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Hibernate openSession() vs getCurrentSession()
....) The author suggests the use of filter. In his filter code, he doesn't call openSession() or close(). He only calls getCurrentSession(). I guess he sets current_session_context to thread. Now I think I understand getCurrentSession(). However, I don't know when should I use openSession().
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Override compile flags for single files
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It would be preferable to use add_compile_options
add_compile_options(-Wall -Weffc++ -pedantic -std=c++0x)
or for CMake versions < 3.0 to do something more like:
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Weffc++ -pedantic -std=c++0x")
In response to further questions in the comment...
Programmatically align a toolbar on top of the iPhone keyboard
...putAccessoryView property, which you can set to any view, that is automatically displayed above and animated with the keyboard.
Note that the view you use should neither be in the view hierarchy elsewhere, nor should you add it to some superview, this is done for you.
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Why does Internet Explorer not send HTTP post body on Ajax call after failure?
...en a new connection. This can have a significant performance impact, especially on high latency networks.
The issue is triggered easily if Ajax requests are made in rapid succession. For example, we make Ajax requests every 100ms and then the network status changes, the error is easy to reproduce. A...
What's the difference between findAndModify and update in MongoDB?
...you will get back a different item than what you updated.
Doing it "atomically" means you are guaranteed that you are getting back the exact same item you are updating - i.e. no other operation can happen in between.
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Why is inserting in the middle of a linked list O(1)?
...Operations on Linked Lists are often done in such a way that they aren't really treated as a generic "list", but as a collection of nodes--think of the node itself as the iterator for your main loop. So as you're poking through the list you notice as part of your business logic that a new node need...
Any difference between First Class Function and High Order Function
...s the definitions are certainly subjective and open to debate, but I personally prefer to think that C only supports higher order functions (via function pointers). However, first-class functions are not supported because functions are inferior to other value types like int or char, in the sense tha...
How to set breakpoints in inline Javascript in Google Chrome?
When I open Developer Tools in Google Chrome, I see all kinds of features like Profiles, Timelines, and Audits, but basic functionality like being able to set breakpoints both in js files and within html and javascript code is missing! I tried to use the javascript console, which itself is buggy - f...
Database cluster and load balancing
What is database clustering? If you allow the same database to be on 2 different servers how do they keep the data between synchronized. And how does this differ from load balancing from a database server perspective?
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How to check the extension of a filename in a bash script?
...hat the right-hand side of == or != is expanded as a shell pattern. Personally I think this is clearer than my answer.
– Paul Stephenson
Jun 11 '09 at 8:12
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