Package io.trino.util

Class Reflection

java.lang.Object

io.trino.util.Reflection

public final class Reflection
extends Object

Method Summary

Modifier and Type	Method	Description
static MethodHandle	constructorMethodHandle(StandardErrorCode errorCode, Class<?> clazz, Class<?>... parameterTypes)	Returns a MethodHandle corresponding to the specified constructor.
static MethodHandle	constructorMethodHandle(StandardErrorCode errorCode, Constructor<?> constructor)	Returns a MethodHandle corresponding to the specified constructor.
static MethodHandle	constructorMethodHandle(Class<?> clazz, Class<?>... parameterTypes)	Returns a MethodHandle corresponding to the specified constructor.
static Field	field(Class<?> clazz, String name)
static Method	method(Class<?> clazz, String name, Class<?>... parameterTypes)
static MethodHandle	methodHandle(StandardErrorCode errorCode, Method method)	Returns a MethodHandle corresponding to the specified method.
static MethodHandle	methodHandle(Class<?> clazz, String name, Class<?>... parameterTypes)	Returns a MethodHandle corresponding to the specified method.
static MethodHandle	methodHandle(Method method)	Returns a MethodHandle corresponding to the specified method.

Methods inherited from class java.lang.Object

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

Method Detail

field

public static Field field(Class<?> clazz,
                          String name)

method

public static Method method(Class<?> clazz,
                            String name,
                            Class<?>... parameterTypes)

methodHandle

public static MethodHandle methodHandle(Class<?> clazz,
                                        String name,
                                        Class<?>... parameterTypes)

Returns a MethodHandle corresponding to the specified method.

Warning: The way Oracle JVM implements producing MethodHandle for a method involves creating JNI global weak references. G1 processes such references serially. As a result, calling this method in a tight loop can create significant GC pressure and significantly increase application pause time.

methodHandle

public static MethodHandle methodHandle(StandardErrorCode errorCode,
                                        Method method)

Returns a MethodHandle corresponding to the specified method.

Warning: The way Oracle JVM implements producing MethodHandle for a method involves creating JNI global weak references. G1 processes such references serially. As a result, calling this method in a tight loop can create significant GC pressure and significantly increase application pause time.

methodHandle

public static MethodHandle methodHandle(Method method)

Returns a MethodHandle corresponding to the specified method.

Warning: The way Oracle JVM implements producing MethodHandle for a method involves creating JNI global weak references. G1 processes such references serially. As a result, calling this method in a tight loop can create significant GC pressure and significantly increase application pause time.

constructorMethodHandle

public static MethodHandle constructorMethodHandle(Class<?> clazz,
                                                   Class<?>... parameterTypes)

Returns a MethodHandle corresponding to the specified constructor.

Warning: The way Oracle JVM implements producing MethodHandle for a constructor involves creating JNI global weak references. G1 processes such references serially. As a result, calling this method in a tight loop can create significant GC pressure and significantly increase application pause time.

constructorMethodHandle

public static MethodHandle constructorMethodHandle(StandardErrorCode errorCode,
                                                   Class<?> clazz,
                                                   Class<?>... parameterTypes)

Returns a MethodHandle corresponding to the specified constructor.

Warning: The way Oracle JVM implements producing MethodHandle for a constructor involves creating JNI global weak references. G1 processes such references serially. As a result, calling this method in a tight loop can create significant GC pressure and significantly increase application pause time.

constructorMethodHandle

public static MethodHandle constructorMethodHandle(StandardErrorCode errorCode,
                                                   Constructor<?> constructor)

Returns a MethodHandle corresponding to the specified constructor.

Warning: The way Oracle JVM implements producing MethodHandle for a constructor involves creating JNI global weak references. G1 processes such references serially. As a result, calling this method in a tight loop can create significant GC pressure and significantly increase application pause time.