October 2013 - Topia-devel - mailman.cloud.codelutin.com

Pourquoi les getters ne renverraient pas une collection vide ?
by Brendan Le Ny Nov. 24, 2014

Nov. 24, 2014

Actuellement, une propriété avec une multiplicité renvoie une collection null si on appelle le getter, pourquoi ne pas initialiser cette collection en lazy (on le fait bien dans le add) ? Voire même, pourquoi pas interdire d'appeler le setter avec null (sauf si Hibernate l'impose) ? Il me semblait y avoir une raison mais elle ne me revient plus. -- Brendan Le Ny, Code Lutin bleny(a)codelutin.com (+33) 02 40 50 29 28

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[ANN] - ToPIA 3.0-alpha-3.1 released
by Tony Chemit Oct. 31, 2013

Oct. 31, 2013

The ToPIA team is pleased to announce the topia-3.0-alpha-3.1 release! Tools for Portable and Independent Architecture : Framework de persistance et de distribution d'application. Documentation of the project can be found here: http://maven-site.nuiton.org/topia Changes ------- Changes in this version include: Fixed Bugs: o Hibernate factory is closed by a child context Issue: 2882. Thanks to Tony Chemit. Resolved by tchemit. Downloads --------- No release file deployed. (all files are deployed in the maven repository) Maven artifacts --------------- Artifacts are deployed in Maven Central Repository http://repo1.maven.org/maven2/ Find us at * http://search.maven.org/#artifactdetails|org.nuiton.topia|3.0-alpha-3.1|jar Have fun! -ToPIA team tony.

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Fwd: [Topia-commits] r2845 - in trunk/topia-persistence/src: main/java/org/nuiton/topia main/java/org/nuiton/topia/generator main/java/org/nuiton/topia/persistence test/java/org/nuiton/topia test/java/org/nuiton/topia/generator test/java/org/nuiton/topia/persistence
by Arnaud Thimel Oct. 15, 2013

