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java Programming Glossary: daoSpring @Transactional Annotation Best Practice http://stackoverflow.com/questions/1079114/spring-transactional-annotation-best-practice in our code. Do you place the @Transactional in the DAO classes and or their methods or is it better to annotate the.. annotate the Service classed which are calling using the DAO objects Or does it make sense to annotate both layers java.. and use cases. It's the right answer if you have several DAOs injected into a Service that need to work together in a single..
http://stackoverflow.com/questions/13011392/jsf-service-layer Controllers in MVC terms and the Service itself will call DAO's using JPA when necessary. Thanks in advance java mvc jsf.. transaction. So if an exception occurs during one of any DAO operations using @PersistenceContext EntityManager which is..
Places where JavaBeans are used? http://stackoverflow.com/questions/1727603/places-where-javabeans-are-used memory e.g. in harddisk or over network. In for example a DAO class you can use it to create a list of users wherein you store.. request HttpServletResponse response List User users userDAO.list request.setAttribute users users request.getRequestDispatcher..
I found JPA, or alike, don't encourage DAO pattern http://stackoverflow.com/questions/2100115/i-found-jpa-or-alike-dont-encourage-dao-pattern found JPA or alike don't encourage DAO pattern I found JPA or alike don't encourage DAO pattern. I.. DAO pattern I found JPA or alike don't encourage DAO pattern. I don't know but I feel like that especially with server.. server managed JTA managers. After adequate hands on using DAO pattern I started designing JPA based application around that..
JDBC MySql Connection Pooling practices http://stackoverflow.com/questions/2313197/jdbc-mysql-connection-pooling-practices cause your application to crash. Also see this basic JDBC DAO tutorial for more hints how to get started with JDBC in webapplications..
Recommended JSF 2.0 CRUD frameworks [closed] http://stackoverflow.com/questions/3180400/recommended-jsf-2-0-crud-frameworks list dao.list Actually you should retrieve the list from DAO. This is just for demo. list new ArrayList Item list.add new.. 3L item3 public void add dao.create item Actually the DAO should already have set the ID from DB. This is just for demo...
http://stackoverflow.com/questions/5003142/jsp-using-mvc-and-jdbc getters setters c'tors equals hashcode boilerplate. A DAO class which does all the nasty JDBC work and returns a nice.. work and returns a nice List Product . public class ProductDAO public List Product list throws SQLException Connection connection.. IOException try List Product products productDAO.list request.setAttribute products products Will be available..
What components are MVC in JSF MVC framework? http://stackoverflow.com/questions/5104094/what-components-are-mvc-in-jsf-mvc-framework code is the V M Business domain Service layer e.g. EJB JPA DAO V Your JSF code C FacesServlet In the smaller developer picture..
Is it safe to use a static java.sql.Connection instance in a multithreaded system? http://stackoverflow.com/questions/9428573/is-it-safe-to-use-a-static-java-sql-connection-instance-in-a-multithreaded-syste
Tracking down a memory leak / garbage-collection issue in Java. http://stackoverflow.com/questions/1071631/tracking-down-a-memory-leak-garbage-collection-issue-in-java there was no explicit use of the sessions we are using a dao manager driver quartz job hierarchy the dao is injected with.. we are using a dao manager driver quartz job hierarchy the dao is injected with hibernate configs through spring so the operations.. so the objects kept getting created. The solution create a dao method that explicitly calls session.flush and session.clear..
http://stackoverflow.com/questions/1074081/hibernate-error-org-hibernate-nonuniqueobjectexception-a-different-object-with I am creating the session using BaseHibernateDAO dao new BaseHibernateDAO rtsession dao.getSession userData.getRegion.. using BaseHibernateDAO dao new BaseHibernateDAO rtsession dao.getSession userData.getRegion BaseHibernateDAO.RTREQUESTS_DATABASE_NAME..
Spring @Transactional Annotation Best Practice http://stackoverflow.com/questions/1079114/spring-transactional-annotation-best-practice annotate both layers java spring annotations transactions dao share improve this question I think transactions belong..
http://stackoverflow.com/questions/1847040/open-session-in-view-pattern and not worry about fetching child entities in the dao. Mostly. In 90 of the cases the pattern solves the lazy initialization.. pattern as it's with any other pattern add the proper dao or service methods fix the controller to call a different finder..
