PouchDB dev here. Obviously I’m biased, but here’s my take: The best way to get around the storage quotas in PhoneGap/Cordova is to use the SQLite plugin for iOS/Android. The performance also tends to be better, especially on Android. (Edit: in modern post-Kitkat Android, it’s actually worse.) WebSQL has a nice query language, but you … Read more
If you look closely at your stacktrace, you will see Caused by: org.hibernate.AnnotationException: @OneToOne or @ManyToOne on entities.Question.examId references an unknown entity: long So this field @ManyToOne private long examId; is causing the problem. @ManyToOne has a paramater targetEntity which says: (Optional) The entity class that is the target of the association. Defaults to the … Read more
You can use RoomDatabase.runInTransaction(…) Something like: database.runInTransaction(new Runnable(){ @Override public void run(){ Access all your daos here } });
As noone has yet answered the question, I’ll post on what I have decided in the meantime. Just for the record, I have pretty much decided on calling most data store classes repositories. First, it appears to be the most neutral, non-technical term from the list I suggested, and it seems to be well in … Read more
Try using the EntityManager.merge method – this is very similar. There is an excellent description of the differences in Xebia’s blogpost: “JPA Implementation Patterns: Saving (Detached) Entities.”
The typical table for one T1 to many T2 is to have a foreign key on T2 pointing toward T1. The T1_T2 table is usually not needed. The JPA structure would then be a One-To-Many, possibly two-way. There could be some arrangements, to make the structure you describe work. You could change T1_T2: add a … Read more
Why are you guys over complicating this? It is really simple. The mapping looks like this: <property name=”OrganizationType”></property> The model property looks like this: public virtual OrganizationTypes OrganizationType { get; set; } The Enum looks like this: public enum OrganizationTypes { NonProfit = 1, ForProfit = 2 } NHibernate will automatically figure it all out. … Read more
I have never tried it, but what about redis ? Its homepage says (quoting) : Redis is a key-value database. It is similar to memcached but the dataset is not volatile, and values can be strings, exactly like in memcached, but also lists and sets with atomic operations to push/pop elements. In order to be … Read more
As some comments have echoed, structuring your tests in this manner is probably a design flaw in the tests themselves and you should consider restructuring them. However, if you want to do this and rely on the fact that the test runner you are using executes them in an alphabetical (seemingly) order then I suggest … Read more
According to the section 4.6.8 In Expressions from the JPA 1.0 specification: There must be at least one element in the comma separated list that defines the set of values for the IN expression. In other words, regardless of Hibernate’s ability to parse the query and to pass an IN(), regardless of the support of … Read more