Oct. 15, 2013

Hello, Brendan, pourquoi as-tu fait les modifs suivantes : /*{ - E result = <%=methodToDelegateName%>(v).findAnyOrNull(); - return result; + return <%=methodToDelegateName%>(v).findAnyOrNull(); }*/ À mon sens, cela nuit à la lisibilité du code généré. Faire des instructions sur le return, on a toujours dit que c'était déconseillé car ça complexifie le débuggage. Bref, je suis pas pour du tout cette modification, mais j'imagine que tu l'as fait pour une bonne raison, quelle est-elle ? Merci, Arnaud -------- Message original -------- Sujet: [Topia-commits] r2845 - in trunk/topia-persistence/src: main/java/org/nuiton/topia main/java/org/nuiton/topia/generator main/java/org/nuiton/topia/persistence test/java/org/nuiton/topia test/java/org/nuiton/topia/generator test/java/org/nuiton/topia/persistence Date : Tue, 15 Oct 2013 17:08:17 +0200 (CEST) De : bleny(a)users.nuiton.org Répondre à : topia-commits(a)list.nuiton.org Pour : topia-commits(a)list.nuiton.org Author: bleny Date: 2013-10-15 17:08:16 +0200 (Tue, 15 Oct 2013) New Revision: 2845 Url: http://nuiton.org/projects/topia/repository/revisions/2845 Log: update tests and change contract for generated dao factories Modified: trunk/topia-persistence/src/main/java/org/nuiton/topia/AbstractTopiaPersistenceContext.java trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/EntityDAOTransformer.java trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/PersistenceContextTransformer.java trunk/topia-persistence/src/main/java/org/nuiton/topia/persistence/AbstractTopiaDAO.java trunk/topia-persistence/src/test/java/org/nuiton/topia/TopiaJpaSupportTest.java trunk/topia-persistence/src/test/java/org/nuiton/topia/generator/TopiaTestCase.java trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/EntityVisitorExportXmlTest.java trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/NaturalIdTest.java trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/TopiaDAOTest.java Modified: trunk/topia-persistence/src/main/java/org/nuiton/topia/AbstractTopiaPersistenceContext.java =================================================================== --- trunk/topia-persistence/src/main/java/org/nuiton/topia/AbstractTopiaPersistenceContext.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/main/java/org/nuiton/topia/AbstractTopiaPersistenceContext.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -257,7 +257,7 @@ // Looking for specialized DAO // This DAO is supposed to exist, as created by generation - String daoClassName = entityClass.getName() + "DAO"; + String daoClassName = entityClass.getName() + "TopiaDao"; try { Class<TopiaDAO<E>> daoClass = (Class<TopiaDAO<E>>) Class.forName(daoClassName); dao = daoClass.getConstructor().newInstance(); Modified: trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/EntityDAOTransformer.java =================================================================== --- trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/EntityDAOTransformer.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/EntityDAOTransformer.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -873,8 +873,7 @@ addParameter(op, attrType, "v"); setOperationBody(op, "" /*{ - E result = <%=methodToDelegateName%>(v).findAnyOrNull(); - return result; + return <%=methodToDelegateName%>(v).findAnyOrNull(); }*/ ); @@ -887,8 +886,7 @@ addParameter(op, attrType, "v"); setOperationBody(op, "" /*{ - List<E> result = <%=methodToDelegateName%>(v).findAll(); - return result; + return <%=methodToDelegateName%>(v).findAll(); }*/ ); @@ -956,8 +954,7 @@ addParameter(op, attrType, "v"); setOperationBody(op, "" /*{ - E result = <%=methodToDelegateName%>(v).findAnyOrNull(); - return result; + return <%=methodToDelegateName%>(v).findAnyOrNull(); }*/ ); @@ -970,8 +967,7 @@ addParameter(op, attrType, "v"); setOperationBody(op, "" /*{ - List<E> result = <%=methodToDelegateName%>(v).findAll(); - return result; + return <%=methodToDelegateName%>(v).findAll(); }*/ ); Modified: trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/PersistenceContextTransformer.java =================================================================== --- trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/PersistenceContextTransformer.