net.bytebuddy.dynamic.loading

Enum ClassReloadingStrategy.Engine

java.lang.Object

java.lang.Enum<ClassReloadingStrategy.Engine>

net.bytebuddy.dynamic.loading.ClassReloadingStrategy.Engine

All Implemented Interfaces:

Serializable, Comparable<ClassReloadingStrategy.Engine>

Enclosing class:

ClassReloadingStrategy

public static enum ClassReloadingStrategy.Engine
extends Enum<ClassReloadingStrategy.Engine>

An engine which performs the actual redefinition of a Class.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	ClassReloadingStrategy.Engine.ClassRedefinitionTransformer A class file transformer that applies a given ClassDefinition.

Enum Constant Summary

Enum Constants

Enum Constant and Description
REDEFINITION Redefines a class using Instrumentation.redefineClasses(java.lang.instrument.ClassDefinition...).
RETRANSFORMATION Redefines a class using Instrumentation.retransformClasses(Class[]).

Method Summary

Modifier and Type	Method and Description
protected abstract void	apply(Instrumentation instrumentation, Map<Class<?>,ClassDefinition> classDefinitions) Applies this engine for the given arguments.
boolean	isRedefinition() Returns true if this engine represents REDEFINITION.
String	toString()
protected abstract ClassReloadingStrategy.Engine	validate(Instrumentation instrumentation) Validates that this engine supports a given transformation type.
static ClassReloadingStrategy.Engine	valueOf(String name) Returns the enum constant of this type with the specified name.
static ClassReloadingStrategy.Engine[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

REDEFINITION

public static final ClassReloadingStrategy.Engine REDEFINITION

Redefines a class using Instrumentation.redefineClasses(java.lang.instrument.ClassDefinition...).

RETRANSFORMATION

public static final ClassReloadingStrategy.Engine RETRANSFORMATION

Redefines a class using Instrumentation.retransformClasses(Class[]). This requires synchronization on the ClassReloadingStrategy.instrumentation object.

Method Detail

values

public static ClassReloadingStrategy.Engine[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ClassReloadingStrategy.Engine c : ClassReloadingStrategy.Engine.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ClassReloadingStrategy.Engine valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

apply

protected abstract void apply(Instrumentation instrumentation,
                              Map<Class<?>,ClassDefinition> classDefinitions)
                       throws UnmodifiableClassException,
                              ClassNotFoundException

Applies this engine for the given arguments.

Parameters:

instrumentation - The instrumentation to be used for applying the redefinition.

classDefinitions - A mapping of the classes to be redefined to their redefinition.

Throws:

UnmodifiableClassException - If a class is not modifiable.

ClassNotFoundException - If a class was not found.

validate

protected abstract ClassReloadingStrategy.Engine validate(Instrumentation instrumentation)

Validates that this engine supports a given transformation type.

Parameters:

instrumentation - The instrumentation instance being used.

Returns:

This engine.

isRedefinition

public boolean isRedefinition()

Returns true if this engine represents REDEFINITION.

Returns:

true if this engine represents REDEFINITION.

toString

public String toString()

Overrides:

toString in class Enum<ClassReloadingStrategy.Engine>