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Spring Java Config: how do you create a prototype-scoped @Bean with runtime arguments?
...fig File:
@Configuration
public class ServiceConfig {
// only here to demo execution order
private int count = 1;
@Bean
@Scope(value = "prototype")
public TransferService myFirstService(String param) {
System.out.println("value of count:" + count++);
return new Tr...
Efficiently convert rows to columns in sql server
...e in (Firstname, Amount, PostalCode, LastName, AccountNumber)
) piv;
See Demo.
Pivot with unknown number of columnnames
If you have an unknown number of columnnames that you want to transpose, then you can use dynamic SQL:
DECLARE @cols AS NVARCHAR(MAX),
@query AS NVARCHAR(MAX)
select @co...
Generate MD5 hash string with T-SQL
...racters use:
CONVERT(VARCHAR(32), HashBytes('MD5', 'email@dot.com'), 2)
Demo
For binary data (without the limit of 8000 bytes) use:
CONVERT(VARCHAR(32), master.sys.fn_repl_hash_binary(@binary_data), 2)
Demo
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Is it possible to make abstract classes in Python?
...se class
Traceback (most recent call last):
File "/Users/irvkalb/Desktop/Demo files/Abstract.py", line 16, in <module>
baseObj = Base()
File "/Users/irvkalb/Desktop/Demo files/Abstract.py", line 4, in __init__
raise Exception('Base is an abstract class and cannot be instantiated di...
Sharing a result queue among several processes
...== '__main__':
with Pool(4) as pool:
print(pool._outqueue) # DEMO
results = [pool.apply_async(busy_foo, (i,)) for i in range(10)]
# `.apply_async()` immediately returns AsyncResult (ApplyResult) object
print(results[0]) # DEMO
results = [res.get() for r...
AngularJS access scope from outside js function
...;
scope.$apply(function(){
scope.msg = 'Superhero';
})
}
Demo: Fiddle
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How to disable scrolling temporarily?
...
Mouse & Touch scroll and Buttons associated with scrolling.
[Working demo]
// left: 37, up: 38, right: 39, down: 40,
// spacebar: 32, pageup: 33, pagedown: 34, end: 35, home: 36
var keys = {37: 1, 38: 1, 39: 1, 40: 1};
function preventDefault(e) {
e.preventDefault();
}
function preventDef...
Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
...re accelerated devices a bitmap caching implementation should fit better)
Demo video with the animation is Here (Slow frame rate cause of the screen cast. Actual performance is very fast)
Usage:
layout = new ThreeLayout(this, 3);
layout.setAnimationDuration(1000);
setContentView(layout);
layout...
Accessing nested JavaScript objects and arays by string path
...o;
}
Usage::
Object.byString(someObj, 'part3[0].name');
See a working demo at http://jsfiddle.net/alnitak/hEsys/
EDIT some have noticed that this code will throw an error if passed a string where the left-most indexes don't correspond to a correctly nested entry within the object. This is a ...
What does the caret operator (^) in Python do?
...lts to true if one (and only one) of the operands (evaluates to) true.
To demonstrate:
>>> 0^0
0
>>> 1^1
0
>>> 1^0
1
>>> 0^1
1
To explain one of your own examples:
>>> 8^3
11
Think about it this way:
1000 # 8 (binary)
0011 # 3 (binary)
---- # ...