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What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
...s address;
:
}
Orphan Removal
JPA 2 supports an additional and more aggressive remove cascading mode
which can be specified using the orphanRemoval element of the
@OneToOne and @OneToMany annotations:
@Entity
class Employee {
:
@OneToOne(orphanRemoval=true)
private ...
Aligning textviews on the left and right edges in Android layout
I am getting started with Android. I am having trouble getting a simple layout going.
9 Answers
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Accessing JPEG EXIF rotation data in JavaScript on the client side
... The trick is that all this should happen in the browser, using JavaScript and <canvas> .
8 Answers
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Increment a value in Postgres
... want to take a value (which is an integer) in a field in a postgres table and increment it by one. For example if the table 'totals' had 2 columns, 'name' and 'total', and Bill had a total of 203, what would be the SQL statement I'd use in order to move Bill's total to 204?
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NSObject +load and +initialize - What do they do?
I'm interested in understanding the circumstances leading a developer to override +initialize or +load. Documentation makes it clear these methods are called for you by the Objective-C runtime, but that's really all that is clear from the documentation of those methods. :-)
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How to make System.out.println() shorter
...d the lib in order to use the shorter expression of System.out.println() and where should I place that lib.
12 Answers
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Best practices for using Markers in SLF4J/Logback
We are using SLF4J+Logback combination at our project for a while now and are quite happy with it, but our logging strategy is fairly simple, using straightforward class based loggers and no fancy stuff like MDC or Markers.
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What is eager loading?
...on't do any calculations until you access an element of the result matrix; and
Over-eager loading: this is where you try and anticipate what the user will ask for and preload it.
I hope that makes sense in the context you're seeing it.
Let me give you a "Webby" example.
Imagine a page with rollo...
Concatenate multiple files but include filename as section headers
...es into one large file in terminal. I know I can do this using the cat command. However, I would like the filename of each file to precede the "data dump" for that file. Anyone know how to do this?
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How do I mount a remote Linux folder in Windows through SSH? [closed]
...m admin/shell programming class. Although ssh works fine for executing commands like ls, pwd, etc editors do not work well with my screen reader and an ssh session. I was wondering if it is possible to mount a Linux folder over ssh so it appears as a windows drive? This way I could edit any files I ...