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/main/java/org/nuiton/topia/generator/PersistenceContextTransformer.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -176,10 +176,13 @@ for (ObjectModelClass clazz : entityClasses) { String clazzName = clazz.getName(); - String daoClazzName = clazzName + "DAO"; + // TODO brendan 14/10/13 use method + String daoContractName = clazzName + "Dao"; + String daoClazzName = TopiaGeneratorUtil.getConcreteDaoName(clazz); + // specialized getXXXDao method - op = addOperation(output, "get" + daoClazzName, clazz.getPackageName() + '.' + daoClazzName); + op = addOperation(output, "get" + daoContractName, clazz.getPackageName() + '.' + daoClazzName); addImport(output, clazz); setOperationBody(op, "" /*{ Modified: trunk/topia-persistence/src/main/java/org/nuiton/topia/persistence/AbstractTopiaDAO.java =================================================================== --- trunk/topia-persistence/src/main/java/org/nuiton/topia/persistence/AbstractTopiaDAO.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/main/java/org/nuiton/topia/persistence/AbstractTopiaDAO.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -37,6 +37,7 @@ package org.nuiton.topia.persistence; +import com.google.common.base.Optional; import com.google.common.base.Preconditions; import com.google.common.collect.Iterables; import com.google.common.collect.Iterators; @@ -295,12 +296,6 @@ return result; } - /** - * Cette methode appelle fireVetoableCreate et fireOnCreated Si vous la - * surchargé, faites attention a appeler le super ou a appeler vous aussi - * ces deux methodes. - */ - public E create(Map<String, Object> properties) { E result = newInstance(); @@ -327,6 +322,11 @@ return result; } + public E create() { + E result = newInstance(); + create(result); + return result; + } public E update(E e) { try { @@ -570,6 +570,18 @@ return getNextStep().findFirstOrNull(); } + public Optional<E> tryFindAny() { + return getNextStep().tryFindAny(); + } + + public Optional<E> tryFindFirst() { + return getNextStep().tryFindFirst(); + } + + public Optional<E> tryFindUnique() { + return getNextStep().tryFindUnique(); + } + public List<E> findAll() { return getNextStep().findAll(); } @@ -634,6 +646,10 @@ return topiaDAO.findUniqueOrNull(hql, hqlParameters); } + public Optional<E> tryFindUnique() { + return topiaDAO.tryFindUnique(hql, hqlParameters); + } + public E findFirst() { return topiaDAO.findFirst(hql, hqlParameters); } @@ -642,6 +658,10 @@ return topiaDAO.findFirstOrNull(hql, hqlParameters); } + public Optional<E> tryFindFirst() { + return topiaDAO.tryFindFirst(hql, hqlParameters); + } + public E findAny() { return topiaDAO.findAny(hql, hqlParameters); } @@ -650,6 +670,10 @@ return topiaDAO.findAnyOrNull(hql, hqlParameters); } + public Optional<E> tryFindAny() { + return topiaDAO.tryFindAny(hql, hqlParameters); + } + public List<E> findAll() { return topiaDAO.findAll(hql, hqlParameters); } @@ -698,6 +722,11 @@ return uniqueOrNull; } + protected Optional<E> tryFindUnique(String hql, Map<String, Object> hqlParameters) { + Optional<E> uniqueOrNull = tryFindUnique(hql, hqlParameters, getEntityClass()); + return uniqueOrNull; + } + protected E findFirst(String hql, Map<String, Object> hqlParameters) { E firstOrNull = findFirst(hql, hqlParameters, getEntityClass()); return firstOrNull; @@ -708,6 +737,11 @@ return anyOrNull; } + protected Optional<E> tryFindFirst(String hql, Map<String, Object> hqlParameters) { + Optional<E> anyOrNull = tryFindFirst(hql, hqlParameters, getEntityClass()); + return anyOrNull; + } + protected E findAny(String hql, Map<String, Object> hqlParameters) { E anyOrNull = findAny(hql, hqlParameters, getEntityClass()); return anyOrNull; @@ -718,6 +752,11 @@ return anyOrNull; } + protected Optional<E> tryFindAny(String hql, Map<String, Object> hqlParameters) { + Optional<E> anyOrNull = tryFindAny(hql, hqlParameters, getEntityClass()); + return anyOrNull; + } + protected <R> R findUnique(String