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Hibernate Error: org.hibernate.NonUniqueObjectException: a different object with the same identifier
...mary key combination (column 1 and column 2). Now, you have removed 5 rows from the table at some point of time. Now, if you try to add the same 10 rows again, while hibernate tries to persist the objects in database, 5 rows which were already removed will be added without errors. Now the remaining ...
Create an instance of a class from a string
...
How to use it without casting and how to do the cast from the given string??
– TaW
Apr 25 '16 at 12:16
2
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Visual C++: How to disable specific linker warnings?
I'm using a library from CGAL which during the linking stage of my code compilation produces a lot of linking warnings of this form:
...
Call apply-like function on each row of dataframe with multiple arguments from each row
...nction on the row, and the input of the function is using multiple columns from that row. For example, let's say I have this data and this testFunc which accepts two args:
...
How to break out of a loop from inside a switch?
...erstand the terminating clause.
Loops that repeat forever prevent the user from terminating the program from within the program.
Is inefficient.
There are multiple loop termination conditions, including checking for "true".
Is prone to bugs.
Cannot easily determine where to put code that will ...
python generator “send” function purpose?
...ite coroutines
def coroutine():
for i in range(1, 10):
print("From generator {}".format((yield i)))
c = coroutine()
c.send(None)
try:
while True:
print("From user {}".format(c.send(1)))
except StopIteration: pass
prints
From generator 1
From user 2
From generator 1
From u...
Simplest way to read json from a URL in java
...t be a dumb question but what is the simplest way to read and parse JSON from URL in Java ?
11 Answers
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Why not be dependently typed?
...e yet in Haskell, although DataKinds gets very close).
Edit: Apparently, from this point forward, I was wrong (see @pigworker's comment). I'll preserve the rest of this as a record of the myths I've been fed. :P
The issue with moving to full dependent typing, from what I've heard, is that it ...
How to exclude a module from a Maven reactor build?
...e -pl !<module_name>,!<module_name> to exclude certain modules from the reactor build.
See this feature request: https://issues.apache.org/jira/browse/MNG-5230
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JavaScript: Class.method vs. Class.prototype.method
... sayHi is an instance method of Person.
Below, is how to create an object from Person constructor.
var aminu = new Person("Aminu", "Abubakar");
Using the static method isPerson.
Person.isPerson(aminu); // will return true
Using the instance method sayHi.
aminu.sayHi(); // will return "Hi Aminu...