java.lang.Object
jdk.dynalink.linker.support.DefaultInternalObjectFilter
- All Implemented Interfaces:
MethodHandleTransformer
Default implementation for a
DynamicLinkerFactory.setInternalObjectsFilter(MethodHandleTransformer)
that delegates to a pair of filtering method handles. It takes a method
handle of Object(Object)
type for filtering parameter values and
another one of the same type for filtering return values. It applies them as
parameter and return value filters on method handles passed to its
transform(MethodHandle)
method, on those parameters and return values
that are declared to have type Object
. Also handles
method handles that support variable
arity calls
with a last Object[]
parameter. You can broadly think of
the parameter filter as being a wrapping method for exposing internal runtime
objects wrapped into an adapter with some public interface, and the return
value filter as being its inverse unwrapping method.-
Constructor Summary
ConstructorDescriptionDefaultInternalObjectFilter
(MethodHandle parameterFilter, MethodHandle returnFilter) Creates a new filter. -
Method Summary
-
Constructor Details
-
DefaultInternalObjectFilter
Creates a new filter.- Parameters:
parameterFilter
- the filter for method parameters. Must be of typeObject(Object)
, ornull
.returnFilter
- the filter for return values. Must be of typeObject(Object)
, ornull
.- Throws:
IllegalArgumentException
- if one or both filters are not of the expected type.
-
-
Method Details
-
transform
Description copied from interface:MethodHandleTransformer
Transforms a method handle.- Specified by:
transform
in interfaceMethodHandleTransformer
- Parameters:
target
- the method handle being transformed.- Returns:
- transformed method handle.
-