hql, Map<String, Object> hqlParameters, Class<R> type) { R uniqueOrNull = findUniqueOrNull(hql, hqlParameters, type); if (uniqueOrNull == null) { @@ -727,6 +766,11 @@ return uniqueOrNull; } + protected <R> Optional<R> tryFindUnique(String hql, Map<String, Object> hqlParameters, Class<R> type) { + R uniqueOrNull = findUniqueOrNull(hql, hqlParameters, type); + return Optional.fromNullable(uniqueOrNull); + } + protected <R> R findUniqueOrNull(String hql, Map<String, Object> hqlParameters, Class<R> type) { List<R> results = findAll(hql, hqlParameters, type, 0, 1); // If there is more than 1 result, throw an exception @@ -750,6 +794,11 @@ return firstOrNull; } + protected <R> Optional<R> tryFindFirst(String hql, Map<String, Object> hqlParameters, Class<R> type) { + R firstOrNull = findFirstOrNull(hql, hqlParameters, type); + return Optional.fromNullable(firstOrNull); + } + protected <R> R findFirstOrNull(String hql, Map<String, Object> hqlParameters, Class<R> type) { Preconditions.checkArgument(hql.toLowerCase().contains("order by")); R anyOrNull = findAnyOrNull(hql, hqlParameters, type); @@ -765,6 +814,11 @@ return anyOrNull; } + protected <R> Optional<R> tryFindAny(String hql, Map<String, Object> hqlParameters, Class<R> type) { + R anyOrNull = findAnyOrNull(hql, hqlParameters, type); + return Optional.fromNullable(anyOrNull); + } + protected <R> R findAnyOrNull(String hql, Map<String, Object> hqlParameters, Class<R> type) { Preconditions.checkNotNull(hql); Preconditions.checkNotNull(hqlParameters); Modified: trunk/topia-persistence/src/test/java/org/nuiton/topia/TopiaJpaSupportTest.java =================================================================== --- trunk/topia-persistence/src/test/java/org/nuiton/topia/TopiaJpaSupportTest.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/test/java/org/nuiton/topia/TopiaJpaSupportTest.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -23,8 +23,6 @@ */ package org.nuiton.topia; -import java.util.List; - import org.junit.Assert; import org.junit.Before; import org.junit.Rule; @@ -35,6 +33,8 @@ import org.nuiton.topiatest.Personne; import org.nuiton.topiatest.PersonneDAO; +import java.util.List; + /** * Tests the TopiaContext#find|findAll|findUnique methods * @@ -56,8 +56,8 @@ persistenceContext = db.beginTransaction(); jpaSupport = persistenceContext.jpaSupport; - personneDAO = persistenceContext.getPersonneDAO(); - addressDAO = persistenceContext.getAddressDAO(); + personneDAO = persistenceContext.getPersonneDao(); + addressDAO = persistenceContext.getAddressDao(); address = addressDAO.create( Address.PROPERTY_ADRESS, "17 rue de la Pote Gellée, 44200 NANTES"); Modified: trunk/topia-persistence/src/test/java/org/nuiton/topia/generator/TopiaTestCase.java =================================================================== --- trunk/topia-persistence/src/test/java/org/nuiton/topia/generator/TopiaTestCase.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/test/java/org/nuiton/topia/generator/TopiaTestCase.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -30,7 +30,6 @@ import org.junit.Assert; import org.junit.Rule; import org.junit.Test; -import org.nuiton.topia.TopiaContext; import org.nuiton.topia.TopiaDatabase; import org.nuiton.topia.TopiaException; import org.nuiton.topia.TopiaTestDAOHelper; @@ -124,8 +123,8 @@ // try { TopiaTestTopiaPersistenceContext newContext = db.beginTransaction(); - CompanyDAO companyDAO = newContext.getCompanyDAO(); - DepartmentDAO departmentDAO = newContext.getDepartmentDAO(); + CompanyDAO companyDAO = newContext.getCompanyDao(); + DepartmentDAO departmentDAO = newContext.getDepartmentDao(); Company company = companyDAO.create(); company.setName("Ma société"); Modified: trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/EntityVisitorExportXmlTest.java =================================================================== --- trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/EntityVisitorExportXmlTest.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/EntityVisitorExportXmlTest.