/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Rodrigo Westrupp
*/
package com.caucho.amber.cfg;
import com.caucho.amber.type.EmbeddableType;
import com.caucho.config.ConfigException;
import com.caucho.util.L10N;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.logging.Logger;
import javax.persistence.Basic;
import javax.persistence.Column;
/**
* Configuration for an embeddable type
*/
public class EmbeddableIntrospector extends BaseConfigIntrospector {
private static final L10N L = new L10N(EmbeddableIntrospector.class);
private static final Logger log
= Logger.getLogger(EmbeddableIntrospector.class.getName());
HashMap<String, EmbeddableType> _embeddableMap
= new HashMap<String, EmbeddableType>();
/**
* Creates the introspector.
*/
public EmbeddableIntrospector(AmberConfigManager configManager)
{
super(configManager);
}
/**
* Returns true for embeddable type.
*/
public boolean isEmbeddable(Class type)
{
getInternalEmbeddableConfig(type, _annotationCfg);
Annotation embeddableAnn = _annotationCfg.getAnnotation();
EmbeddableConfig embeddableConfig = _annotationCfg.getEmbeddableConfig();
return (! _annotationCfg.isNull());
}
/**
* Introspects.
*/
public EmbeddableType introspect(Class type)
throws ConfigException, SQLException
{
getInternalEmbeddableConfig(type, _annotationCfg);
Annotation embeddableAnn = _annotationCfg.getAnnotation();
EmbeddableConfig embeddableConfig = _annotationCfg.getEmbeddableConfig();
String typeName = type.getName();
EmbeddableType embeddableType = _embeddableMap.get(typeName);
if (embeddableType != null)
return embeddableType;
try {
embeddableType = _persistenceUnit.createEmbeddable(typeName, type);
_embeddableMap.put(typeName, embeddableType);
boolean isField = isField(type, embeddableConfig);
if (isField)
embeddableType.setFieldAccess(true);
// XXX: jpa/0u21
Annotation ann = type.getAnnotation(javax.persistence.Embeddable.class);
if (ann == null) {
isField = true;
embeddableType.setIdClass(true);
_persistenceUnit.getAmberContainer().addEmbeddable(typeName,
embeddableType);
}
embeddableType.setInstanceClassName(type.getName() +
"__ResinExt");
embeddableType.setEnhanced(true);
if (isField)
introspectFields(_persistenceUnit, embeddableType, null,
type, embeddableConfig, true);
else
introspectMethods(_persistenceUnit, embeddableType, null,
type, embeddableConfig);
} catch (ConfigException e) {
if (embeddableType != null)
embeddableType.setConfigException(e);
throw e;
} catch (RuntimeException e) {
if (embeddableType != null)
embeddableType.setConfigException(e);
throw e;
}
return embeddableType;
}
boolean isField(Class type,
AbstractEnhancedConfig typeConfig)
throws ConfigException
{
for (Method method : type.getDeclaredMethods()) {
Annotation ann[] = method.getDeclaredAnnotations();
for (int i = 0; ann != null && i < ann.length; i++) {
if (isPropertyAnnotation(ann[i]))
return false;
}
}
return true;
}
private boolean isPropertyAnnotation(Annotation ann)
{
return (ann instanceof Basic || ann instanceof Column);
}
}