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add comments about null logger

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Trismegiste
2013-05-13 21:57:52 +02:00
parent 397e18da8b
commit f157729ea4
2 changed files with 6 additions and 1 deletions
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2
NullObject/LoggerInterface.php
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@ -8,6 +8,8 @@ namespace DesignPatterns\NullObject;
/** /**
* LoggerInterface is a contract for logging something * LoggerInterface is a contract for logging something
*
* Key-feaature : NullLogger MUST inherit from this interface like any other Loggers
*/ */
interface LoggerInterface interface LoggerInterface
{ {

5
NullObject/NullLogger.php
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@ -26,13 +26,16 @@ namespace DesignPatterns\NullObject;
* *
* Performance concerns : ok there is a call for nothing but we spare an "if is_null" * Performance concerns : ok there is a call for nothing but we spare an "if is_null"
* I didn't run a benchmark but I think it's equivalent. * I didn't run a benchmark but I think it's equivalent.
*
* Key feature : of course this logger MUST implement the same interface (or abstract)
* like the other loggers.
*/ */
class NullLogger implements LoggerInterface class NullLogger implements LoggerInterface
{ {
public function log($str) public function log($str)
{ {
// do nothing
} }
} }