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -72,14 +72,14 @@ TopiaTestTopiaPersistenceContext newContext = db.beginTransaction(); try { // company - CompanyDAO companyDAO = newContext.getCompanyDAO(); + CompanyDAO companyDAO = newContext.getCompanyDao(); Company clCompany = companyDAO.create(Company.PROPERTY_NAME, "CodeLutin"); // employe - EmployeDAO employeDAO = newContext.getEmployeDAO(); + EmployeDAO employeDAO = newContext.getEmployeDao(); Employe empl1 = employeDAO.create(Employe.PROPERTY_NAME, "boss", Employe.PROPERTY_SALARY, 30000); - AddressDAO adressDAO = newContext.getAddressDAO(); + AddressDAO adressDAO = newContext.getAddressDao(); Address addr1 = adressDAO.create(Address.PROPERTY_CITY, "Nantes", Address.PROPERTY_ADRESS, "12 Avenue Jules Vernes"); empl1.setAddress(addr1); @@ -88,7 +88,7 @@ empl2.setAddress(addr2); // departement - DepartmentDAO departmentDAO = newContext.getDepartmentDAO(); + DepartmentDAO departmentDAO = newContext.getDepartmentDao(); Department depComm = departmentDAO.create(Department.PROPERTY_NAME, "Commercial"); depComm.setLeader(empl1); @@ -117,7 +117,7 @@ TopiaTestTopiaPersistenceContext context = db.beginTransaction(); - CompanyDAO companyDAO = context.getCompanyDAO(); + CompanyDAO companyDAO = context.getCompanyDao(); Company clCompany = companyDAO.findByName("CodeLutin"); EntityVisitor delegateVisitor = new ExportXMLVisitor(); Modified: trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/NaturalIdTest.java =================================================================== --- trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/NaturalIdTest.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/NaturalIdTest.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -31,13 +31,10 @@ import org.junit.Assert; import org.junit.Rule; import org.junit.Test; -import org.nuiton.topia.TopiaContext; import org.nuiton.topia.TopiaDatabase; import org.nuiton.topia.TopiaException; -import org.nuiton.topia.TopiaPersistenceContext; import org.nuiton.topia.TopiaTestDAOHelper; import org.nuiton.topia.TopiaTestTopiaPersistenceContext; -import org.nuiton.topia.TopiaTransaction; import org.nuiton.topiatest.NaturalizedEntity; import org.nuiton.topiatest.NaturalizedEntityDAO; @@ -65,7 +62,7 @@ TopiaTestTopiaPersistenceContext persistenceContext = db.beginTransaction(); NaturalizedEntityDAO dao = - persistenceContext.getNaturalizedEntityDAO(); + persistenceContext.getNaturalizedEntityDao(); // No exception will be thrown with the two properties dao.createByNaturalId(5, "str"); @@ -86,7 +83,7 @@ TopiaTestTopiaPersistenceContext persistenceContext = db.beginTransaction(); NaturalizedEntityDAO dao = - persistenceContext.getNaturalizedEntityDAO(); + persistenceContext.getNaturalizedEntityDao(); // Exception will be throw try { @@ -112,7 +109,7 @@ TopiaTestTopiaPersistenceContext persistenceContext = db.beginTransaction(); NaturalizedEntityDAO dao = - persistenceContext.getNaturalizedEntityDAO(); + persistenceContext.getNaturalizedEntityDao(); NaturalizedEntity entity = dao.createByNaturalId(5, "str"); @@ -135,7 +132,7 @@ NaturalizedEntityDAO dao = - persistenceContext.getNaturalizedEntityDAO(); + persistenceContext.getNaturalizedEntityDao(); NaturalizedEntity entity = dao.createByNaturalId(5, "str"); @@ -153,7 +150,7 @@ NaturalizedEntityDAO dao = - persistenceContext.getNaturalizedEntityDAO(); + persistenceContext.getNaturalizedEntityDao(); dao.createByNaturalId(5, "str"); persistenceContext.commitTransaction(); Modified: trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/TopiaDAOTest.java =================================================================== --- trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/TopiaDAOTest.java 2013-10-11 22:50:35 UTC (rev 2844) +++ trunk/topia-persistence/src/test/java/org/nuiton/topia/persistence/TopiaDAOTest.java 2013-10-15 15:08:16 UTC (rev 2845) @@ -61,7 +61,7 @@ public void setup() throws TopiaException { context = db.beginTransaction(); - dao = context.getPersonDAO(); + dao = context.getPersonDao(); } /** _______________________________________________ Topia-commits mailing list Topia-commits(a)list.nuiton.org http://list.nuiton.org/cgi-bin/mailman/listinfo/topia-commits

