java - How to manage Repository and UnitOfWork on top of JDBC -

-

i'm wondering best way of implementing unitofwork pattern on top of jdbc when using repository pattern.

i want use uow commit or rollback commands potentially multiple different repositories. came repositories connection going execute commands on uow object , let manage committing or rolling back.

now question how shall uow manage connections? shall 1 connection on start of cycle , share repositories when call connection , @ end either commit or roll back. or shall let datasource manage connections, , keep reference connections obtained in 1 session in order able commit or rollback of them?

which way use best out of connection pooling , have less trouble in managing connections?

maybe worth noting use single threaded approach, meaning whole cycle (single uow) run on single thread , there no fancy multithreading management required neither in uow nor in repositories. multiple cycles may run in parallel each on own thread.


Comments

Post a Comment

Popular posts from this blog

ios - Is 'init' forbidden as *part* of a variable name? -

-
i spent 3 hours debugging error , in end narrowed down (i think) variable name. i using initmonths (initial months) caused unpredicatable errors when changed imonths worked! i can understand preventing use of init on it's own surprised if prevented part of variable name. bug or feature? it's not bug if it's related name being overlap. there's part of arc used know when retain counts should updated, , may running that. similar rules apply use new @ start of names (for same reason). it's easy , wise steer clear of using init @ start of names unless it's init function. i can imagine issue related arc getting involved shouldn't , takes while called shouldn't, weird. i expect issue else , name change had other effect. worst case means have memory issue , changing name has changed memory footprint of code you've moved bug somewhere else (or along lines).
Read more

file - Python: AttributeError: 'str' object has no attribute 'readlines' -

-
i trying copy text mobilebuildsettings , use replace text abproject . getting following error , don't understand it. attributeerror: 'str' object has no attribute 'readlines' below code: with open("c:/abproject.build", "r+") script, open ("c:/tempfile.build","w+") newscript: abproject = ("c:/abproject.build") line in abproject.readlines(): if line == "@appidentifier@" : newabproject.write('"' + "appidentifier : " + '"' + appidentifier.get() + '"' + "\n") else: newabproject.write(line) abproject.close() newabproject.close() os.remove("abproject.txt") os.remove("tempfile.buil","abproject.txt") in order give answer jill1993's question , take moseskoledoye's answer : abproject = ("c:/abproject.build") abproject string object. furthermore, write : with open...
Read more

c# - Get the Class name in a class with atribute inside a attribute method -

-
i'm doing custom authorize attribute. want use attribute in class , controller level. this code work on method level public class customauthorizeattribute : authorizeattribute { public customauthorizeattribute([callermembername] string callername = null) { callername = callername; } public string callername { get; set; } protected override bool authorizecore(httpcontextbase httpcontext) { if (httpcontext.user.isinrole("admin")) return true; ... if (callername == something) { } ... return base.authorizecore(httpcontext); } } like that [customauthorize()] public actionresult index() { return view(); } but want use globally in controller [customauthorize()] public class usuarioscontroller : controller { salusdbcontext db = new salusdbcontext(); // get: usuarios public actionresult index() { ...
Read more