TypeBasedGuardingDynamicLinker
BeansLinker
, CompositeGuardingDynamicLinker
, CompositeTypeBasedGuardingDynamicLinker
public interface GuardingDynamicLinker
GuardingDynamicLinker
classes. They will typically set them as
prioritized linkers
in the DynamicLinkerFactory
they configure for themselves, and maybe also
set some as fallback
linkers
to handle language-specific "property not found" etc. conditions.
Consider implementing TypeBasedGuardingDynamicLinker
interface
instead of this interface for those linkers that are based on the Java class
of the objects. If you need to implement language-specific type conversions,
have your GuardingDynamicLinker
also implement the
GuardingTypeConverterFactory
interface.
Languages can export linkers to other language runtimes for
automatic discovery
using a GuardingDynamicLinkerExporter
.
Modifier and Type | Method | Description |
---|---|---|
GuardedInvocation |
getGuardedInvocation(LinkRequest linkRequest,
LinkerServices linkerServices) |
Creates a guarded invocation appropriate for a particular invocation with
the specified arguments at a call site.
|
GuardedInvocation getGuardedInvocation(LinkRequest linkRequest, LinkerServices linkerServices) throws Exception
linkRequest
- the object describing the request for linking a
particular invocationlinkerServices
- linker servicesThrowable
subclass that describes an expected exception
condition that also triggers relinking (often it is faster to rely on an
infrequent but expected ClassCastException
than on an always
evaluated instanceof
guard). While the linker must produce an
invocation with parameter types matching those in the call site
descriptor of the link request, it should not try to match the return
type expected at the call site except when it can do it with only the
conversions that lose neither precision nor magnitude, see
LinkerServices.asTypeLosslessReturn(MethodHandle, MethodType)
for
further explanation.Exception
- if the operation fails for whatever reason Submit a bug or feature
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