| /******************************************************************************* |
| * Copyright (c) 2011 Oracle. All rights reserved. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 |
| * which accompanies this distribution. |
| * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html |
| * and the Eclipse Distribution License is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| * |
| ******************************************************************************/ |
| package org.eclipse.jpt.jpa.core.jpql.spi; |
| |
| import org.eclipse.jdt.core.dom.IMethodBinding; |
| import org.eclipse.jdt.core.dom.ITypeBinding; |
| import org.eclipse.persistence.jpa.jpql.spi.IConstructor; |
| import org.eclipse.persistence.jpa.jpql.spi.IType; |
| import org.eclipse.persistence.jpa.jpql.spi.ITypeDeclaration; |
| import org.eclipse.persistence.jpa.jpql.spi.ITypeRepository; |
| |
| /** |
| * The concrete implementation of {@link IConstructor} that is wrapping the design-time |
| * representation of a Java constructor. |
| * |
| * Provisional API: This interface is part of an interim API that is still under development and |
| * expected to change significantly before reaching stability. It is available at this early stage |
| * to solicit feedback from pioneering adopters on the understanding that any code that uses this |
| * API will almost certainly be broken (repeatedly) as the API evolves. |
| * |
| * @version 3.1 |
| * @since 3.0 |
| * @author Pascal Filion |
| */ |
| public class JpaConstructor implements IConstructor { |
| |
| /** |
| * The design-time representation of a Java constructor. |
| */ |
| private IMethodBinding constructor; |
| |
| /** |
| * The cached {@link ITypeDeclaration ITypeDeclarations} representing each of the constructor's |
| * parameter types. |
| */ |
| private ITypeDeclaration[] typeDeclarations; |
| |
| /** |
| * The type owning this constructor. |
| */ |
| private JpaType type; |
| |
| /** |
| * Creates a new <code>JpaConstructor</code>. |
| * |
| * @param type The type owning the constructor |
| * @param constructor The design-time representation of a Java constructor |
| */ |
| public JpaConstructor(JpaType type, IMethodBinding constructor) { |
| super(); |
| this.type = type; |
| this.constructor = constructor; |
| } |
| |
| protected ITypeDeclaration buildTypeDeclaration(ITypeBinding parameterType) { |
| |
| boolean array = parameterType.isArray(); |
| String typeParameterName; |
| |
| if (array) { |
| ITypeBinding componentType = parameterType.getComponentType(); |
| |
| // <T>[] or <? extends <class_name>>[] |
| if (componentType.isTypeVariable() || |
| componentType.isParameterizedType()) { |
| |
| typeParameterName = componentType.getErasure().getQualifiedName(); |
| } |
| else { |
| typeParameterName = componentType.getQualifiedName(); |
| } |
| |
| // Now for the type arguments, we have to use the component type |
| parameterType = componentType; |
| } |
| // <T> or <? extends <class_name>> |
| else if (parameterType.isTypeVariable() || |
| parameterType.isParameterizedType()) { |
| |
| typeParameterName = parameterType.getErasure().getQualifiedName(); |
| } |
| else { |
| typeParameterName = parameterType.getQualifiedName(); |
| } |
| |
| // Retrieve the fully qualified name of the type |
| ITypeRepository typeRepository = type.getTypeRepository(); |
| ITypeBinding[] typeArguments = parameterType.getTypeArguments(); |
| ITypeDeclaration[] genericTypes = new ITypeDeclaration[typeArguments.length]; |
| int index = 0; |
| |
| for (ITypeBinding typeArgument : typeArguments) { |
| String genericTypeName = typeArgument.getErasure().getQualifiedName(); |
| IType genericType = typeRepository.getType(genericTypeName); |
| genericTypes[index++] = genericType.getTypeDeclaration(); |
| } |
| |
| return new JpaTypeDeclaration( |
| typeRepository.getType(typeParameterName), |
| genericTypes, |
| parameterType.getDimensions() |
| ); |
| } |
| |
| protected ITypeDeclaration[] buildTypeDeclarations() { |
| |
| ITypeBinding[] parameterTypes = constructor.getParameterTypes(); |
| ITypeDeclaration[] declarations = new ITypeDeclaration[parameterTypes.length]; |
| |
| for (int index = declarations.length; --index >= 0; ) { |
| declarations[index] = buildTypeDeclaration(parameterTypes[index]); |
| } |
| |
| return declarations; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public ITypeDeclaration[] getParameterTypes() { |
| if (typeDeclarations == null) { |
| typeDeclarations = buildTypeDeclarations(); |
| } |
| return typeDeclarations; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public String toString() { |
| return constructor.toString(); |
| } |
| } |