android - Transactions with GreenDao -


i made post because don't understand how transaction works using greendao , love explanation/recent tutorial.

despite of reading greendao github, don't understand how main activity works. example:

...     note note = new note(null, notetext, comment, new date(), notetype.text);     notedao.insert(note)             .observeon(androidschedulers.mainthread())             .subscribe(new action1<note>() {                 @override                 public void call(note note) {                     log.d("daoexample", "inserted new note, id: " + note.getid());                     updatenotes();                 }             }); ...

do observeon method sends every insertion/update 1 limited buffer? so, manage automatically insertion real database when every operation finished whithout problems?

reading api, see use rxtx , rxtxplain transactions (other way?), , finding out performed, have misunderstood everything. example:

...     public void testconcurrentinsertduringtx() throws interruptedexception {          ...          runnable runnable2 = new runnable() {             @override             public void run() {                 dao.insertintx(createentity(null));             }         };         runnable runnable3 = new runnable() {             @override             public void run() {                 daosession.runintx(new runnable() {                     @override                     public void run() {                         dao.insert(createentity(null));                     }                 });             }         };          ...                     // builds statement ready in thread         dao.insert(createentity(null));         dotx(new runnable() {             @override             public void run() {                 dao.insert(createentity(null));             }         });         latchthreadsdone.await();         assertequals(7, dao.count());     } ...

i know example, but don't know diferences of using rx methods , observeon/subscribe ones

protected void dotx(final runnable runnableinsidetx) {     daosession.runintx(new runnable() {         @override         public void run() {             latchinsidetx.countdown();             // give concurrent thread time try acquire locks             try {                 thread.sleep(time_to_wait_for_thread);             } catch (interruptedexception e) {                 throw new runtimeexception(e);             }             runnableinsidetx.run();         }     }); }

i read topics transactions, obsoletes or maybe, didn't understand them correctly:

sqlite transaction behaviour using greendao

android - green dao multiple transaction

transactions in greendao

greendao 40 seconds insert 600 records

https://groups.google.com/forum/#!topic/greendao/pxrwcrtbp6c

someone me giving me explanation/recent tutorial? greendao have these methods experimentals. in advance


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