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1 package org.hibernate.tuple;
3
4 import java.io.Serializable  ;
5
6 import org.hibernate.EntityMode;
7 import org.hibernate.HibernateException;
8 import org.hibernate.util.ReflectHelper;
9 import org.hibernate.mapping.Component;
10 import org.hibernate.mapping.PersistentClass;
11
12
18 public class TuplizerLookup implements Serializable {
19
20 private static final Class [] ENTITY_TUP_CTOR_SIG = new Class [] { EntityMetamodel.class, PersistentClass.class };
21 private static final Class [] COMPONENT_TUP_CTOR_SIG = new Class [] { Component.class };
22
23 private final Tuplizer pojoTuplizer;
24 private final Tuplizer dynamicMapTuplizer;
25 private final Tuplizer dom4jTuplizer;
26
27
34 private TuplizerLookup(Tuplizer pojoTuplizer, Tuplizer dynamicMapTuplizer, Tuplizer dom4jTuplizer) {
35 this.pojoTuplizer = pojoTuplizer;
36 this.dynamicMapTuplizer = dynamicMapTuplizer;
37 this.dom4jTuplizer = dom4jTuplizer;
38 }
39
40
48 public static TuplizerLookup create(PersistentClass mappedEntity, EntityMetamodel em) {
49 Tuplizer dynamicMapTuplizer = null;
51 String tuplizerImpl = mappedEntity.getTuplizerImplClassName( EntityMode.MAP );
52 if ( tuplizerImpl == null ) {
53 dynamicMapTuplizer = new DynamicMapEntityTuplizer( em, mappedEntity );
54 }
55 else {
56 dynamicMapTuplizer = buildEntityTuplizer( tuplizerImpl, mappedEntity, em );
57 }
58
59 Tuplizer pojoTuplizer = null;
61 if ( mappedEntity.hasPojoRepresentation() ) {
62 tuplizerImpl = mappedEntity.getTuplizerImplClassName( EntityMode.POJO );
63 if ( tuplizerImpl == null ) {
64 pojoTuplizer = new PojoEntityTuplizer( em, mappedEntity );
65 }
66 else {
67 pojoTuplizer = buildEntityTuplizer( tuplizerImpl, mappedEntity, em );
68 }
69 }
70 else {
71 pojoTuplizer = dynamicMapTuplizer;
72 }
73
74 Tuplizer dom4jTuplizer = null;
76 if ( mappedEntity.hasDom4jRepresentation() ) {
77 tuplizerImpl = mappedEntity.getTuplizerImplClassName( EntityMode.DOM4J );
78 if ( tuplizerImpl == null ) {
79 dom4jTuplizer = new Dom4jEntityTuplizer( em, mappedEntity );
80 }
81 else {
82 dom4jTuplizer = buildEntityTuplizer( tuplizerImpl, mappedEntity, em );
83 }
84 }
85 else {
86 dom4jTuplizer = null;
87 }
88
89 return new TuplizerLookup( pojoTuplizer, dynamicMapTuplizer, dom4jTuplizer );
90 }
91
92 private static EntityTuplizer buildEntityTuplizer(String className, PersistentClass pc, EntityMetamodel em) {
93 try {
94 Class implClass = ReflectHelper.classForName( className );
95 return ( EntityTuplizer ) implClass.getConstructor( ENTITY_TUP_CTOR_SIG ).newInstance( new Object [] { em, pc } );
96 }
97 catch( Throwable t ) {
98 throw new HibernateException( "Could not build tuplizer [" + className + "]", t );
99 }
100 }
101
102
108 public static TuplizerLookup create(Component component) {
109 PersistentClass owner = component.getOwner();
110
111 Tuplizer dynamicMapTuplizer = null;
113 String tuplizerImpl = component.getTuplizerImplClassName( EntityMode.MAP );
114 if ( tuplizerImpl == null ) {
115 dynamicMapTuplizer = new DynamicMapComponentTuplizer( component );
116 }
117 else {
118 dynamicMapTuplizer = buildComponentTuplizer( tuplizerImpl, component );
119 }
120
121 Tuplizer pojoTuplizer = null;
123 if ( owner.hasPojoRepresentation() && component.hasPojoRepresentation() ) {
124 tuplizerImpl = component.getTuplizerImplClassName( EntityMode.POJO );
125 if ( tuplizerImpl == null ) {
126 pojoTuplizer = new PojoComponentTuplizer( component );
127 }
128 else {
129 pojoTuplizer = buildComponentTuplizer( tuplizerImpl, component );
130 }
131 }
132 else {
133 pojoTuplizer = dynamicMapTuplizer;
134 }
135
136 Tuplizer dom4jTuplizer = null;
138 if ( owner.hasDom4jRepresentation() ) {
139 tuplizerImpl = component.getTuplizerImplClassName( EntityMode.DOM4J );
140 if ( tuplizerImpl == null ) {
141 dom4jTuplizer = new Dom4jComponentTuplizer( component );
142 }
143 else {
144 dom4jTuplizer = buildComponentTuplizer( tuplizerImpl, component );
145 }
146 }
147 else {
148 dom4jTuplizer = null;
149 }
150
151 return new TuplizerLookup( pojoTuplizer, dynamicMapTuplizer, dom4jTuplizer );
152 }
153
154 private static ComponentTuplizer buildComponentTuplizer(String tuplizerImpl, Component component) {
155 try {
156 Class implClass = ReflectHelper.classForName( tuplizerImpl );
157 return ( ComponentTuplizer ) implClass.getConstructor( COMPONENT_TUP_CTOR_SIG ).newInstance( new Object [] { component } );
158 }
159 catch( Throwable t ) {
160 throw new HibernateException( "Could not build tuplizer [" + tuplizerImpl + "]", t );
161 }
162
163 }
164
165
171 public EntityMode guessEntityMode(Object object) {
172 if ( pojoTuplizer != null && pojoTuplizer.isInstance(object) ) {
173 return EntityMode.POJO;
174 }
175
176 if ( dom4jTuplizer != null && dom4jTuplizer.isInstance(object) ) {
177 return EntityMode.DOM4J;
178 }
179
180 if ( dynamicMapTuplizer != null && dynamicMapTuplizer.isInstance(object) ) {
181 return EntityMode.MAP;
182 }
183
184 return null; }
186
187
194 public Tuplizer getTuplizerOrNull(EntityMode entityMode) {
195 Tuplizer rtn = null;
196 if ( EntityMode.POJO == entityMode ) {
197 rtn = pojoTuplizer;
198 }
199 else if ( EntityMode.DOM4J == entityMode ) {
200 rtn = dom4jTuplizer;
201 }
202 else if ( EntityMode.MAP == entityMode ) {
203 rtn = dynamicMapTuplizer;
204 }
205
206 return rtn;
207 }
208
209
217 public Tuplizer getTuplizer(EntityMode entityMode) {
218 Tuplizer rtn = getTuplizerOrNull( entityMode );
219
220 if ( rtn == null ) {
221 throw new HibernateException( "No tuplizer found for entity-mode [" + entityMode + "]");
222 }
223
224 return rtn;
225 }
226
227 }
228 |
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