CODEWITHSUNDEEP
javadesign-patternssingletonlog4jfactory-pattern
JWhiz
JWhiz

Reputation: 681

What is the pattern used in log4j

I needed to understand the design pattern(s) used in log4j library. Since it provides loggers for various classes, it it a factory ?

Any more inputs/pointers on these is greatly appreciated..

Upvotes: 3

Views: 4371

Answers (4)

OEH
OEH

Reputation: 705

It is using a mixture of design pattern, is using Singleton and Chain of responsibilities patterns.

I've checked on a e-learning website.

Upvotes: 1

Venkat
Venkat

Reputation: 39

Log4j uses singleton design pattern, as it will have single instance of class. check this for reference http://www.oodesign.com/singleton-pattern.html

Upvotes: 3

Sony
Sony

Reputation: 351

Log4j is Singleton Pattern which comes under Creational design pattern

Upvotes: 1

user357206
user357206

Reputation: 87

Which kind of designpattern do you mean? Creational, behavioral or structural?

If you mean creational, I´d agree with the factory-pattern, but when you want to be sure, you could ask Ceki Gülcü ([email protected], [email protected] or through his profile), the designer of log4j, who could and would answer this question.

Upvotes: 1

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