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This package defines the API for plugging in bytecode libraries
for usage by Hibernate. Hibernate uses these bytecode libraries
in three scenarios:
-
Reflection optimization - to speed up the performance of
POJO entity and component construction and field/property access
-
Proxy generation - runtime building of proxies used for
deferred loading of lazy entities
-
Field-level interception - build-time instrumentation of entity
classes for the purpose of intercepting field-level access (read/write)
for both lazy loading and dirty tracking.
Note that for field-level interception, simply plugging in a new {@link BytecodeProvider}
is not enough for Hibernate to be able to recognize new providers. You would additionally
need to make appropriate code changes to the {@link org.hibernate.intercept.Helper}
class. This is because the detection of these enhanced classes is needed in a static
environment (i.e. outside the scope of any {@link org.hibernate.SessionFactory}.
Note that in the current form the ability to specify a different bytecode provider
is actually considered a global settings (global to the JVM).