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What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
...en in the specification does not give more details, so it does not give an idea of the level of complexity.
When not using a second level cache it is usually not a problem to do not have the relationship methods correctly implemented because the instances get discarded at the end of the transaction...
Get real path from URI, Android KitKat new storage access framework [duplicate]
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Yes but the whole idea of the DocumentsProvider is that it abstracts away the underlying data, hence your method is not safe to use, it could be an image in an online service, hence not file uri, hence the method is not safe to use.
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What is the apply function in Scala?
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It comes from the idea that you often want to apply something to an object. The more accurate example is the one of factories. When you have a factory, you want to apply parameter to it to create an object.
Scala guys thought that, as it occu...
What exactly is Arel in Rails 3.0?
...ment for named_scopes. In fact, ARel is pretty much the realization of the idea that "every query is a named_scope". And, whaddayaknow: both were written by the same guy.
and that it uses objects instead of queries.
No, it uses objects as queries.
why is this better?
Ruby is an object-oriented l...
Python - write() versus writelines() and concatenated strings
...e a string for a newline in write() but I can use it in writelines()?
The idea is the following: if you want to write a single string you can do this with write(). If you have a sequence of strings you can write them all using writelines().
write(arg) expects a string as argument and writes it to ...
Why doesn't the JVM cache JIT compiled code?
...d in the JVM implementation, but I can think of some plausible ones:
The idea of Java is to be a write-once-run-anywhere language, and putting precompiled stuff into the class file is kind of violating that (only "kind of" because of course the actual byte code would still be there)
It would incre...
What are the differences between double-dot “..” and triple-dot “…” in Git diff commit ranges?
... I like your diagrams. I came up with my own a while ago too. I have some ideas for my own git diff diagrams that I'll make later.
– user456814
Jul 31 '14 at 23:53
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Why are C# 4 optional parameters defined on interface not enforced on implementing class?
...re one possible way to characterize "extension interfaces". An interesting idea.
– Eric Lippert
Jan 13 '12 at 0:19
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What's the difference between size_t and int in C++?
...t's because size_t can be anything other than an int (maybe a struct). The idea is that it decouples it's job from the underlying type.
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How do you keep user.config settings across different assembly versions in .net?
...settings to be installed into a new version-specific directory. Thus, the idea above probably doesn't help you, but may provide some food for thought.
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