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encryption/decryption with multiple keys
...GP clients in general usually encrypt the actual data with a symmetric key called a "session key". The session key is then encrypted with each "recipient key" (i.e. the ones you specify with -r/--recipient). This is sometimes referred to as a hybrid cipher. Right now, I believe GnuPG by default u...
Does name length impact performance in Redis?
...e operation than using a longer key.
Redis comes with a benchmark utility called redis-benchmark, if you modify the "GET" test in src/redis-benchmark.c so that they key is just "foo", you can run the short key test after a make install:
diff --git a/src/redis-benchmark.c b/src/redis-benchmark.c
--...
Using Mockito to test abstract classes
..." subclass - the Mock is the subclass.
use Mockito.mock(My.class, Mockito.CALLS_REAL_METHODS), then mock any abstract methods that are invoked.
Example:
public abstract class My {
public Result methodUnderTest() { ... }
protected abstract void methodIDontCareAbout();
}
public class MyTest {
...
List comprehension rebinds names even after scope of comprehension. Is this right?
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I'll add that although Guido calls it a "dirty little secret", many considered it a feature, not a bug.
– Steven Rumbalski
Nov 10 '11 at 20:32
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Enabling ProGuard in Eclipse for Android
... confusing because the project.properties also says # This file is automatically generated by Android Tools. # Do not modify this file -- YOUR CHANGES WILL BE ERASED!
– Todd Painton
Sep 10 '12 at 18:57
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How to save MySQL query output to excel or .txt file? [duplicate]
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From Save MySQL query results into a text or CSV file:
MySQL provides an easy mechanism for writing the results of a select
statement into a text file on the server. Using extended options of
the INTO OUTFILE nomenclature, it is possible to create a comma
separated value (CSV) which ...
PHP Fatal error: Using $this when not in object context
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@Sarfraz No offense, but it is still wrong. You can call an instance method with ::. It is against E_STRICT, but it does work as long as the method body does not reference the instance scope, e.g. uses $this. Also, self::foo will not point to $this->foo. It references a cla...
Function overloading by return type?
Why don't more mainstream statically typed languages support function/method overloading by return type? I can't think of any that do. It seems no less useful or reasonable than supporting overload by parameter type. How come it's so much less popular?
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Javascript - Open a given URL in a new tab by clicking a button
...its as follows:
onclick="window.open(this.href,'popUpWindow','height=400,width=600,left=10,top=10,,scrollbars=yes,menubar=no'); return false;"
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Refreshing OAuth token using Retrofit without modifying all calls
...great, we use the RequestInterceptor to include the access token with each call.
However there will be times, when the access token will expire, and the token needs to be refreshed. When the token expires, the next call will return with an Unauthorized HTTP code, so that's easy to monitor.
We could ...