Le 20/03/2017 à 07:37, Stefan Seelmann a écrit :
> On 03/20/2017 02:10 AM, Emmanuel Lécharny wrote:
>> public class BooleanSyntaxChecker extends SyntaxChecker
>> {
>> /**
>> * A static instance of BooleanSyntaxChecker
>> */
>> public static final BooleanSyntaxChecker INSTANCE = new
>> BooleanSyntaxChecker( SchemaConstants.BOOLEAN_SYNTAX );
>>
>> /** A static instance of the builder */
>> private static final Builder BUILDER_INSTANCE = new Builder();
>> /**
>> * @return An instance of the Builder for this class
>> */
>> public static Builder builder()
>> {
>> return BUILDER_INSTANCE;
>> }
> Hm, why a static builder? As it is not immutable there's a chance of
> race condition in case two threads use it concurrently.
That can't happen, because we have :
private static final Builder BUILDER_INSTANCE = new Builder();
that is guaranteed to be built during the class loading.
--
Emmanuel Lecharny
Symas.com
directory.apache.org
