95 | Class fields selection to storeClass fields selection to store |
95 | Selective merge/cascade of detatched entitySelective merge/cascade of detatched entity |
18 | Index Definition query execution. Indexes are especially efficient in lookup and range queries: SELECT p FROM Point p WHERE p.x = 100 SELECT p FROM Point p WHERE p.x BETWEEN 50 AND 80 SELECT p FROM Point p ... on fields x and y enables quick execution of the following queries: SELECT p FROM Point p WHERE p.x |
17 | JPA Criteria API Queries Criteria Query The following query string represents a minimal JPQL query: SELECT c FROM Country c ... > c = q.from(Country.class); q.select(c); The CriteriaBuilder interface serves as the main ... , the range variable, c, is also used in the SELECT clause as the query result expression |
15 | CRUD Database Operations with JPA objects in the database by using a simple query: Query q1 = em.createQuery("SELECT COUNT(p) FROM Point p"); System.out.println("Total Points: " + q1.getSingleResult()); The query string ("SELECT ... see another example of a query that returns a single result: Query q2 = em.createQuery("SELECT AVG(p.x) FROM |
15 | Running JPA QueriesThe Query interface defines two methods for running SELECT queries: Query.getSingleResult - for use ... : TypedQuery<Country> query = em.createQuery("SELECT c FROM Country c", Country.class); List ... (generic) type: Query query = em.createQuery("SELECT c FROM Country c"); List results = query |
15 | Shared (L2) Entity Cache: NONE - cache is disabled. ENABLE_SELECTIVE - cache is disabled except for selected entity classes (see below). DISABLE_SELECTIVE - cache is enabled except for selected entity classes ... Settings The ENABLE_SELECTIVE mode indicates that the cache is disabled for all the entity classes |
3 | Spring MVC JPA Tutorial - IntelliJ Project: Spring MVC JPA - Maven Project (8KB) Open the project in IntelliJ IDEA: Select File > Open Project.... Select the guestbook-spring directory and click OK. Define the Server: Select File > Settings ... ). Define Run Configuration: Select Run > Edit Configurations, click the + icon and select Tomcat |
3 | JPA Web App Tutorial - IntelliJ Project the project zip file: JPA Web App - Maven Project (6KB) Open the project in IntelliJ IDEA: Select File > Open Project.... Select the guestbook-web directory and click OK. Define the Server: Select File ... separately). Define Run Configuration: Select Run > Edit Configurations, click the + icon |
3 | Java EE 6 JPA Tutorial - IntelliJ Project: Select File > Open Project.... Select the guestbook-jee6 directory and click OK. Define the Server: Select File > Settings > Application Servers. Add Tomcat 6 Server if not set already (Tomcat has to be downloaded separately). Define Run Configuration: Select Run > Edit Configurations, click |
