Easy peasy, Make it thread safe by adding the synchronized keyword.
public static *synchronized* C getInstance() throws YourException {
if (mInstance == null ) {
mInstance = new C(); //it throws YourException
}
On Friday, May 4, 2012 10:17:37 AM UTC-4, Daniel Drozdzewski wrote:
>
> On 4 May 2012 14:45, Adriano B. Godinho <[email protected]> wrote:
> > You can instantiate your singleton instance in a static method:
> >
> > class C{
> >
> > private static C mInstance = null;
> >
> > public static C getInstance() throws YourException {
> > if (mInstance == null ) {
> > mInstance = new C(); //it throws YourException
> > }
> >
> > return mInstance;
> > }
> >
> > }
>
>
> ...which changes the original code from eager initialisation to lazy
> initialisation (not a bad thing per se and optimisation is some
> circumstances), but it remains not thread safe.
>
>
> --
> Daniel Drozdzewski
>
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