You can use a plugin like Eclipse Dali to do the trick for you. You can refer to the documentation, section 3.11 Generating Entities from Tables. I do not know of any specific vendor independent tool to do this, though.
Taking a look at jsr always works! 8.2.1.6.3 Jar Files One or more JAR files may be specified using the jar-file elements instead of, or in addition to the mapping files specified in the mapping-file elements. If specified, these JAR files will >be searched for managed persistence classes, and any mapping metadata annotations found on … Read more
You need to convert the enum to and from the raw value. In Swift 1.2 (Xcode 6.3), this would look like this: class AppState : NSObject, NSCoding { var idx = 0 var stage = Stage.DisplayAll override init() {} required init(coder aDecoder: NSCoder) { self.idx = aDecoder.decodeIntegerForKey( “idx” ) self.stage = Stage(rawValue: (aDecoder.decodeObjectForKey( “stage” ) … Read more
Sometimes changes made to the model or to the ORM may not reflect accurately on the database even after an execution of SchemaUpdate. If the error actually seems to lack a sensible explanation, try recreating the database (or at least creating a new one) and scaffolding it with SchemaExport.
I would append another view: POCO states for objects which are not dependent on any framework. The wiki definition of a POJO is much more meaningful to me then the one for POCO: http://en.wikipedia.org/wiki/Plain_Old_Java_Object To paraphrase the wiki definition of the POJO, we can say that POCO object might not be forced to: I. Extend … Read more
Another option, which may or may not be relevant in your case, is to run the JVM (any JVM) inside a virtual machine. Most virtual machines offer the option to store and resume state, so you should be able to restart your PC, fire up the VM when it comes back up and have the … Read more
You can detach an entity by calling Session.evict(). Other options are create a defensive copy of your entity before translation of values, or use a DTO instead of the entity in that code. I think these options are more elegant since they don’t couple conversion to JSON and persistence layer.
Instead of defining EntityManager in each of your resource, you can define it once by creating a Custom JpaRepository. Reference Then use the refresh of your EntityManager in each of your repository directly. Refer the below example: CustomRepository Interface import org.springframework.data.jpa.repository.JpaRepository; import org.springframework.data.repository.NoRepositoryBean; import java.io.Serializable; @NoRepositoryBean public interface CustomRepository<T, ID extends Serializable> extends JpaRepository<T, ID> … Read more
Pretty sure UUIDs are “good enough”. There are 340,282,366,920,938,463,463,374,607,431,770,000,000 UUIDs available. http://www.wilybeagle.com/guid_store/guid_explain.htm “To put these numbers into perspective, one’s annual risk of being hit by a meteorite is estimated to be one chance in 17 billion, that means the probability is about 0.00000000006 (6 × 10−11), equivalent to the odds of creating a few tens … Read more
Just as a supplement to Mark’s answer, here is what I ended up doing in my controller. @Override protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) throws Exception { binder.registerCustomEditor(Server.class, “serverId”, new PropertyEditorSupport() { @Override public void setAsText(String text) { Server type = (Server) em.createNamedQuery(“Server.findById”) .setParameter(“id”, Short.parseShort(text)).getSingleResult(); setValue(type); } }); } You can also do this using … Read more