net.bytebuddy.implementation

Enum StubMethod

java.lang.Object

java.lang.Enum<StubMethod>

net.bytebuddy.implementation.StubMethod

All Implemented Interfaces:

Serializable, Comparable<StubMethod>, InstrumentedType.Prepareable, ByteCodeAppender, Implementation, Implementation.Composable

public enum StubMethod
extends Enum<StubMethod>
implements Implementation.Composable, ByteCodeAppender

This implementation creates a method stub which does nothing but returning the default value of the return type of the method. These default values are:

1. The value 0 for all numeric type.
2. The null character for the char type.
3. false for the boolean type.
4. Nothing for void types.
5. A null reference for any reference types. Note that this includes primitive wrapper types.

Nested Class Summary

Nested classes/interfaces inherited from interface net.bytebuddy.implementation.Implementation

Implementation.Composable, Implementation.Compound, Implementation.Context, Implementation.Simple, Implementation.SpecialMethodInvocation, Implementation.Target

Nested classes/interfaces inherited from interface net.bytebuddy.dynamic.scaffold.InstrumentedType.Prepareable

InstrumentedType.Prepareable.NoOp

Nested classes/interfaces inherited from interface net.bytebuddy.implementation.bytecode.ByteCodeAppender

ByteCodeAppender.Compound, ByteCodeAppender.Simple, ByteCodeAppender.Size

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE The singleton instance.

Method Summary

Modifier and Type	Method and Description
Implementation.Composable	andThen(Implementation.Composable implementation) Appends the supplied composable implementation to this implementation.
Implementation	andThen(Implementation implementation) Appends the supplied implementation to this implementation.
ByteCodeAppender	appender(Implementation.Target implementationTarget) Creates a byte code appender that determines the implementation of the instrumented type's methods.
ByteCodeAppender.Size	apply(org.objectweb.asm.MethodVisitor methodVisitor, Implementation.Context implementationContext, MethodDescription instrumentedMethod) Applies this byte code appender to a type creation process.
InstrumentedType	prepare(InstrumentedType instrumentedType) Prepares a given instrumented type.
static StubMethod	valueOf(String name) Returns the enum constant of this type with the specified name.
static StubMethod[]	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, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSTANCE

public static final StubMethod INSTANCE

The singleton instance.

Method Detail

values

public static StubMethod[] 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 (StubMethod c : StubMethod.values())
    System.out.println(c);

Returns:

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

valueOf

public static StubMethod 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

prepare

public InstrumentedType prepare(InstrumentedType instrumentedType)

Prepares a given instrumented type.

Specified by:

prepare in interface InstrumentedType.Prepareable

Parameters:

instrumentedType - The instrumented type in its current form.

Returns:

The prepared instrumented type.

appender

public ByteCodeAppender appender(Implementation.Target implementationTarget)

Creates a byte code appender that determines the implementation of the instrumented type's methods.

Specified by:

appender in interface Implementation

Parameters:

implementationTarget - The target of the current implementation.

Returns:

A byte code appender for implementing methods delegated to this implementation. This byte code appender is also responsible for handling methods that were added by this implementation on the call to InstrumentedType.Prepareable.prepare(InstrumentedType).

andThen

public Implementation andThen(Implementation implementation)

Appends the supplied implementation to this implementation.

Specified by:

andThen in interface Implementation.Composable

Parameters:

implementation - The subsequent implementation.

Returns:

An implementation that combines this implementation with the provided one.

andThen

public Implementation.Composable andThen(Implementation.Composable implementation)

Appends the supplied composable implementation to this implementation.

Specified by:

andThen in interface Implementation.Composable

Parameters:

implementation - The subsequent composable implementation.

Returns:

A composable implementation that combines this implementation with the provided one.

apply

public ByteCodeAppender.Size apply(org.objectweb.asm.MethodVisitor methodVisitor,
                                   Implementation.Context implementationContext,
                                   MethodDescription instrumentedMethod)

Applies this byte code appender to a type creation process.

Specified by:

apply in interface ByteCodeAppender

Parameters:

methodVisitor - The method visitor to which the byte code appender writes its code to.

implementationContext - The implementation context of the current type creation process.

instrumentedMethod - The method that is the target of the instrumentation.

Returns:

The required size for the applied byte code to run.