I found JPA, or alike, don't encourage DAO pattern http://stackoverflow.com/questions/2100115/i-found-jpa-or-alike-dont-encourage-dao-pattern Indeed it depends case to case. java hibernate orm jpa dao share improve this question For simple applications I don't..
http://stackoverflow.com/questions/2144697/spring-hibernate-a-different-object-with-the-same-identifier-value-was-alrea Cascade.java 268 Any tips java hibernate spring dao share improve this question Use merge . The exception means..
Multiple Entity Manager issue in Spring when using more than one datasource http://stackoverflow.com/questions/3731016/multiple-entity-manager-issue-in-spring-when-using-more-than-one-datasource IDS NT32 1 1 0 819 0 DRIVER 4.7.85 java spring jpa dao share improve this question I've hit the same exact issue..
Java EE Architecture - Are DAO's still recommended when using an ORM like JPA 2? http://stackoverflow.com/questions/3818589/java-ee-architecture-are-daos-still-recommended-when-using-an-orm-like-jpa-2 people have come up with in regards to this. java java ee dao jpa 2.0 architecture share improve this question If I'm..
Abstract DAO pattern and Spring's “Proxy cannot be cast to …” problem! http://stackoverflow.com/questions/3852564/abstract-dao-pattern-and-springs-proxy-cannot-be-cast-to-problem em implementations skipped And this is one entity's dao public interface PersonDao extends AbstractDao Person empty.. false public class PersonDaoTest @Inject PersonDao dao @Test public void testAdditionalMethod PersonDaoImpl impl PersonDaoImpl.. void testAdditionalMethod PersonDaoImpl impl PersonDaoImpl dao System.out.println impl.additionalMethod ... The problem occurs..
DAO and Service layers (JPA/Hibernate + Spring) http://stackoverflow.com/questions/3882108/dao-and-service-layers-jpa-hibernate-spring an example of good practice java spring architecture jpa dao share improve this question A DAO should provide access..
Single DAO & generic CRUD methods (JPA/Hibernate + Spring) http://stackoverflow.com/questions/3888575/single-dao-generic-crud-methods-jpa-hibernate-spring an example or share a link regarding this java jpa crud dao genericdao share improve this question Here is an example.. or share a link regarding this java jpa crud dao genericdao share improve this question Here is an example interface..
How to annotate MYSQL autoincrement field with JPA annotations http://stackoverflow.com/questions/4102449/how-to-annotate-mysql-autoincrement-field-with-jpa-annotations groupId org.springframework groupId artifactId spring dao artifactId exclusion exclusion groupId org.springframework..
rollback transaction when testing service with spring + hibernate + junit http://stackoverflow.com/questions/4166983/rollback-transaction-when-testing-service-with-spring-hibernate-junit with spring hibernate junit i have no problem to test my dao and services but when i test some insert or update i want to..
http://stackoverflow.com/questions/417062/enumerations-in-hibernate What other patterns do people use java hibernate dao share improve this question using hibernate or JPA annotations..
What strategy do you use for package naming in Java projects and why? http://stackoverflow.com/questions/533102/what-strategy-do-you-use-for-package-naming-in-java-projects-and-why create public interfaces to its persistence classes in the dao layer and instead packaging the dao class in with only the classes.. classes in the dao layer and instead packaging the dao class in with only the classes it deals with. Obviously if you.. com.company.appname.integration.productdao com.company.appname.integration.internal.dbproductdao com.company.appname.integration.internal.mockproductdao..
http://stackoverflow.com/questions/15002836/spring-generic-dao-class-name Generic Dao class name I have configured a custom generic service DAO for..
Java <-> Scala interop: transparent List and Map conversion http://stackoverflow.com/questions/1519838/java-scala-interop-transparent-list-and-map-conversion example of the problem. There are classes Main Logic Dao . They call each other in a line Main Logic Dao . public class.. Main Logic Dao . They call each other in a line Main Logic Dao . public class Main public void a List Integer res new Logic.. calculate List Integer ints List Integer together new Dao .getSomeInts together.addAll ints return together public class..
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