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Something like a Singleton with injection [message #899576]

Wed, 01 August 2012 13:48

Tommaso De Sica

Messages: 131
Registered: March 2012
Location: Italy

Senior Member

Goodmorning all,

I'm going to realize something like a Singleton object in Eclipse 4.
I've got a class (MyLogger) and other classes should share an istance of it.
This idea can be realized through injection? I tried to use @Singleton annotation, but I did not understand how it works.

Very thank you.

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Re: Something like a Singleton with injection [message #899580 is a reply to message #899576]

Wed, 01 August 2012 14:00

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

Well I'm not sure about the @Singleton contract either, the easiest way
although to inject the same instance into all your POJOs is to put the
MyLogger-Instance in the IEclipseContext of the MApplication.

Tom

Am 01.08.12 15:48, schrieb Tommaso De Sica:
> Goodmorning all,
>
> I'm going to realize something like a Singleton object in Eclipse 4.
> I've got a class (MyLogger) and other classes should share an istance of
> it.
> This idea can be realized through injection? I tried to use @Singleton
> annotation, but I did not understand how it works.
>
> Very thank you.

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Re: Something like a Singleton with injection [message #906353 is a reply to message #899580]

Sat, 01 September 2012 07:49

Tommaso De Sica

Messages: 131
Registered: March 2012
Location: Italy

Senior Member

I've realized my purprose with use of

@Creatable
@Singleton
public class MyClass{...}

Thanks Thomas Smile

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Re: Something like a Singleton with injection [message #910841 is a reply to message #906353]

Mon, 10 September 2012 13:31

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

Did that really create only one MyClass? Or will it instantiate multiple instances of it?

PW

Paul Webster
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