@Target(value=METHOD)
@Retention(value=RUNTIME)
public @interface PostLoad
Entity
of any of
the specified kinds is loaded from the datastore. This can happen as the
result of a get() operation or a query. If
kinds()
is
not provided the callback will execute for all kinds. Methods with this
annotation must return
void
, must accept a single argument of type
PostLoadContext
, must not throw any checked exceptions, must not be
static, and must belong to a class with a no-arg constructor. Neither the
method nor the no-arg constructor of the class to which it belongs are
required to be public. Methods with this annotation are free to throw any
unchecked exception they like. Throwing an unchecked exception will prevent
callbacks that have not yet been executed from running, and the exception
will propagate to the code that invoked the datastore operation that
resulted in the invocation of the callback. Throwing an unchecked exception
from a callback will
not
have any impact on the result of the
datastore operation. Methods with this annotation will not be invoked if
the datastore operation fails.
Modifier and Type | Optional Element and Description |
---|---|
java.lang.String[]
|
kinds
The kinds to which this callback applies.
|