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JPA eager fetch does not join
...t default strategies for JPAQL/Criteria vs em.find(). See vladmihalcea.com/2013/10/17/… and the reference documentation.
– Joshua Davis
Nov 4 '15 at 20:14
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Java GUI frameworks. What to choose? Swing, SWT, AWT, SwingX, JGoodies, JavaFX, Apache Pivot? [close
... Java 1.4 than a UI framework. Without JFace, you're missing many major UI components or very important features of UI components (like filtering on tables).
If SWT is missing a feature that you need, the framework is somewhat hostile to extending it. For example, you can't extend any class in it (...
In a django model custom save() method, how should you identify a new object?
... This MAY NOT WORK in some cases. Please check this answer: stackoverflow.com/a/940928/145349
– fjsj
Mar 5 '15 at 16:37
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Structs versus classes
...Structs consume less heap memory (because they are smaller and more easily compacted, not because they are "on the stack"). But they take longer to copy than a reference copy. I don't know what your performance metrics are for memory usage or speed; there's a tradeoff here and you're the person who ...
AWS S3: how do I see how much disk space is using
...t size and number of objects that is updated daily. About time! aws.amazon.com/blogs/aws/…
– cudds
Jul 28 '15 at 23:13
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final keyword in method parameters [duplicate]
... It certainly makes a copy (there is an optimization where the compiler doesn't make a copy, when there is no difference with making a copy). However you have to keep in mind that in the case of an object. The object really only is a reference to an object. So in that case you will get a...
Java: is there a map function?
... that while with Guava you can do this, you might not want to: code.google.com/p/guava-libraries/wiki/FunctionalExplained (read the "Caveats" section).
– Adam Parkin
Mar 7 '13 at 22:32
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Random alpha-numeric string in JavaScript? [duplicate]
...nd for random() is excluded and chars.length will be no reached: w3schools.com/jsref/jsref_random.asp
– axelbrz
Apr 6 '15 at 10:33
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How do I get textual contents from BLOB in Oracle SQL
...(at most) of the text inside the blob, provided all the character sets are compatible (original CS of the text stored in the BLOB, CS of the database used for VARCHAR2) :
select utl_raw.cast_to_varchar2(dbms_lob.substr(BLOB_FIELD)) from TABLE_WITH_BLOB where ID = '<row id>';
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Disposing WPF User Controls
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Because many controls reuse COM components or other unmanaged resources that were not coded with a view to being left hanging around indefinitely, or finalized on a thread pool thread, and expect/require deterministic deallocation.
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