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JPA OneToMany not deleting child
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In addition to cletus' answer, JPA 2.0, final since december 2010, introduces an orphanRemoval attribute on @OneToMany annotations.
For more details see this blog entry.
Note that since the spec is relatively new, not all JPA 1 provider have a final JPA 2 implementation. For example, ...
ImportError: No module named six
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answered Dec 20 '12 at 8:19
Sylvain DefresneSylvain Defresne
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How do you reinstall an app's dependencies using npm?
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answered Oct 12 '12 at 20:21
Vadim BaryshevVadim Baryshev
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Are soft deletes a good idea? [duplicate]
...g deletes itself.
– MusiGenesis
Dec 20 '10 at 20:52
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@MusiGenesis - And what about cascade resto...
psycopg2: insert multiple rows with one query
... times faster than executemany. In my case tup is a tuple containing about 2000 rows. It took about 10 seconds when using this method:
args_str = ','.join(cur.mogrify("(%s,%s,%s,%s,%s,%s,%s,%s,%s)", x) for x in tup)
cur.execute("INSERT INTO table VALUES " + args_str)
and 2 minutes when using thi...
Check if string matches pattern
... though.
– CrazyCasta
Nov 11 '16 at 20:10
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Reading Xml with XmlReader in C#
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edited Jan 27 at 20:12
ruffin
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answere...
How to simulate a mouse click using JavaScript?
...option doesn't
– Silver Ringvee
Sep 20 '16 at 7:41
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How to make a new List in Java
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edited May 20 '19 at 13:11
answered Feb 7 '18 at 21:12
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Best Practices for Laravel 4 Helpers and Basic Functions?
...simple function here?
– Webinan
Oct 20 '13 at 21:13
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This doesn't work if you don't edit the com...