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System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
In Java, what are the performance and resource implications of using
8 Answers
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Jinja2 template variable if None Object set a default value
...ld downvote this, since it's not a good answer to the original question... and yet at the same time, knowing about default is exactly what I needed for my particular case, so... simply not voting. (An edit to this answer might well earn it an upvote, except that I think it's likely hard to apply de...
Spring Data JPA find by embedded object property
...f an embedded object in that entity. Does anyone know if this is possible, and if so how?
4 Answers
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Can I disable autolayout for a specific subview at runtime?
...s a kind of document view that wraps to its content which is then scrolled and zoomed around a superview by manipulating the frame origin. Autolayout fights with this at runtime.
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Entity Framework Provider type could not be loaded?
...ed this too. If you create a library that uses EF, VS will put the EF.dll and the EF.SqlServer.dll into that build folder. But if you now have another program make use of your library, only the EF.dll will be put into this build folder. The EF.SqlServer.dll is missing. If you add it manually to ...
How can I dynamically set the position of view in Android?
... to use setLayoutParams(...).
If you can limit your support to Honeycomb and up you can use the setX(...), setY(...), setLeft(...), setTop(...), etc.
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Null or default comparison of generic argument in C#
...is respects IEquatable<T> (without boxing) as well as object.Equals, and handles all the Nullable<T> "lifted" nuances. Hence:
if(EqualityComparer<T>.Default.Equals(obj, default(T))) {
return obj;
}
This will match:
null for classes
null (empty) for Nullable<T>
zero/f...
How to name factory like methods?
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Some random thoughts:
'Create' fits the feature better than most other words. The next best word I can think of off the top of my head is 'Construct'. In the past, 'Alloc' (allocate) might have been used in similar situations, re...
What is the purpose of a question mark after a type (for example: int? myVariable)?
...d the values true, false, or
null. The ability to assign null to numeric and Boolean types is
especially useful when you are dealing with databases and other data
types that contain elements that may not be assigned a value. For
example, a Boolean field in a database can store the values tru...
In JPA 2, using a CriteriaQuery, how to count results
I am rather new to JPA 2 and it's CriteriaBuilder / CriteriaQuery API:
7 Answers
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