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How to map calculated properties with JPA and Hibernate

...he database with a COUNT() function operating on the join of my Java bean and its children. It would be even better if this property could be calculated on demand / "lazily", but this is not mandatory. ...
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Ways to save Backbone.js model data?

I am more into front end development and have recently started exploring Backbone.js into my app. I want to persist the model data to the server. ...
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How do I rotate the Android emulator display? [duplicate]

How can I rotate the Android emulator display to see it in landscape mode? 23 Answers ...
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Difference between CMAKE_CURRENT_SOURCE_DIR and CMAKE_CURRENT_LIST_DIR

... The variables CMAKE_CURRENT_SOURCE_DIR and CMAKE_CURRENT_LIST_DIR may refer to different directories for a CMake list file that is included by another file with the include command. E.g., if a CMakeLists.txt is present in a directory project and contains the foll...
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How can I make gdb save the command history?

How can I set up gdb so that it saves the command history? When starting a new gdb session I'd like to use the arrow up keys to access the commands of the previous sessions. ...
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UTF-8: General? Bin? Unicode?

...pares as equal to combinations of other characters. For example, in German and some other languages “ß” is equal to “ss”. utf8_unicode_ci also supports contractions and ignorable characters. utf8_general_ci is a legacy collation that does not support expansions, contractions, or ignorable ...
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Visual Studio debugger - Displaying integer values in Hex

I'm using Visual Studio 2008 and I have just noticed that the debugger is displaying integer values as Hex when I hover over variables and also in the immediate window. I guess I must have hit a shortcut key accidently or something. ...
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RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com

I own foo.com and bar.com . I am managing both in Route53. foo.com hosts my site, and I'd like to direct traffic from bar.com to foo.com . I tried to set up a CNAME record for bar.com pointing to foo.com , but I got the error message: ...
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How to check if activity is in foreground or in visible background?

...k that the next activity has started because a system dialogue box pops-up and I only want to finish() ; once the user has selected an option from the dialogue box? ...
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Contributing to project on github, how to “rebase my pull request on top of master”

...The project on github is upstream , my forked repo on github is origin , and my local repo on my computer. 2 Answers ...