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What are the differences between the different saving methods in Hibernate?
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there are many errors here... e.g. 1) ´save()´ doesn't return an "attached object", it returns the ´id´; 2) ´persist()´ isn't guaranteed to set the ´id´, neither it "persists object to DB"; ...
– Eugen Labun
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What is an ORM, how does it work, and how should I use one? [closed]
... case with a pseudo language:
You have a book class, you want to retrieve all the books of which the author is "Linus". Manually, you would do something like that:
book_list = new List();
sql = "SELECT book FROM library WHERE author = 'Linus'";
data = query(sql); // I over simplify ...
while (row ...
Socket 错误返回码详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
Socket 错误返回码详解Socket error 0 - Directly send errorSocket error 10004 - Interrupted function callSocket error 10013 - Permission...Socket error 0 - Directly send error
Socket error 10004 - Interrupted function call
Socket error 10013 - Permission denied
Socket error 10014 - Bad ad...
How to find out what type of a Mat object is with Mat::type() in OpenCV
...";
r += (chans+'0');
return r;
}
If M is a var of type Mat you can call it like so:
string ty = type2str( M.type() );
printf("Matrix: %s %dx%d \n", ty.c_str(), M.cols, M.rows );
Will output data such as:
Matrix: 8UC3 640x480
Matrix: 64FC1 3x2
Its worth noting that there are also Matr...
Use Mockito to mock some methods but not others
... question, yes, you can mock some methods without mocking others. This is called a partial mock. See the Mockito documentation on partial mocks for more information.
For your example, you can do something like the following, in your test:
Stock stock = mock(Stock.class);
when(stock.getPrice()).the...
Parse date string and change format
...15 2010, "%a %b %d %Y").strftime("%d/%m/%Y") Is it correct ? but i got an error.
– Nimmy
Feb 15 '10 at 11:09
1
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How to exclude this / current / dot folder from find “type d”
...For example, if you try find dir/* -type d -exec rmdir {} \;, you will see errors.
– plhn
Mar 24 '17 at 3:05
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Java: Calling a super method which calls an overridden method
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The keyword super doesn't "stick". Every method call is handled individually, so even if you got to SuperClass.method1() by calling super, that doesn't influence any other method call that you might make in the future.
That means there is no direct way to call SuperClass.m...
process.env.NODE_ENV is undefined
... process.env.NODE_ENV).trim() === 'dev') // true , as it will not throw an error even if process.env.NODE_ENV is undefined.
– gregn3
Jun 8 at 14:14
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How to move child element from one parent to another using jQuery [duplicate]
... happy.
– geekinit
Jan 17 '19 at 15:05
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