net.bytebuddy.dynamic

Class DynamicType.Builder.AbstractBase.Adapter<U>

java.lang.Object

net.bytebuddy.dynamic.DynamicType.Builder.AbstractBase<U>

net.bytebuddy.dynamic.DynamicType.Builder.AbstractBase.UsingTypeWriter<U>

net.bytebuddy.dynamic.DynamicType.Builder.AbstractBase.Adapter<U>

Type Parameters:

U - A loaded type that the built type is guaranteed to be a subclass of.

All Implemented Interfaces:

DynamicType.Builder<U>

Direct Known Subclasses:

AbstractInliningDynamicTypeBuilder, SubclassDynamicTypeBuilder

Enclosing class:

DynamicType.Builder.AbstractBase<S>

@HashCodeAndEqualsPlugin.Enhance
public abstract static class DynamicType.Builder.AbstractBase.Adapter<U>
extends DynamicType.Builder.AbstractBase.UsingTypeWriter<U>

An adapter implementation of a dynamic type builder.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected class	DynamicType.Builder.AbstractBase.Adapter.FieldDefinitionAdapter An adapter for defining a new field.
protected class	DynamicType.Builder.AbstractBase.Adapter.FieldMatchAdapter An adapter for matching an existing field.
protected class	DynamicType.Builder.AbstractBase.Adapter.InnerTypeDefinitionForMethodAdapter An adapter for applying an inner type definition for an outer method or constructor.
protected class	DynamicType.Builder.AbstractBase.Adapter.InnerTypeDefinitionForTypeAdapter An adapter for applying an inner type definition for an outer type.
protected class	DynamicType.Builder.AbstractBase.Adapter.MethodDefinitionAdapter An adapter for defining a new method.
protected class	DynamicType.Builder.AbstractBase.Adapter.MethodMatchAdapter An adapter for matching an existing method.
protected class	DynamicType.Builder.AbstractBase.Adapter.OptionalMethodMatchAdapter An adapter for optionally matching methods defined by declared interfaces.
protected class	DynamicType.Builder.AbstractBase.Adapter.RecordComponentDefinitionAdapter An adapter for defining a record component.
protected class	DynamicType.Builder.AbstractBase.Adapter.RecordComponentMatchAdapter An adapter for matching record components.
protected class	DynamicType.Builder.AbstractBase.Adapter.TypeVariableDefinitionAdapter An adapter for defining a new type variable for the instrumented type.

Nested classes/interfaces inherited from class net.bytebuddy.dynamic.DynamicType.Builder.AbstractBase

DynamicType.Builder.AbstractBase.Adapter<U>, DynamicType.Builder.AbstractBase.Delegator<U>, DynamicType.Builder.AbstractBase.UsingTypeWriter<U>

Nested classes/interfaces inherited from interface net.bytebuddy.dynamic.DynamicType.Builder

DynamicType.Builder.AbstractBase<S>, DynamicType.Builder.FieldDefinition<S>, DynamicType.Builder.InnerTypeDefinition<S>, DynamicType.Builder.MethodDefinition<S>, DynamicType.Builder.RecordComponentDefinition<S>, DynamicType.Builder.TypeVariableDefinition<S>

Field Summary

Fields

Modifier and Type	Field and Description
protected AnnotationRetention	annotationRetention The annotation retention to apply.
protected AnnotationValueFilter.Factory	annotationValueFilterFactory The annotation value filter factory to apply.
protected AsmVisitorWrapper	asmVisitorWrapper The ASM visitor wrapper to apply onto the class writer.
protected AuxiliaryType.NamingStrategy	auxiliaryTypeNamingStrategy The naming strategy for auxiliary types to apply.
protected List<? extends DynamicType>	auxiliaryTypes A list of explicitly defined auxiliary types.
protected ClassFileVersion	classFileVersion The class file version to define auxiliary types in.
protected AsmClassReader.Factory	classReaderFactory The class reader factory to use.
protected AsmClassWriter.Factory	classWriterFactory The class writer factory to use.
protected FieldRegistry	fieldRegistry The current field registry.
protected LatentMatcher<? super MethodDescription>	ignoredMethods A matcher for identifying methods that should be excluded from instrumentation.
protected Implementation.Context.Factory	implementationContextFactory The implementation context factory to apply.
protected InstrumentedType.WithFlexibleName	instrumentedType The instrumented type to be created.
protected MethodGraph.Compiler	methodGraphCompiler The method graph compiler to use.
protected MethodRegistry	methodRegistry The current method registry.
protected RecordComponentRegistry	recordComponentRegistry The current record component registry.
protected TypeAttributeAppender	typeAttributeAppender The type attribute appender to apply onto the instrumented type.
protected TypeValidation	typeValidation Determines if a type should be explicitly validated.
protected VisibilityBridgeStrategy	visibilityBridgeStrategy The visibility bridge strategy to apply.

