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Difference between DTO, VO, POJO, JavaBeans?

..., and allows access to properties using getter and setter methods. In order to function as a JavaBean class, an object class must obey certain conventions about method naming, construction, and behavior. These conventions make it possible to have tools that can use, reuse, replace, and connect ...
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What is BSON and exactly how is it different from JSON?

...pes such  as Date and binary which are not supported in JSON also provide ordered fields in order for it to be efficient for encoding and decoding within different languages.  In other word we can say  BSON is just binary JSON ( a superset of JSON with some more data types, most importantl...
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D Programming Language in the real world? [closed]

...er projects that for whatever reason can afford to ditch the C++ legacy in order to gain a programming language that's much more enjoyable to use, and perhaps more productive too. But until there's a huge number of grass-roots users there won't be much in the way of big corporate users I suspect. ...
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Case insensitive searching in Oracle

...) or lower(column_1), as appropriate, this may force a full table scan. In order to avoid this you can create a function-based index. create index my_index on my_table ( lower(column_1) ); If you're using LIKE then you have to concatenate a % around the string you're searching for. select * from...
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Byte order mark screws up file reading in Java

I'm trying to read CSV files using Java. Some of the files may have a byte order mark in the beginning, but not all. When present, the byte order gets read along with the rest of the first line, thus causing problems with string compares. ...
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Drawing Isometric game worlds

...ng to be a pitfall to implementing the above example code -- the rendering order will cause tiles that are supposed to be behind certain tiles to be drawn on top of the tiles in front: In order to amend this problem, the inner for-loop's order must be reversed -- starting from the highest value, ...
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ExecutorService, how to wait for all tasks to finish

... What if in order for a task to finish it must schedule further tasks? For example, you could make a multithreaded tree traversal which hands off branches to worker threads. In that case, since the ExecutorService is shut down instantly ...
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DDD - the rule that Entities can't access Repositories directly

...e complicated validation rules. Let's say you're Amazon.com. Have you ever ordered something with an expired credit card? I have, where I haven't updated the card and bought something. It accepts the order and the UI informs me that everything is peachy. About 15 minutes later, I'll get an e-mail sa...
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How do I import the javax.servlet API in my Eclipse project?

...provided libraries are "container neutral" but classloading precedence and ordering. If container-provided libraries are loaded by the wrong classloader (e.g. via webapp classloader), things may go havoc, even if it's "coincidentally" exactly the same version. Just do not provide container-provided ...
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Remove an element from a Bash array

...ating over them backwards (so deleting elements doesn't screw up iteration order). To get the indices you need to access the input array by name, which can be done via bash variable indirection x=1; varname=x; echo ${!varname} # prints "1". You can't access arrays by name like aryname=a; echo "${$a...