| /******************************************************************************* |
| * Copyright (c) 2007, 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.core.internal.context.java; |
| |
| import java.util.Iterator; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jpt.core.TextRange; |
| import org.eclipse.jpt.core.context.AbstractJoinColumn; |
| import org.eclipse.jpt.core.context.Entity; |
| import org.eclipse.jpt.core.context.RelationshipMapping; |
| import org.eclipse.jpt.core.context.java.JavaJoinColumn; |
| import org.eclipse.jpt.core.context.java.JavaJpaContextNode; |
| import org.eclipse.jpt.core.resource.java.JoinColumnAnnotation; |
| import org.eclipse.jpt.db.internal.Column; |
| import org.eclipse.jpt.db.internal.Table; |
| import org.eclipse.jpt.utility.internal.Filter; |
| import org.eclipse.jpt.utility.internal.StringTools; |
| import org.eclipse.jpt.utility.internal.iterators.EmptyIterator; |
| import org.eclipse.jpt.utility.internal.iterators.FilteringIterator; |
| |
| |
| public class GenericJavaJoinColumn extends AbstractJavaColumn<JoinColumnAnnotation> implements JavaJoinColumn |
| { |
| |
| protected String specifiedReferencedColumnName; |
| |
| protected String defaultReferencedColumnName; |
| |
| protected JoinColumnAnnotation joinColumn; |
| |
| public GenericJavaJoinColumn(JavaJpaContextNode parent, JavaJoinColumn.Owner owner) { |
| super(parent, owner); |
| } |
| |
| @Override |
| protected JoinColumnAnnotation columnResource() { |
| return this.joinColumn; |
| } |
| |
| public String getReferencedColumnName() { |
| return (this.specifiedReferencedColumnName == null) ? this.defaultReferencedColumnName : this.specifiedReferencedColumnName; |
| } |
| |
| public String getSpecifiedReferencedColumnName() { |
| return this.specifiedReferencedColumnName; |
| } |
| |
| public void setSpecifiedReferencedColumnName(String newSpecifiedReferencedColumnName) { |
| String oldSpecifiedReferencedColumnName = this.specifiedReferencedColumnName; |
| this.specifiedReferencedColumnName = newSpecifiedReferencedColumnName; |
| this.joinColumn.setReferencedColumnName(newSpecifiedReferencedColumnName); |
| firePropertyChanged(AbstractJoinColumn.SPECIFIED_REFERENCED_COLUMN_NAME_PROPERTY, oldSpecifiedReferencedColumnName, newSpecifiedReferencedColumnName); |
| } |
| |
| protected void setSpecifiedReferencedColumnName_(String newSpecifiedReferencedColumnName) { |
| String oldSpecifiedReferencedColumnName = this.specifiedReferencedColumnName; |
| this.specifiedReferencedColumnName = newSpecifiedReferencedColumnName; |
| firePropertyChanged(AbstractJoinColumn.SPECIFIED_REFERENCED_COLUMN_NAME_PROPERTY, oldSpecifiedReferencedColumnName, newSpecifiedReferencedColumnName); |
| } |
| |
| public String getDefaultReferencedColumnName() { |
| return this.defaultReferencedColumnName; |
| } |
| |
| protected void setDefaultReferencedColumnName(String newDefaultReferencedColumnName) { |
| String oldDefaultReferencedColumnName = this.defaultReferencedColumnName; |
| this.defaultReferencedColumnName = newDefaultReferencedColumnName; |
| firePropertyChanged(AbstractJoinColumn.DEFAULT_REFERENCED_COLUMN_NAME_PROPERTY, oldDefaultReferencedColumnName, newDefaultReferencedColumnName); |
| } |
| |
| |
| @Override |
| public JavaJoinColumn.Owner owner() { |
| return (JavaJoinColumn.Owner) super.owner(); |
| } |
| |
| public boolean isVirtual() { |
| return owner().isVirtual(this); |
| } |
| |
| public Table dbReferencedColumnTable() { |
| return owner().dbReferencedColumnTable(); |
| } |
| |
| public Column dbReferencedColumn() { |
| Table table = this.dbReferencedColumnTable(); |
| return (table == null) ? null : table.columnNamed(this.getReferencedColumnName()); |
| } |
| |
| @Override |
| public boolean tableIsAllowed() { |
| return this.owner().tableIsAllowed(); |
| } |
| |
| public boolean referencedColumnNameTouches(int pos, CompilationUnit astRoot) { |
| return columnResource().referencedColumnNameTouches(pos, astRoot); |
| } |
| |
| private Iterator<String> candidateReferencedColumnNames() { |
| Table table = this.owner().dbReferencedColumnTable(); |
| return (table != null) ? table.columnNames() : EmptyIterator.<String> instance(); |
| } |
| |
| private Iterator<String> candidateReferencedColumnNames(Filter<String> filter) { |
| return new FilteringIterator<String, String>(this.candidateReferencedColumnNames(), filter); |