Constructor Summary

Constructors

Modifier

Constructor and Description

protected

Adapter(InstrumentedType.WithFlexibleName instrumentedType, FieldRegistry fieldRegistry, MethodRegistry methodRegistry, RecordComponentRegistry recordComponentRegistry, TypeAttributeAppender typeAttributeAppender, AsmVisitorWrapper asmVisitorWrapper, ClassFileVersion classFileVersion, AuxiliaryType.NamingStrategy auxiliaryTypeNamingStrategy, AnnotationValueFilter.Factory annotationValueFilterFactory, AnnotationRetention annotationRetention, Implementation.Context.Factory implementationContextFactory, MethodGraph.Compiler methodGraphCompiler, TypeValidation typeValidation, VisibilityBridgeStrategy visibilityBridgeStrategy, AsmClassReader.Factory classReaderFactory, AsmClassWriter.Factory classWriterFactory, LatentMatcher<? super MethodDescription> ignoredMethods, List<? extends DynamicType> auxiliaryTypes) Creates a new default type writer for creating a new type that is not based on an existing class file.

Method Summary

Modifier and Type	Method and Description
DynamicType.Builder<U>	annotateType(Collection<? extends AnnotationDescription> annotations) Annotates the instrumented type with the supplied annotations.
DynamicType.Builder<U>	attribute(TypeAttributeAppender typeAttributeAppender) Applies the given type attribute appender onto the instrumented type.
DynamicType.Builder<U>	declaredTypes(Collection<? extends TypeDescription> types) Defines this type as an the outer type of the supplied types.
DynamicType.Builder.MethodDefinition.ParameterDefinition.Initial<U>	defineConstructor(int modifiers) Defines the specified constructor to be declared by the instrumented type.
DynamicType.Builder.FieldDefinition.Optional.Valuable<U>	defineField(String name, TypeDefinition type, int modifiers) Defines the specified field as a field of the built dynamic type.
DynamicType.Builder.MethodDefinition.ParameterDefinition.Initial<U>	defineMethod(String name, TypeDefinition returnType, int modifiers) Defines the specified method to be declared by the instrumented type.
DynamicType.Builder.RecordComponentDefinition.Optional<U>	defineRecordComponent(String name, TypeDefinition type) Defines a new record component.
DynamicType.Builder.FieldDefinition.Valuable<U>	field(LatentMatcher<? super FieldDescription> matcher) Matches a field that is already declared by the instrumented type.
DynamicType.Builder<U>	ignoreAlso(LatentMatcher<? super MethodDescription> ignoredMethods) Specifies to exclude any method that is matched by the supplied matcher from instrumentation.
DynamicType.Builder.MethodDefinition.ImplementationDefinition.Optional<U>	implement(Collection<? extends TypeDefinition> interfaceTypes) Implements the supplied interfaces for the instrumented type.
DynamicType.Builder<U>	initializer(ByteCodeAppender byteCodeAppender) Executes the supplied byte code appender within the beginning of the instrumented type's type initializer.
DynamicType.Builder<U>	initializer(LoadedTypeInitializer loadedTypeInitializer) Executes the supplied loaded type initializer when loading the created instrumented type.
DynamicType.Builder.InnerTypeDefinition<U>	innerTypeOf(MethodDescription.InDefinedShape methodDescription) Defines this type as an inner type that was declared within the supplied method or constructor.
DynamicType.Builder.InnerTypeDefinition.ForType<U>	innerTypeOf(TypeDescription type) Defines this type as an inner type of the supplied type.
DynamicType.Builder.MethodDefinition.ImplementationDefinition<U>	invokable(LatentMatcher<? super MethodDescription> matcher) Matches a method or constructor that is already declared or inherited by the instrumented type.
protected abstract DynamicType.Builder<U>	materialize(InstrumentedType.WithFlexibleName instrumentedType, FieldRegistry fieldRegistry, MethodRegistry methodRegistry, RecordComponentRegistry recordComponentRegistry, TypeAttributeAppender typeAttributeAppender, AsmVisitorWrapper asmVisitorWrapper, ClassFileVersion classFileVersion, AuxiliaryType.NamingStrategy auxiliaryTypeNamingStrategy, AnnotationValueFilter.Factory annotationValueFilterFactory, AnnotationRetention annotationRetention, Implementation.Context.Factory implementationContextFactory, MethodGraph.Compiler methodGraphCompiler, TypeValidation typeValidation, VisibilityBridgeStrategy visibilityBridgeStrategy, AsmClassReader.Factory classReaderFactory, AsmClassWriter.Factory classWriterFactory, LatentMatcher<? super MethodDescription> ignoredMethods, List<? extends DynamicType> auxiliaryTypes) Materializes the supplied state of a dynamic type builder.
DynamicType.Builder<U>	merge(Collection<? extends ModifierContributor.ForType> modifierContributors) Merges the supplied modifier contributors with the modifiers of the instrumented type and defines them as the instrumented type's new modifiers.
DynamicType.Builder<U>	modifiers(int modifiers) Defines the supplied modifiers as the modifiers of the instrumented type.
DynamicType.Builder<U>	name(String name) Names the dynamic type by the supplied name.
DynamicType.Builder<U>	nestHost(TypeDescription type) Defines this type as a nest member of the supplied type as a nest host.
DynamicType.Builder<U>	nestMembers(Collection<? extends TypeDescription> types) Defines this type as a nest host for the supplied types.
DynamicType.Builder<U>	permittedSubclass(Collection<? extends TypeDescription> types) Defines this type to allow the supplied permitted subclasses additionally to any prior permitted subclasses.
DynamicType.Builder.RecordComponentDefinition<U>	recordComponent(LatentMatcher<? super RecordComponentDescription> matcher) Matches a record component that is already declared by the instrumented type.
DynamicType.Builder<U>	require(Collection<DynamicType> auxiliaryTypes) Explicitly requires other dynamic types for the creation of this type.
DynamicType.Builder<U>	suffix(String suffix) Adds a suffix to the current type name without changing the type's package.
DynamicType.Builder<U>	topLevelType() Defines this type as a top-level type that is not declared by another type or enclosed by another member.
TypeDescription	toTypeDescription() Returns a TypeDescription for the currently built type.
DynamicType.Builder<U>	transform(ElementMatcher<? super TypeDescription.Generic> matcher, Transformer<TypeVariableToken> transformer) Transforms any type variable that is defined by this type if it is matched by the supplied matcher.
DynamicType.Builder.TypeVariableDefinition<U>	typeVariable(String symbol, Collection<? extends TypeDefinition> bounds) Defines the supplied type variable with the given bound as a type variable of the instrumented type.
DynamicType.Builder<U>	unsealed() Unseales this type.
DynamicType.Builder<U>	visit(AsmVisitorWrapper asmVisitorWrapper) Applies the supplied AsmVisitorWrapper onto the ClassVisitor during building a dynamic type.

