
| |
| |
| // **************** resource => context ************************************ |
| |
| public void initialize() { |
| this.resourcePersistentAttribute = |
| getRelationshipReference().getRelationshipMapping(). |
| getPersistentAttribute().getResourcePersistentAttribute(); |
| initializeSpecifiedJoinColumns(); |
| initializeDefaultJoinColumn(); |
| } |
| |
| protected void initializeSpecifiedJoinColumns() { |
| ListIterator<NestableAnnotation> annotations = |
| this.resourcePersistentAttribute.supportingAnnotations( |
| JoinColumnAnnotation.ANNOTATION_NAME, |
| JoinColumnsAnnotation.ANNOTATION_NAME); |
| while (annotations.hasNext()) { |
| this.specifiedJoinColumns.add(buildJoinColumn((JoinColumnAnnotation) annotations.next())); |
| } |
| } |
| |
| public void initializeDefaultJoinColumn() { |
| if (mayHaveDefaultJoinColumn()) { |
| this.defaultJoinColumn = |
| buildJoinColumn(new NullJoinColumnAnnotation(this.resourcePersistentAttribute)); |
| } |
| } |
| |
| public void update() { |
| this.resourcePersistentAttribute = |
| getRelationshipReference().getRelationshipMapping(). |
| getPersistentAttribute().getResourcePersistentAttribute(); |
| updateSpecifiedJoinColumns(); |
| updateDefaultJoinColumn(); |
| } |
| |
| protected void updateSpecifiedJoinColumns() { |
| ListIterator<JavaJoinColumn> joinColumns = specifiedJoinColumns(); |
| ListIterator<NestableAnnotation> resourceJoinColumns = this.resourcePersistentAttribute.supportingAnnotations(JoinColumnAnnotation.ANNOTATION_NAME, JoinColumnsAnnotation.ANNOTATION_NAME); |
| |
| while (joinColumns.hasNext()) { |
| JavaJoinColumn joinColumn = joinColumns.next(); |
| if (resourceJoinColumns.hasNext()) { |
| joinColumn.update((JoinColumnAnnotation) resourceJoinColumns.next()); |
| } |
| else { |
| removeSpecifiedJoinColumn_(joinColumn); |
| } |
| } |
| |
| while (resourceJoinColumns.hasNext()) { |
| addSpecifiedJoinColumn(buildJoinColumn((JoinColumnAnnotation) resourceJoinColumns.next())); |
| } |
| } |
| |
| protected void updateDefaultJoinColumn() { |
| if (mayHaveDefaultJoinColumn()) { |
| JoinColumnAnnotation nullAnnotation = |
| new NullJoinColumnAnnotation(this.resourcePersistentAttribute); |
| if (this.defaultJoinColumn == null) { |
| setDefaultJoinColumn(this.buildJoinColumn(nullAnnotation)); |
| } |
| this.defaultJoinColumn.update(nullAnnotation); |
| } |
| else { |
| if (this.defaultJoinColumn != null) { |
| setDefaultJoinColumn(null); |
| } |
| } |
| } |
| |
| protected boolean mayHaveDefaultJoinColumn() { |
| return getRelationshipReference().mayHaveDefaultJoinColumn() |
| && ! hasSpecifiedJoinColumns(); |
| } |
| |
| protected JavaJoinColumn buildJoinColumn(JoinColumnAnnotation joinColumnResource) { |
| JavaJoinColumn joinColumn = getJpaFactory().buildJavaJoinColumn(this, createJoinColumnOwner()); |
| joinColumn.initialize(joinColumnResource); |
| return joinColumn; |
| } |
| |
| protected JavaJoinColumn.Owner createJoinColumnOwner() { |
| return new JoinColumnOwner(); |
| } |
| |
| |
| // **************** Java completion proposals ****************************** |
| |
| @Override |
| public Iterator<String> javaCompletionProposals(int pos, Filter<String> filter, CompilationUnit astRoot) { |
| Iterator<String> result = super.javaCompletionProposals(pos, filter, astRoot); |
| if (result != null) { |
| return result; |
| } |
| for (JavaJoinColumn column : CollectionTools.iterable(this.joinColumns())) { |
| result = column.javaCompletionProposals(pos, filter, astRoot); |
| if (result != null) { |
| return result; |
| } |
| } |
| return null; |
| } |
| |
| |
| // **************** validation ********************************************* |
| |
| @Override |
| public void validate(List<IMessage> messages, IReporter reporter, CompilationUnit astRoot) { |
| super.validate(messages, reporter, astRoot); |
| if (getRelationshipMapping().shouldValidateAgainstDatabase()) { |
| for (Iterator<JavaJoinColumn> stream = this.joinColumns(); stream.hasNext(); ) { |
| validateJoinColumn(stream.next(), messages, astRoot); |
| } |
| } |
| } |
| |
| protected void validateJoinColumn(JavaJoinColumn joinColumn, List<IMessage> messages, CompilationUnit astRoot) { |
| if (getRelationshipMapping().getTypeMapping().tableNameIsInvalid(joinColumn.getTable())) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.JOIN_COLUMN_UNRESOLVED_TABLE, |
| new String[] {joinColumn.getTable(), joinColumn.getName()}, |
| joinColumn, |
