![]() ![]() The CcRegistrationsEntity is just like your normal entity. The result of the generating process was two classes (yes, I also expected one): CcRegistrationsEntity and CcRegistrationsEntityPK. This way you don’t have to scroll through pages of code and it’s easier for me to see a solution. To create a solution I just created mappings for the primary key columns (att_id and ssn_id) and a random normal column (status). ![]() The table in the way was the CC_REGISTRATIONS table. After that I can probably remove some annotations and attributes on existing annotations. My idea was to create a mapping for the annoying table and see what was generated. I remembered I wrote a blog about generating annotated classes for JPA. To clean off rust you can use Cola, so I opened a can, drank it and I almost immediately had a result. I guess I’m also a bit rusty with Hibernate. That link got me confused and it isn’t really clear what you have to do. ![]() I usually avoid those tables, but now I had no control over the tables (well actually I have, but that’s considered cheating the assignment □ )Īfter searching on google and dzone I didn’t get any further, the closest thing to a solution was a piece of information in the Hibernate manual. I forgot that some tools exist to generate the mapping, so I did it by hand.Īfter some simple tables a table with a composite Id was in my way. I used all the standard JPA annotations, so this should also work with Toplink Essentials or any other JPA-implementation. The next step was connecting to the database with Hibernate Annotations. I generated some Java classes based on the WSDL with XFire, that went quite smooth (thanks to earlier experience with XFire :). When I came home after the training I thought why not also do it in java, just to refresh my knowledge. and me) decided to make a ‘something’ with BPEL and PL/SQL. We had to create something with the SOA Suite based on the WSDL and the instructors would connect to our service to test whether we succeeded. The instructors gave us a WSDL, a database and some instructions. On the AMIS SOA training program we got a nice assignment. In this article I will explain how to map a composite primary key with JPA-annotations and how to work around the bug in Hibernate Annotations. When you’re using Hibernate Annotations you might also run into an annoying bug. Hibernate: insert into ACCOUNT (ACC_NUMBER, ID) values (?, ?)ħ:14:32 PM. table without single-column primary key, Java developers don’t like them because it’s more work than just putting on a field. INFO: HHH000476: Executing import script insert into Employee (EMAIL, FIRST_NAME, LAST_NAME) values (?, ?, ?) Hibernate: alter table Employee add constraint UK_ardf0f11mfa6tujs3hflthwdv unique (EMAIL)ħ:14:32 PM .internal.SchemaCreatorImpl applyImportSources Hibernate: alter table ACCOUNT add constraint UK_nsa1j7vica4ow9xhhkudukb3j unique (ACC_NUMBER) Hibernate: create table Employee (ID integer not null auto_increment, EMAIL varchar(100) not null, FIRST_NAME varchar(100) not null, LAST_NAME varchar(100) not null, primary key (ID)) engine=MyISAM Hibernate: create table ACCOUNT (ID integer not null, ACC_NUMBER varchar(100) not null, primary key (ID)) engine=MyISAM INFO: HHH10001501: Connection obtained from JdbcConnectionAccess for (non-JTA) DDL execution was not in auto-commit mode the Connection 'local transaction' will be committed and the Connection will be set into auto-commit mode. INFO: HHH000400: Using dialect: 5Dialectħ:14:31 PM. getIsolatedConnection INFO: HHH000115: Hibernate connection pool size: 1 (min=1)ħ:14:30 PM INFO: HHH10001003: Autocommit mode: falseħ:14:30 PM .$PooledConnections Public class Employee implements Serializable ħ:14:30 PM. buildCreator Import name = "SharedPrimaryKeyEmployeeEntity name = "Employee ", uniqueConstraints = columnNames = "ID columnNames = "EMAIL ") ![]()
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