/*******************************************************************************
* Copyright (c) 2006, 2013 Oracle and/or its affiliates. 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.persistence.jpa.jpql.spi.java;
import java.lang.reflect.Constructor;
import java.lang.reflect.Type;
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 a Java constructor.
*
* @version 2.4
* @since 2.3
* @author Pascal Filion
*/
public class JavaConstructor implements IConstructor {
/**
* The actual Java constructor.
*/
private Constructor<?> constructor;
/**
* The cached {@link ITypeDeclaration parameter types}.
*/
private ITypeDeclaration[] parameterTypes;
/**
* The declaring type of this constructor.
*/
private JavaType type;
/**
* Creates a new <code>JavaConstructor</code>.
*
* @param type The declaring type of this constructor
* @param constructor The actual Java constructor
*/
public JavaConstructor(JavaType type, Constructor<?> constructor) {
super();
this.type = type;
this.constructor = constructor;
}
protected ITypeDeclaration[] buildParameterTypes() {
Class<?>[] types = constructor.getParameterTypes();
Type[] genericTypes = constructor.getGenericParameterTypes();
ITypeDeclaration[] typeDeclarations = new ITypeDeclaration[types.length];
for (int index = 0, count = types.length; index < count; index++) {
typeDeclarations[index] = buildTypeDeclaration(types[index], genericTypes[index]);
}
return typeDeclarations;
}
protected ITypeDeclaration buildTypeDeclaration(Class<?> javaType, Type genericType) {
ITypeRepository typeRepository = getTypeRepository();
IType type = typeRepository.getType(javaType);
return new JavaTypeDeclaration(typeRepository, type, genericType, javaType.isArray());
}
/**
* {@inheritDoc}
*/
public ITypeDeclaration[] getParameterTypes() {
if (parameterTypes == null) {
parameterTypes = buildParameterTypes();
}
return parameterTypes;
}
protected ITypeRepository getTypeRepository() {
return type.getTypeRepository();
}
/**
* {@inheritDoc}
*/
@Override
public String toString() {
return constructor.toGenericString();
}
}