| } |
| |
| private Iterator<String> quotedCandidateReferencedColumnNames(Filter<String> filter) { |
| return StringTools.quote(this.candidateReferencedColumnNames(filter)); |
| } |
| |
| @Override |
| public Iterator<String> connectedCandidateValuesFor(int pos, Filter<String> filter, CompilationUnit astRoot) { |
| Iterator<String> result = super.connectedCandidateValuesFor(pos, filter, astRoot); |
| if (result != null) { |
| return result; |
| } |
| if (this.referencedColumnNameTouches(pos, astRoot)) { |
| return this.quotedCandidateReferencedColumnNames(filter); |
| } |
| return null; |
| } |
| |
| public boolean isReferencedColumnResolved() { |
| return dbReferencedColumn() != null; |
| } |
| |
| public TextRange referencedColumnNameTextRange(CompilationUnit astRoot) { |
| TextRange textRange = columnResource().referencedColumnNameTextRange(astRoot); |
| return (textRange != null) ? textRange : owner().validationTextRange(astRoot); |
| } |
| |
| public TextRange validationTextRange(CompilationUnit astRoot) { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| @Override |
| public void initializeFromResource(JoinColumnAnnotation joinColumn) { |
| this.joinColumn = joinColumn; |
| super.initializeFromResource(joinColumn); |
| this.specifiedReferencedColumnName = joinColumn.getReferencedColumnName(); |
| this.defaultReferencedColumnName = this.defaultReferencedColumnName(); |
| } |
| |
| @Override |
| public void update(JoinColumnAnnotation joinColumn) { |
| this.joinColumn = joinColumn; |
| super.update(joinColumn); |
| this.setSpecifiedReferencedColumnName_(joinColumn.getReferencedColumnName()); |
| this.setDefaultReferencedColumnName(this.defaultReferencedColumnName()); |
| } |
| |
| @Override |
| protected String defaultName() { |
| RelationshipMapping relationshipMapping = owner().relationshipMapping(); |
| if (relationshipMapping == null) { |
| return null; |
| } |
| if (!relationshipMapping.isRelationshipOwner()) { |
| return null; |
| } |
| return buildDefaultName(); |
| } |
| |
| protected String defaultReferencedColumnName() { |
| RelationshipMapping relationshipMapping = owner().relationshipMapping(); |
| if (relationshipMapping == null) { |
| return null; |
| } |
| if (!relationshipMapping.isRelationshipOwner()) { |
| return null; |
| } |
| return buildDefaultReferencedColumnName(); |
| } |
| |
| @Override |
| protected String defaultTable() { |
| RelationshipMapping relationshipMapping = owner().relationshipMapping(); |
| if (relationshipMapping == null) { |
| return null; |
| } |
| if (!relationshipMapping.isRelationshipOwner()) { |
| return null; |
| } |
| return super.defaultTable(); |
| } |
| |
| /** |
| * return the join column's default name; |
| * which is typically <attribute name>_<referenced column name> |
| * but, if we don't have an attribute name (e.g. in a unidirectional |
| * OneToMany or ManyToMany) is |
| * <target entity name>_<referenced column name> |
| */ |
| // <attribute name>_<referenced column name> |
| // or |
| // <target entity name>_<referenced column name> |
| protected String buildDefaultName() { |
| if (owner().joinColumnsSize() != 1) { |
| return null; |
| } |
| String prefix = owner().attributeName(); |
| if (prefix == null) { |
| prefix = targetEntityName(); |
| } |
| if (prefix == null) { |
| return null; |
| } |
| // TODO not sure which of these is correct... |
| // (the spec implies that the referenced column is always the |
| // primary key column of the target entity) |
| // String targetColumn = this.targetPrimaryKeyColumnName(); |
| String targetColumn = getReferencedColumnName(); |
| if (targetColumn == null) { |
| return null; |
| } |
| return prefix + "_" + targetColumn; |
| } |
| |
| /** |
| * return the name of the target entity |
| */ |
| protected String targetEntityName() { |
| Entity targetEntity = owner().targetEntity(); |
| return (targetEntity == null) ? null : targetEntity.getName(); |
| } |
| |
| protected String buildDefaultReferencedColumnName() { |
| if (owner().joinColumnsSize() != 1) { |
| return null; |
| } |
| return this.targetPrimaryKeyColumnName(); |
| } |
| |
| /** |
| * return the name of the single primary key column of the target entity |
| */ |
| protected String targetPrimaryKeyColumnName() { |
| Entity targetEntity = owner().targetEntity(); |
| return (targetEntity == null) ? null : targetEntity.primaryKeyColumnName(); |
| } |
| |
| } |