java - Temporarily disable Hibernate entity version checking -


i have page display contacts. read page , iterate through contacts group , display them:

//not lazy load of contacts, cannot use lazy loading list<contact> contacts = someservice.getcontacts(groupid);  (contact contact : contacts) {     //add contact properties model displayed later }

at same time might have separate, background thread updates 1 of contacts. thread updates field i'm not going display, i'm ok data desynchronising in case.

the problem hibernate update contact's version number , commit db (when background thread finishes). when loop hits such object following exception thrown.

org.hibernate.staleobjectstateexception: row updated or deleted transaction (or unsaved-value mapping incorrect)

which ok. there way disable object's version checking during iteration through hibernate's collection? when disable, mean in particular scenario, in particular loop? not other situations.

i think happens because underlying collection abstractpersistentcollection , iterator check each member's version corresponding db value.

if doing read-only operation, should not staleobjectstateexception. exception thrown when doing update data stale , hibernate detects using version information.

so check code , make sure not doing unneeded updates read-only operation of displaying contacts.


Comments

Post a Comment

Popular posts from this blog

c# - Validate object ID from GET to POST -

i have method allows user access comment have made on site. have post method lets them update comment. my normal solution send entire comment model through, let them update it, update on database when post back. involve sending commentid through in hiddenfor , can manipulated. how can verify commentid sent in get method same i'm getting in post , not able alter comment wish? how can verify commentid sent in method same i'm getting in post? basically have validate following things in post - user logged-in user. authenticated users post comments. commentid in post , should valid commentid , should present in database. userid associated logged-in user should same userid associated comment . comment should contain userid column, can check @ time of update. to make sure update happens comment has been sent in get - hold commentid in session , in post action compare commentid value in session .
Read more

node.js - Custom Model Validator SailsJS -

when using custom model validator checks record within model. return within spread doesn't seem end control flow. //post.js model /** * custom validator **/ types: { isuservalid: function(user_id) { var promise = require('bluebird'); promise.all([ user.findone({id: user_id}) ]) .spread(function(user) { console.log(user); if (user === null || user === undefined) { console.log('failed'); return false; }else{ console.log('passed'); return true; } }); } }, my response standard validation failed response. { "error": "e_validation", "status": 400, "summary": "1 attribute invalid", "model": "post", "invalidattributes": { "owner": [ { "rule": "isuservalid", ...
Read more

php - Find a regex to take part of Email -

i have following emails need extract part from: bestellnummer xxx: 1 von xxx, 1er pack ------------- anfang der nachricht ------------- foo bar baz foo bar baz // <<<<< need text here ------------- ende der nachricht ------------- ------------- anfang der nachricht ------------- foo bar baz foo bar baz ------------- ende der nachricht ------------- there 0 unlimited occurences of ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- and i'm able extract first part regex: $re = "/------------- .*? -------------.?(.*?).?------------- .*? -------------/s"; but, i'm quite new on learning regex, i'm pretty sure there must better regex extract part (foo bar baz foo bar baz) of text between ------------- anfang der nachricht ------------- ------------- ende der nachricht ------------- as can in different languages, i'm using .? to match between hyphens. i...
Read more