Here is simple example I've created after reading several topics about jpa bulk inserts, I have 2 persistent objects User, and Site. One user could have many site, so we have one to many relations here. Suppose I want to create user and create/link several sites to user account. Here is how code looks like, considering my willing to use ...
Hi, sorry for my english, I speak spanish. I recently migrate an application from ejb 2.x to ejb3 (approx. 300 entities), Im using WebSphere 7.0.0.9. After 10 hours of work, the system crash with an OutOfMemoryError. Analyzing the coredump, I see a lot of instance of the org.apache.openjpa.jdbc.meta.ClassMapping class (please see the a...
Given a lookup table: | ID | TYPE | CODE | DESCRIPTION | | 1 | ORDER_STATUS | PENDING | PENDING DISPOSITION | | 2 | ORDER_STATUS | OPEN | AWAITING DISPOSITION | | 3 | OTHER_STATUS | OPEN | USED BY OTHER ENTITY | If I have an entity: @MappedSuperclass @Table(name="LOOKUP") @Inheritance(strategy=In...
Hi! I'm having trouble handling IDs of my databse tables using OpenJPA and HSQLdb. I created an Abstract class where I handle annotations and stuff to remap into the DB: // Property accessors @Id @Column(name = "IDTESTOBJEKT", unique = true, nullable = false) public Integer getIdtestobjekt() { return this.idtestobje...
Hi! I'm (still) having loads of issues with HSQLdb & OpenJPA. Exception in thread "main" <openjpa-1.2.0-r422266:683325 fatal store error> org.apache.openjpa.persistence.RollbackException: user lacks privilege or object not found: OPENJPA_SEQUENCE_TABLE {SELECT SEQUENCE_VALUE FROM PUBLIC.OPENJPA_SEQUENCE_TABLE WHERE ID = ?} [code=-5501,...
Below is my test code: package jee.jpa2; import java.util.List; import javax.persistence.EntityManager; import javax.persistence.EntityManagerFactory; import javax.persistence.EntityTransaction; import javax.persistence.Persistence; import javax.persistence.Query; import org.testng.annotations.BeforeClass; import org.testng.annotatio...
Hi all, my mysql db has character encoding utf8. In QueryBrowser i can see special characters are correct. In appplication using openjpa i can see the same values also correct. But when I persist object into DB, I have correct values in application but incorrect in DB! When I restart application that special characters in application ar...
I'm trying to find information on what triggers a data cache cleardown in kodo / openjpa. I'm guessing there is a high watermark - at which point the cache will clear down data. Does it just remove a single item once you hit your cache size limit, or a whole load of stuff? Or maybe there is no clear down, and you simply get an error w...
I'm looking for an entity detection in OpenJPA. That I don't need to declare all entities in the persistence.xml. Edit: I'm sorry, I forgot to say that I develop a java se app. ...
Hi, I have a problem Tables sales_2009 sales_2008 sales_2007 And only one class (sales), How change the table at runtime? ...
Is there any jpa 1.0 fluent api/interface for query building? I'm using openjpa 1.x, so I'm stuck with JPA1. I found QueryByProxy, but its maven repo is not working properly. ...
Hi all. I'm building an application using OpenJPA 2.0.0, Jersey 1.3, and JUnit 4.8.1. I've set it up so I have two different persistence units defined in my persistence.xml: "default" and "unittest." Default is set up to connect to an Oracle instance, while unittest is set up to connect to a local H2DB embedded database file. I do th...
I'm trying to configure ehcache with openjpa. I get the following error: org.apache.openjpa.lib.util.ParseException: Instantiation of plugin "DataCacheManager" with value "ehcache" caused an error "java.lang.IllegalArgumentException: java.lang.ClassNotFoundException: ehcache". The alias or class name may have been misspelled, or the ...
I'm new to EJB 3 and the JPA. I've created a datasource in the appserver which is jdbc/AppDataSource. The default persistence provider is left as com.ibm.websphere.persistence.PersistenceProviderImpl. And I left the default jta data source JNDI name as AppDataSource itself. I'm actually confused regarding JTA and non-JTA. What different...
Hi I m using JPQL to retrieve data. I can get data using the statement List persons = null; persons = em.createQuery("select p.albumName from PhotoAlbum p , Roleuser r where r = p.userId and r.userID = 1"); Now i can get the album names using this... int i=0; for (i=0;i<persons.size(); i++) { System.out.println("Testing n "...
I am using JPA 2 for an enterprise application, and my DBA's just hit me with a twist. They want me to use the group's centralized object ID generator for all my tables. This means rather than using table values or a sequence table, I will need to call a web service to get a batch of ~50 ids. Then, as I persist any new object, I would...
Hi I m using JPA to insert a row My update code as in here Now i m inserting a row using this code public void get_image (String id) { Object l = null; try { em = this.getEm(); EntityTransaction entr = em.getTransaction(); entr.begin(); newa.Options o = new newa.Options(); newa....
Hello guys, I have a small problem here and hope that someone can help me out. I wanna do a mapping from Object to Integer. The Object is marked as Fetchtype.Lazy. When I do the mapping I get the following error message: 11:31:46,569 ERROR MappingProcessor:253 - Field mapping error --> MapId: null Type: null Source parent clas...
I have a problem with OpenJPA I try to read all rows from a table but the primary key has always a same value(value = 0)!?!?!? for (Object o : em.createQuery("select x from AnnouncementsEntry x") .getResultList()) { //alway returns "0" in every row long id = ((AnnouncementsEntry) o).getEntryI...
Update 3: Addes following code to the pom so openjpa could find the persistence.xml file. Got some query errors left but I finally got openjpa to work :). <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> </includes> </resource> </resources> Update2: Set up maven p...