| /******************************************************************************* |
| * Copyright (c) 2007, 2010 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.jpa.core.internal.resource.java.source; |
| |
| import java.util.Iterator; |
| import java.util.List; |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.AbstractTypeDeclaration; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jdt.core.dom.TypeDeclaration; |
| import org.eclipse.jpt.common.core.JptCommonCorePlugin; |
| import org.eclipse.jpt.common.core.JptResourceType; |
| import org.eclipse.jpt.common.core.utility.jdt.AnnotationEditFormatter; |
| import org.eclipse.jpt.common.utility.CommandExecutor; |
| import org.eclipse.jpt.common.utility.internal.iterators.EmptyIterator; |
| import org.eclipse.jpt.jpa.core.JpaAnnotationProvider; |
| import org.eclipse.jpt.jpa.core.resource.java.JavaResourcePersistentType; |
| |
| /** |
| * Java compilation unit (source file) |
| * non package-info.java file |
| */ |
| public final class SourceTypeCompilationUnit |
| extends SourceCompilationUnit |
| { |
| |
| /** |
| * The primary type of the AST compilation unit. We are not going to handle |
| * multiple types defined in a single compilation unit. Entities must have |
| * a public/protected no-arg constructor, and there is no way to access |
| * the constructor in a package class (which is what all top-level, |
| * non-primary classes must be). |
| */ |
| private JavaResourcePersistentType persistentType; |
| |
| |
| // ********** construction ********** |
| |
| public SourceTypeCompilationUnit( |
| ICompilationUnit compilationUnit, |
| JpaAnnotationProvider annotationProvider, |
| AnnotationEditFormatter annotationEditFormatter, |
| CommandExecutor modifySharedDocumentCommandExecutor) { |
| super(compilationUnit, annotationProvider, annotationEditFormatter, modifySharedDocumentCommandExecutor); // the JPA compilation unit is the root of its sub-tree |
| this.persistentType = this.buildPersistentType(); |
| } |
| |
| private JavaResourcePersistentType buildPersistentType() { |
| this.openCompilationUnit(); |
| CompilationUnit astRoot = this.buildASTRoot(); |
| this.closeCompilationUnit(); |
| return this.buildPersistentType(astRoot); |
| } |
| |
| |
| // ********** JavaResourceNode implementation ********** |
| |
| public void synchronizeWith(CompilationUnit astRoot) { |
| this.syncPersistentType(astRoot); |
| } |
| |
| |
| // ********** JavaResourceNode.Root implementation ********** |
| |
| /** |
| * NB: return *all* the persistent types since we build them all |
| */ |
| public Iterator<JavaResourcePersistentType> persistentTypes() { |
| return (this.persistentType == null) ? |
| EmptyIterator.<JavaResourcePersistentType>instance() : |
| this.persistentType.allTypes(); |
| } |
| |
| |
| // ********** JptResourceModel implementation ********** |
| |
| public JptResourceType getResourceType() { |
| return JptCommonCorePlugin.JAVA_SOURCE_RESOURCE_TYPE; |
| } |
| |
| |
| // ********** JavaResourceCompilationUnit implementation ********** |
| |
| public void resolveTypes() { |
| if (this.persistentType != null) { |
| this.persistentType.resolveTypes(this.buildASTRoot()); |
| } |
| } |
| |
| |
| // ********** persistent type ********** |
| |
| private JavaResourcePersistentType buildPersistentType(CompilationUnit astRoot) { |
| TypeDeclaration td = this.getPrimaryTypeDeclaration(astRoot); |
| return (td == null) ? null : this.buildPersistentType(astRoot, td); |
| } |
| |
| |
| private void syncPersistentType(CompilationUnit astRoot) { |
| TypeDeclaration td = this.getPrimaryTypeDeclaration(astRoot); |
| if (td == null) { |
| this.syncPersistentType_(null); |
| } else { |
| if (this.persistentType == null) { |
| this.syncPersistentType_(this.buildPersistentType(astRoot, td)); |
| } else { |
| this.persistentType.synchronizeWith(astRoot); |
| } |
| } |
| } |
| |
| private void syncPersistentType_(JavaResourcePersistentType astPersistentType) { |
| JavaResourcePersistentType old = this.persistentType; |
| this.persistentType = astPersistentType; |
| this.firePropertyChanged(PERSISTENT_TYPES_COLLECTION, old, astPersistentType); |
| } |
| |
| |
| // ********** internal ********** |
| |
| private JavaResourcePersistentType buildPersistentType(CompilationUnit astRoot, TypeDeclaration typeDeclaration) { |
| return SourcePersistentType.newInstance(this, typeDeclaration, astRoot); |
| } |
| |
| /** |
| * i.e. the type with the same name as the compilation unit; |
| * return the first class or interface (ignore annotations and enums) with |
| * the same name as the compilation unit (file); |
| * NB: this type could be in error if there is an annotation or enum |
| * with the same name preceding it in the compilation unit |
| * |
| * Return null if the parser did not resolve the type declaration's binding. |
| * This can occur if the project JRE is removed (bug 225332). |
| */ |
| private TypeDeclaration getPrimaryTypeDeclaration(CompilationUnit astRoot) { |
| String primaryTypeName = this.getPrimaryTypeName(); |
| for (AbstractTypeDeclaration atd : this.types(astRoot)) { |
| if (this.nodeIsPrimaryTypeDeclaration(atd, primaryTypeName)) { |
| return (atd.resolveBinding() == null) ? null : (TypeDeclaration) atd; |
| } |
| } |
| return null; |
| } |
| |
| private boolean nodeIsPrimaryTypeDeclaration(AbstractTypeDeclaration atd, String primaryTypeName) { |
| return (atd.getNodeType() == ASTNode.TYPE_DECLARATION) && |
| atd.getName().getFullyQualifiedName().equals(primaryTypeName); |
| } |
| |
| private String getPrimaryTypeName() { |
| return this.getCompilationUnitName(); |
| } |
| |
| // minimize scope of suppressed warnings |
| @SuppressWarnings("unchecked") |
| private List<AbstractTypeDeclaration> types(CompilationUnit astRoot) { |
| return astRoot.types(); |
| } |
| } |