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JPA: unidirectional many-to-one and cascading delete
... private long id;
@Column(nullable = false, length = 50)
private String firstName;
}
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Why is std::map implemented as a red-black tree?
...cause the main operation is already O(log n). even after all the slightly extra work that AVL trees do results in a more tightly balanced tree which leads to slightly faster lookups. so it is a perfectly valid tradeoff and does not make AVL trees inferior to red-black trees.
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Split a string by a delimiter in python
How to split this string where __ is the delimiter
3 Answers
3
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How to supply value to an annotation from a Constant java
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Compile constants can only be primitives and Strings:
15.28. Constant Expressions
A compile-time constant expression is an expression denoting a value of primitive type or a String that does not complete abruptly and is composed using only the following:
Literals of p...
How can I easily convert DataReader to List? [duplicate]
... [Field("id")]
public int? CustomerId;
[Field("name")]
public string CustomerName;
}
...
using (DataReader reader = ...)
{
List<CustomerDTO> customers = reader.AutoMap<CustomerDTO>()
.ToList();
}
(AutoMap(), is an extension met...
How can I determine if a String is non-null and not only whitespace in Groovy?
Groovy adds the isAllWhitespace() method to Strings, which is great, but there doesn't seem to be a good way of determining if a String has something other than just white space in it.
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Why does csvwriter.writerow() put a comma after each character?
... url and appends the /names at the end and opens the page and prints the string to test1.csv :
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When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]
...g on the set of features you require of Twisted, the (relatively painless) extra complexity of mixing Gevent and Twisted might not be worth the trouble.)
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How do I remove all HTML tags from a string without knowing which tags are in it?
...there any easy way to remove all HTML tags or ANYTHING HTML related from a string?
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Python != operation vs “is not”
... but are not identical. (They are not the same object in memory.)
Example: Strings
>>> greeting = "It's a beautiful day in the neighbourhood."
>>> a = unicode(greeting)
>>> b = unicode(greeting)
>>> a is b
False
>>> a == b
True
Note: I use unicode stri...