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[ANN] - ToPIA 2.8.1.3 released
by nuiton.org Release Notification Oct. 10, 2013

Oct. 10, 2013

The ToPIA team is pleased to announce the topia-2.8.1.3 release! Tools for Portable and Independent Architecture : Framework de persistance et de distribution d'application. Documentation of the project can be found here: http://maven-site.nuiton.org/topia Changes ------- Changes in this version include: Fixed Bugs: o TopiaContext#clear call TopiaContext#finalize method :( Issue: 2871. Thanks to Tony Chemit. Resolved by tchemit. Downloads --------- No release file deployed. (all files are deployed in the maven repository) Maven artifacts --------------- Artifacts are deployed in Maven Central Repository http://repo1.maven.org/maven2/ Find us at * http://search.maven.org/#artifactdetails|org.nuiton|topia|2.8.1.3|jar Have fun! -ToPIA team

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[ANN] - ToPIA 2.8.1.2 released
by nuiton.org Release Notification Oct. 10, 2013

Oct. 10, 2013

The ToPIA team is pleased to announce the topia-2.8.1.2 release! Tools for Portable and Independent Architecture : Framework de persistance et de distribution d'application. Documentation of the project can be found here: http://maven-site.nuiton.org/topia Changes ------- Changes in this version include: Fixed Bugs: o Can not replicate association Issue: 2870. Thanks to Tony Chemit. Resolved by tchemit. Downloads --------- No release file deployed. (all files are deployed in the maven repository) Maven artifacts --------------- Artifacts are deployed in Maven Central Repository http://repo1.maven.org/maven2/ Find us at * http://search.maven.org/#artifactdetails|org.nuiton|topia|2.8.1.2|jar Have fun! -ToPIA team

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[ANN] - ToPIA 2.8.1.1 released
by nuiton.org Release Notification Oct. 10, 2013

Oct. 10, 2013

The ToPIA team is pleased to announce the topia-2.8.1.1 release! Tools for Portable and Independent Architecture : Framework de persistance et de distribution d'application. Documentation of the project can be found here: http://maven-site.nuiton.org/topia Changes ------- Changes in this version include: Fixed Bugs: o Hibernate factory is closed by a child context Issue: 2869. Thanks to Tony Chemit. Resolved by tchemit. Downloads --------- No release file deployed. (all files are deployed in the maven repository) Maven artifacts --------------- Artifacts are deployed in Maven Central Repository http://repo1.maven.org/maven2/ Find us at * http://search.maven.org/#artifactdetails|org.nuiton|topia|2.8.1.1|jar Have fun! -ToPIA team

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Noms des DAOs (#2086)
by Brendan Le Ny Oct. 4, 2013

Oct. 4, 2013

Je suis en train de revoir la génération des DAO et il faudrait qu'on se décide sur les noms. Si on parle de l'entité Toto il y a quatre niveaux : - L'interface qui contient les opérations « métier » de Toto (interface POJO) indépendante de Topia et écrite par l'utilisateur - Le DAO qui contient le code généré (les méthodes spécifiques à l'entité) - Le DAO qui contient les méthodes écrites par l'utilisateur qui seront disponibles pour le DAO de Toto et aussi disponibles pour les DAO des entités qui sont des sous-classes de Toto - Le DAO qui contient les méthodes écrites par l'utilisateur qui seront disponibles pour le DAO de Toto seulement (méthodes non héritées pour les autres entités). Il faudrait le nom de chacune de ces quatre classes, actuellement, j'ai - TotoDao - GeneratedTotoTopiaDao - AbstractTotoTopiaDao (c'est surtout celui là que je trouve pas explicite) - TotoTopiaDao Avez-vous de meilleures idées ? Dans nuiton-jpa, le contrat s'appelle TotoDao tandis que le dao généré AbstractTotoJpaDao et l'implémentation utilisateur TotoJpaDao (y'a pas d'héritage entre les daos des entités qui héritent entre elles). On pourrait ainsi imaginer réutiliser un même contrat de dao avec des implémentations différentes des DAO pour diverses infra cibles. Ainsi TodoDao a deux impléms : TotoJpaDao et TotoTopiaDao. -- Brendan Le Ny, Code Lutin bleny(a)codelutin.com (+33) 02 40 50 29 28

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