Interface MethodHolder

All Known Implementing Classes:

MethodHolder.Binding, MethodHolder.NonBinding

public interface MethodHolder

An interface for managing invocations of methods whose arguments may need to be augmented, by binding in certain parameters ahead of time.

Implementations may use various invocation mechanisms, including:

• direct method invocation on an held object
• calling a method pointer
• calling a MethodHandle bound to the known arguments
• calling a MethodHandle without binding to the known arguments

Implementations of this may not be thread safe, so the caller must use some external mutual exclusion unless they are using a specific implementation known to be thread-safe.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	MethodHolder.Binding
static class	MethodHolder.NonBinding	This implementation of MethodHolder is not thread safe.

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	IS_BINDING
static final String	METHOD_HOLDER_BINDING_PROPERTY

Method Summary

Modifier and Type	Method	Description
default MethodHolder	bindTo(Object arg)
default MethodHolder	bindTo(Object arg, int idx)
static Object	doInvoke(MethodHandle methodHandle, Object... args)
static MethodHolder	from(MethodHandle methodHandle)
static MethodHolder	from(MethodHandle methodHandle, boolean binding)
Object	invoke(Object... args)
default Class<?>	parameterType(int idx)
default Class<?>	returnType()

Field Details

METHOD_HOLDER_BINDING_PROPERTY

static final String METHOD_HOLDER_BINDING_PROPERTY

See Also:

• Constant Field Values

IS_BINDING

static final boolean IS_BINDING

Method Details

from

static MethodHolder from(MethodHandle methodHandle)

from

static MethodHolder from(MethodHandle methodHandle,
 boolean binding)

invoke

Object invoke(Object... args)
       throws Throwable

Throws:

Throwable

bindTo

default MethodHolder bindTo(Object arg)

bindTo

default MethodHolder bindTo(Object arg,
 int idx)

parameterType

default Class<?> parameterType(int idx)

returnType

default Class<?> returnType()

doInvoke

static Object doInvoke(MethodHandle methodHandle,
 Object... args)
                throws Throwable

Throws:

Throwable