Skip to Main Content
Forums

APEX

Announcement

For appeals, questions and feedback about Oracle Forums, please email oracle-forums-moderators_us@oracle.com. Technical questions should be asked in the appropriate category. Thank you!

Interested in getting your voice heard by members of the Developer Marketing team at Oracle? Check out this post for AppDev or this post for AI focus group information.

Direction Right To Left in 5.1

IBRAHIM ALSRORIDec 17 2016 — edited Jan 29 2017

I have application in apex 5.0 , i try to upgrade  it to 5.1 but when i try to change direction from right to left nothing change it still the same direction( left to right) ,

and when i create new application in 5.1 and change the direction ,it changed perfect,

why the old applications can't change direction in 5.1 ,

any help please ?
This post has been answered by Patrick Wolf-Oracle on Dec 17 2016
Jump to Answer

Comments

843811
Such optimization are done by JIT compiler (not by javac).
C++ have just the same problems, exceptions make CFG analisis more difficult but not impossible.
PS You can read JLS about volatile variables there some additional restrictions on them.
843811
zhmur is right, this makes optimization harder not impossible.

There are sicentific papers aimed at making more analysis/optimization in the presence of many try/catch blocks. For instance, JIT can reorder statements, and then put compensation code into the catch body, recovering program state back if an exception was thrown.

General principle is simple: exceptions are rare. So JIT optimizes the "normal" control flow by the cost of more complex catch body.

You may also look/post to the comp.compilers newsgroup regarding compilers and optimization techniques

Denis

-----------------------------
www.excelsior-usa.com/jet.html
High-Performance JVM for J2SE
1 - 2
Locked Post
New comments cannot be posted to this locked post.

Post Details

Locked on Feb 26 2017
Added on Dec 17 2016
#apex-discussions
7 comments
2,669 views