| joinColumn.getTableTextRange(astRoot) |
| ) |
| ); |
| return; |
| } |
| validateJoinColumnName(joinColumn, messages, astRoot); |
| validationJoinColumnReferencedColumnName(joinColumn, messages, astRoot); |
| } |
| |
| protected void validateJoinColumnName(JavaJoinColumn joinColumn, List<IMessage> messages, CompilationUnit astRoot) { |
| if ( ! joinColumn.isResolved() && joinColumn.getDbTable() != null) { |
| if (joinColumn.getName() != null) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.JOIN_COLUMN_UNRESOLVED_NAME, |
| new String[] {joinColumn.getName()}, |
| joinColumn, |
| joinColumn.getNameTextRange(astRoot) |
| ) |
| ); |
| } |
| else if (joinColumn.getOwner().joinColumnsSize() > 1) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.JOIN_COLUMN_UNRESOLVED_NAME_MULTIPLE_JOIN_COLUMNS, |
| joinColumn, |
| joinColumn.getNameTextRange(astRoot) |
| ) |
| ); |
| } |
| //If the name is null and there is only one join-column, one of these validation messages will apply |
| // 1. target entity does not have a primary key |
| // 2. target entity is not specified |
| // 3. target entity is not an entity |
| } |
| } |
| |
| protected void validationJoinColumnReferencedColumnName(JavaJoinColumn joinColumn, List<IMessage> messages, CompilationUnit astRoot) { |
| if ( ! joinColumn.isReferencedColumnResolved() && joinColumn.getReferencedColumnDbTable() != null) { |
| if (joinColumn.getReferencedColumnName() != null) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.JOIN_COLUMN_REFERENCED_COLUMN_UNRESOLVED_NAME, |
| new String[] {joinColumn.getReferencedColumnName(), joinColumn.getName()}, |
| joinColumn, |
| joinColumn.getReferencedColumnNameTextRange(astRoot) |
| ) |
| ); |
| } |
| else if (joinColumn.getOwner().joinColumnsSize() > 1) { |
| messages.add( |
| DefaultJpaValidationMessages.buildMessage( |
| IMessage.HIGH_SEVERITY, |
| JpaValidationMessages.JOIN_COLUMN_REFERENCED_COLUMN_UNRESOLVED_NAME_MULTIPLE_JOIN_COLUMNS, |
| joinColumn, |
| joinColumn.getReferencedColumnNameTextRange(astRoot) |
| ) |
| ); |
| } |
| //If the referenced column name is null and there is only one join-column, one of these validation messages will apply |
| // 1. target entity does not have a primary key |
| // 2. target entity is not specified |
| // 3. target entity is not an entity |
| } |
| } |
| |
| public TextRange getValidationTextRange(CompilationUnit astRoot) { |
| return this.getRelationshipReference().getValidationTextRange(astRoot); |
| } |
| |
| |
| // **************** join column owner adapter ****************************** |
| |
| public class JoinColumnOwner |
| implements JavaJoinColumn.Owner |
| { |
| public JoinColumnOwner() { |
| super(); |
| } |
| |
| |
| /** |
| * by default, the join column is in the type mapping's primary table |
| */ |
| public String getDefaultTableName() { |
| return getTypeMapping().getPrimaryTableName(); |
| } |
| |
| public Entity getTargetEntity() { |
| return getRelationshipMapping().getResolvedTargetEntity(); |
| } |
| |
| public String getAttributeName() { |
| return getRelationshipMapping().getPersistentAttribute().getName(); |
| } |
| |
| public RelationshipMapping getRelationshipMapping() { |
| return GenericJavaJoinColumnJoiningStrategy.this.getRelationshipMapping(); |
| } |
| |
| public boolean tableNameIsInvalid(String tableName) { |
| return getTypeMapping().tableNameIsInvalid(tableName); |
| } |
| |
| /** |
| * the join column can be on a secondary table |
| */ |
| public boolean tableIsAllowed() { |
| return true; |
| } |
| |
| public TypeMapping getTypeMapping() { |
| return getRelationshipMapping().getTypeMapping(); |
| } |
| |
| public Table getDbTable(String tableName) { |
| return getTypeMapping().getDbTable(tableName); |
| } |
| |
| public Table getReferencedColumnDbTable() { |
| Entity targetEntity = getTargetEntity(); |
| return (targetEntity == null) ? null : targetEntity.getPrimaryDbTable(); |
| } |
| |
| public boolean isVirtual(BaseJoinColumn joinColumn) { |
| return GenericJavaJoinColumnJoiningStrategy.this.defaultJoinColumn == joinColumn; |
| } |
| |
| public String getDefaultColumnName() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| public TextRange getValidationTextRange(CompilationUnit astRoot) { |
| return GenericJavaJoinColumnJoiningStrategy.this.getValidationTextRange(astRoot); |
| } |
| |
| public int joinColumnsSize() { |
| return GenericJavaJoinColumnJoiningStrategy.this.joinColumnsSize(); |
| } |
| } |
| } |