Methods inherited from class net.bytebuddy.dynamic.DynamicType.Builder.AbstractBase.UsingTypeWriter

make, make, toTypeWriter, toTypeWriter, wrap, wrap

Methods inherited from class net.bytebuddy.dynamic.DynamicType.Builder.AbstractBase

annotateType, annotateType, annotateType, constructor, declaredTypes, declaredTypes, declaredTypes, define, define, define, define, define, define, defineConstructor, defineConstructor, defineField, defineField, defineField, defineField, defineField, defineMethod, defineMethod, defineMethod, defineMethod, defineMethod, defineProperty, defineProperty, defineProperty, defineProperty, defineRecordComponent, field, ignoreAlso, implement, implement, implement, innerTypeOf, innerTypeOf, innerTypeOf, invokable, make, make, merge, method, modifiers, modifiers, nestHost, nestMembers, nestMembers, nestMembers, noNestMate, permittedSubclass, permittedSubclass, permittedSubclass, recordComponent, require, require, require, serialVersionUid, typeVariable, typeVariable, typeVariable, typeVariable, withHashCodeEquals, withToString, wrap, wrap

Methods inherited from class java.lang.Object

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

Field Detail

instrumentedType

protected final InstrumentedType.WithFlexibleName instrumentedType

The instrumented type to be created.

fieldRegistry

protected final FieldRegistry fieldRegistry

The current field registry.

methodRegistry

protected final MethodRegistry methodRegistry

The current method registry.

recordComponentRegistry

protected final RecordComponentRegistry recordComponentRegistry

The current record component registry.

typeAttributeAppender

protected final TypeAttributeAppender typeAttributeAppender

The type attribute appender to apply onto the instrumented type.

asmVisitorWrapper

protected final AsmVisitorWrapper asmVisitorWrapper

The ASM visitor wrapper to apply onto the class writer.

classFileVersion

protected final ClassFileVersion classFileVersion

The class file version to define auxiliary types in.

auxiliaryTypeNamingStrategy

protected final AuxiliaryType.NamingStrategy auxiliaryTypeNamingStrategy

The naming strategy for auxiliary types to apply.

annotationValueFilterFactory

protected final AnnotationValueFilter.Factory annotationValueFilterFactory

The annotation value filter factory to apply.

annotationRetention

protected final AnnotationRetention annotationRetention

The annotation retention to apply.

