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What are detached, persistent and transient objects in hibernate?
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Now, if we close the Hibernate Session, the persistent instance will become a detached instance: it isn't attached to a Session anymore (but can still be modified and reattached to a new Session later though).
All this is clearly explained in the whole Chapter 10. Working with objects of the Hi...
Does the join order matter in SQL?
...) OUTER joins, yes, the order matters - and (updated) things are much more complicated.
First, outer joins are not commutative, so a LEFT JOIN b is not the same as b LEFT JOIN a
Outer joins are not associative either, so in your examples which involve both (commutativity and associativity) propert...
What is the difference between Collections.emptyList() and Collections.EMPTY_LIST
.../returning the untyped version (EMPTY_LIST/EMPTY_SET/EMPTY_MAP) causes the compiler to give up on generics type checking within the given call chain. It essentially figures that it has wandered into old code lacking generic types and gives up.
– Matt Passell
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What is the use of the pipe symbol in YAML?
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How to deal with “data of class uneval” error from ggplot2?
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Groovy / grails how to determine a data type?
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Printing newlines with print() in R
...n" to the string passed to cat() to get a newline after your message. E.g. compare the above to the same cat() output:
> cat("File not supplied.\nUsage: ./program F=filename")
File not supplied.
Usage: ./program F=filename>
and
> cat("File not supplied.\nUsage: ./program F=filename","\n...
Visual studio long compilation when replacing int with double
My copy of VS2013 Ultimate compiles this code for 60+ seconds:
2 Answers
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What arguments are passed into AsyncTask?
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Progress, the type of the progress units published during the background computation.
Result, the type of the result of the background computation.
Not all types are always used by an asynchronous task. To mark a type as unused, simply use the type Void:
private class MyTask extends AsyncTask&...
optional parameters in SQL Server stored proc?
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