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JPA: How to have one-to-many relation of the same Entity type
... the relationship is the same. The general case is detailed in Section 2.10.2 of the JPA 2.0 spec.
Here's a worked example. First, the entity class A:
@Entity
public class A implements Serializable {
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
private Long id;
@ManyToOne
...
What differences, if any, between C++03 and C++11 can be detected at run-time?
...le to write a function, which, when compiled with a C compiler will return 0, and when compiled with a C++ compiler, will return 1 (the trivial sulution with
#ifdef __cplusplus is not interesting).
...
What is the difference between Spring's GA, RC and M2 releases?
Spring's 3.0 version is now GA release, before that they have launched 3.0 RC1 , RC2 version Also, there was Spring 3.0 M2 version. What's the difference between GA, RC, M versions?
...
How do I make a fully statically linked .exe with Visual Studio Express 2005?
...C++ environment is the free and largely excellent Microsoft Visual Studio 2005 Express edition. From time to time I have sent release .exe files to other people with pleasing results. However recently I made the disturbing discovery that the pleasing results were based on more luck that I would like...
How do I cast a variable in Scala?
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answered May 31 '09 at 15:21
Daniel SpiewakDaniel Spiewak
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Difference between Groovy Binary and Source release?
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answered Mar 12 '11 at 6:07
k3bk3b
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val() vs. text() for textarea
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Christophe
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answered Jan 13 '12 at 17:00
Rob WRob W
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How do I specify different Layouts in the ASP.NET MVC 3 razor ViewStart file?
... |
edited Mar 1 '11 at 23:05
answered Mar 1 '11 at 22:51
Da...
How expensive is RTTI?
...e in runtime memory usage.
A quick experiment (using GCC 4.4.3 on Ubuntu 10.04 64-bit) shows that -fno-rtti actually increases the binary size of a simple test program by a few hundred bytes. This happens consistently across combinations of -g and -O3. I'm not sure why the size would increase; one ...