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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association

...ch magic territory. I've been struggling with this issue and when followed word by word for a @OneToOne, the child rows get updated with a null in their FKey column that references the parent. – Ashesh Mar 5 '16 at 17:59 ...
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Why should we typedef a struct so often in C?

... return a; } becomes cleaner when you don't need to see the "struct" keyword all over the place, it looks more as if there really is a type called "Point" in your language. Which, after the typedef, is the case I guess. Also note that while your example (and mine) omitted naming the struct itse...
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Is the != check thread safe?

...orrect (from the perspective of the application's requirements). In other words, the set of possible behaviours (i.e. the set of "well-formed executions") is defined, but we can't say which of those behaviours will occur. The compiler is allowed to combine and reorder loads and save (and do other ...
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Java generics type erasure: when and what happens?

...ve this information at runtime, despite in a very restricted way. In other words: Java does provide reified generics in a very restricted way. Regarding type erasure Notice that, at compile-time, the compiler has full type information available but this information is intentionally dropped in gene...
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What is a 'Closure'?

...defined in it (their meanings are clear), so you can evaluate it. In other words, it is self-contained. But if you have a function like this: function open(x) { return x*y + 3; } it is an open expression because there are symbols in it which have not been defined in it. Namely, y. When looking...
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Is there a max array length limit in C++?

...that the maximum limit of an array is the maximum value of the processor's word. This is due to the indexing operator. For example, a machine may have a word size of 16 bits but an addressing register of 32 bits. A chunk of memory is limited in size by the parameter passed to new or malloc. A ch...
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What is the difference between Polymer elements and AngularJS directives?

...Rob Dodson and Eric Bidelman It's funny how nobody here has mentioned the word scope. I think that is one of the major differences. There are many differences, but they also have a heck of a lot in common when it comes to creating modular lego like pieces of functionality for an app. I think it's...
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What is the relationship between Looper, Handler and MessageQueue in Android?

.... That's it. This is all about Looper, Handler, and MessageQueue. My last word is, so basically Looper is a class that is made to address a problem that occurs in GUI framework. But this kind of needs also can happen in other situations as well. Actually it is a pretty famous pattern for multi thre...
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Definition of “downstream” and “upstream”

... @MycrofD words can be used as adjectives and nouns depending on the context – reggaeguitar Sep 21 '18 at 22:15 1 ...
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What's so bad about Template Haskell?

...the Haskell community as an unfortunate convenience. It's hard to put into words exactly what I have observed in this regard, but consider these few examples ...