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javax.ejb
Annotation Type Lock

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@Target(value={TYPE,METHOD})
@Retention(value=RUNTIME)
public @interface Lock

Declares a concurrency lock for a singleton session bean with container managed concurrency.

This annotation may be specified on the bean class, the business methods of the bean class or both. Specifying the annotation on a business method overrides the value specified at class level, if any.

If this annotation is not used, a value of Lock(WRITE) is assumed.

Since:

EJB 3.1

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Optional Element Summary
LockType	value

value

public abstract LockType value

Default:

javax.ejb.LockType.WRITE

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