Class VarHandleUtil

java.lang.Object

eu.cloudnetservice.driver.util.VarHandleUtil

@Internal
public final class VarHandleUtil
extends Object

Small utility to make internal work with var handles easier.

Since:

4.0

Constructor Summary

Constructors

Modifier	Constructor	Description
private	VarHandleUtil()

Method Summary

Modifier and Type	Method	Description
static @NonNull VarHandle	lookup(MethodHandles.Lookup lookup, @NonNull Class<?> declaringClass, @NonNull String name, @NonNull Class<?> fieldType)	Finds a var handle for the field with the given name and type in the given class.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

VarHandleUtil

private VarHandleUtil()

Method Details

lookup

@NonNull
public static @NonNull VarHandle lookup(@NonNull
 MethodHandles.Lookup lookup,
 @NonNull
 @NonNull Class<?> declaringClass,
 @NonNull
 @NonNull String name,
 @NonNull
 @NonNull Class<?> fieldType)

Finds a var handle for the field with the given name and type in the given class.

Parameters:

lookup - the lookup for the class to find the handle in.

declaringClass - the declaring class of the field to find the handle for.

name - the name of the field to find the handle for.

fieldType - the type of the field to find the handle for.

Returns:

a var handle for the given field in the given class.

Throws:

NullPointerException - if the given lookup, declaring class, field name or field type is null.

IllegalStateException - if the target field is unknown or the given lookup instance has no access to it.