001 /**
002 * GRANITE DATA SERVICES
003 * Copyright (C) 2006-2013 GRANITE DATA SERVICES S.A.S.
004 *
005 * This file is part of the Granite Data Services Platform.
006 *
007 * Granite Data Services is free software; you can redistribute it and/or
008 * modify it under the terms of the GNU Lesser General Public
009 * License as published by the Free Software Foundation; either
010 * version 2.1 of the License, or (at your option) any later version.
011 *
012 * Granite Data Services is distributed in the hope that it will be useful,
013 * but WITHOUT ANY WARRANTY; without even the implied warranty of
014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
015 * General Public License for more details.
016 *
017 * You should have received a copy of the GNU Lesser General Public
018 * License along with this library; if not, write to the Free Software
019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
020 * USA, or see <http://www.gnu.org/licenses/>.
021 */
022
023 package org.granite.generator.as3;
024
025 import java.lang.annotation.Annotation;
026 import java.lang.reflect.Field;
027 import java.lang.reflect.Method;
028 import java.net.URL;
029
030 import javax.jdo.annotations.PersistenceCapable;
031 import javax.jdo.annotations.Persistent;
032 import javax.jdo.annotations.PrimaryKey;
033 import javax.persistence.EmbeddedId;
034 import javax.persistence.Entity;
035 import javax.persistence.FetchType;
036 import javax.persistence.Id;
037 import javax.persistence.ManyToMany;
038 import javax.persistence.ManyToOne;
039 import javax.persistence.MappedSuperclass;
040 import javax.persistence.OneToMany;
041 import javax.persistence.OneToOne;
042 import javax.persistence.Version;
043
044 import org.granite.generator.as3.reflect.JavaBean;
045 import org.granite.generator.as3.reflect.JavaEntityBean;
046 import org.granite.generator.as3.reflect.JavaFieldProperty;
047 import org.granite.generator.as3.reflect.JavaProperty;
048 import org.granite.generator.as3.reflect.JavaType;
049 import org.granite.generator.as3.reflect.JavaTypeFactory;
050
051
052 public class DefaultEntityFactory implements EntityFactory {
053
054 @Override
055 public boolean isEntity(Class<?> clazz) {
056 return clazz.isAnnotationPresent(Entity.class) ||
057 clazz.isAnnotationPresent(MappedSuperclass.class) ||
058 clazz.isAnnotationPresent(PersistenceCapable.class);
059 }
060
061 @Override
062 public JavaType newBean(JavaTypeFactory provider, Class<?> type, URL url) {
063 return new JavaBean(provider, type, url);
064 }
065
066 @Override
067 public JavaType newEntity(JavaTypeFactory provider, Class<?> type, URL url) {
068 return new JavaEntityBean(provider, type, url);
069 }
070
071 @Override
072 public boolean isId(JavaFieldProperty fieldProperty) {
073 Field field = fieldProperty.getMember();
074 Method getter = (fieldProperty.getReadMethod() != null ? fieldProperty.getReadMethod().getMember() : null);
075 Method setter = (fieldProperty.getWriteMethod() != null ? fieldProperty.getWriteMethod().getMember() : null);
076
077 if (field.isAnnotationPresent(Persistent.class)) {
078 Annotation annotation = field.getAnnotation(Persistent.class);
079 if (annotation instanceof Persistent) {
080 Persistent persistAnnotation = (Persistent)annotation;
081 String pk = persistAnnotation.primaryKey();
082 if (pk != null && pk.toLowerCase().equals("true"))
083 return true;
084 }
085 if (field.isAnnotationPresent(PrimaryKey.class))
086 return true;
087 }
088
089 return
090 (field.isAnnotationPresent(Id.class) || field.isAnnotationPresent(EmbeddedId.class)) ||
091 (getter != null && (getter.isAnnotationPresent(Id.class) || getter.isAnnotationPresent(EmbeddedId.class))) ||
092 (setter != null && (setter.isAnnotationPresent(Id.class) || setter.isAnnotationPresent(EmbeddedId.class)));
093 }
094
095 @Override
096 public boolean isVersion(JavaProperty property) {
097 if (property.isAnnotationPresent(Version.class))
098 return true;
099
100 if (property.getType().isAnnotationPresent(javax.jdo.annotations.Version.class)) {
101 // Get JDO version field using specific DataNucleus extension
102 javax.jdo.annotations.Version versionAnnotation = property.getType().getAnnotation(javax.jdo.annotations.Version.class);
103 javax.jdo.annotations.Extension[] extensions = versionAnnotation.extensions();
104 for (javax.jdo.annotations.Extension extension : extensions) {
105 if ("datanucleus".equals(extension.vendorName()) && "field-name".equals(extension.key()))
106 return property.getName().equals(extension.value());
107 }
108 }
109 return false;
110 }
111
112 @Override
113 public boolean isLazy(JavaProperty property) {
114 if (property.isAnnotationPresent(ManyToOne.class)) {
115 ManyToOne manyToOne = property.getAnnotation(ManyToOne.class);
116 return manyToOne.fetch().equals(FetchType.LAZY);
117 }
118 else if (property.isAnnotationPresent(OneToOne.class)) {
119 OneToOne oneToOne = property.getAnnotation(OneToOne.class);
120 return oneToOne.fetch().equals(FetchType.LAZY);
121 }
122 else if (property.isAnnotationPresent(OneToMany.class)) {
123 OneToMany oneToMany = property.getAnnotation(OneToMany.class);
124 return oneToMany.fetch().equals(FetchType.LAZY);
125 }
126 else if (property.isAnnotationPresent(ManyToMany.class)) {
127 ManyToMany manyToMany = property.getAnnotation(ManyToMany.class);
128 return manyToMany.fetch().equals(FetchType.LAZY);
129 }
130 return false;
131 }
132 }