implementationContextFactory

protected final Implementation.Context.Factory implementationContextFactory

The implementation context factory to apply.

methodGraphCompiler

protected final MethodGraph.Compiler methodGraphCompiler

The method graph compiler to use.

typeValidation

protected final TypeValidation typeValidation

Determines if a type should be explicitly validated.

visibilityBridgeStrategy

protected final VisibilityBridgeStrategy visibilityBridgeStrategy

The visibility bridge strategy to apply.

classReaderFactory

protected final AsmClassReader.Factory classReaderFactory

The class reader factory to use.

classWriterFactory

protected final AsmClassWriter.Factory classWriterFactory

The class writer factory to use.

ignoredMethods

protected final LatentMatcher<? super MethodDescription> ignoredMethods

A matcher for identifying methods that should be excluded from instrumentation.

auxiliaryTypes

protected final List<? extends DynamicType> auxiliaryTypes

A list of explicitly defined auxiliary types.

Constructor Detail

Adapter

protected Adapter(InstrumentedType.WithFlexibleName instrumentedType,
                  FieldRegistry fieldRegistry,
                  MethodRegistry methodRegistry,
                  RecordComponentRegistry recordComponentRegistry,
                  TypeAttributeAppender typeAttributeAppender,
                  AsmVisitorWrapper asmVisitorWrapper,
                  ClassFileVersion classFileVersion,
                  AuxiliaryType.NamingStrategy auxiliaryTypeNamingStrategy,
                  AnnotationValueFilter.Factory annotationValueFilterFactory,
                  AnnotationRetention annotationRetention,
                  Implementation.Context.Factory implementationContextFactory,
                  MethodGraph.Compiler methodGraphCompiler,
                  TypeValidation typeValidation,
                  VisibilityBridgeStrategy visibilityBridgeStrategy,
                  AsmClassReader.Factory classReaderFactory,
                  AsmClassWriter.Factory classWriterFactory,
                  LatentMatcher<? super MethodDescription> ignoredMethods,
                  List<? extends DynamicType> auxiliaryTypes)

Creates a new default type writer for creating a new type that is not based on an existing class file.

Parameters:

instrumentedType - The instrumented type to be created.

fieldRegistry - The current field registry.

methodRegistry - The current method registry.

recordComponentRegistry - The record component pool to use.

typeAttributeAppender - The type attribute appender to apply onto the instrumented type.

asmVisitorWrapper - The ASM visitor wrapper to apply onto the class writer.

classFileVersion - The class file version to define auxiliary types in.

auxiliaryTypeNamingStrategy - The naming strategy for auxiliary types to apply.

annotationValueFilterFactory - The annotation value filter factory to apply.

annotationRetention - The annotation retention to apply.

implementationContextFactory - The implementation context factory to apply.

methodGraphCompiler - The method graph compiler to use.

typeValidation - Determines if a type should be explicitly validated.

visibilityBridgeStrategy - The visibility bridge strategy to apply.

classReaderFactory - The class reader factory to use.

classWriterFactory - The class writer factory to use.

ignoredMethods - A matcher for identifying methods that should be excluded from instrumentation.

auxiliaryTypes - A list of explicitly defined auxiliary types.

Method Detail

defineField

public DynamicType.Builder.FieldDefinition.Optional.Valuable<U> defineField(String name,
                                                                            TypeDefinition type,
                                                                            int modifiers)

Defines the specified field as a field of the built dynamic type.

Parameters:

name - The name of the field.

type - The type of the field. Can also be TargetType if the field type should be equal to the currently instrumented type.

modifiers - The modifiers of the field.

Returns:

A new builder that is equal to this builder but with the given field defined for the instrumented type. Furthermore, it is possible to optionally define a value, annotations or custom attributes for the field.

field

public DynamicType.Builder.FieldDefinition.Valuable<U> field(LatentMatcher<? super FieldDescription> matcher)

Matches a field that is already declared by the instrumented type. This gives opportunity to change that field's default value, annotations or custom attributes. Using a latent matcher gives opportunity to resolve an ElementMatcher based on the instrumented type before applying the matcher.

When a type is redefined or rebased, any annotations that the field declared previously is preserved as it is if Byte Buddy is configured to retain such annotations by AnnotationRetention.ENABLED. If any existing annotations should be altered, annotation retention must be disabled.

If a field is already matched by a previously specified field matcher, the new field definition gets precedence over the previous definition, i.e. the previous field definition is no longer applied.

Parameters:

matcher - The matcher that determines what declared fields are affected by the subsequent specification.

Returns:

A builder that allows for changing a field's definition.

defineMethod

public DynamicType.Builder.MethodDefinition.ParameterDefinition.Initial<U> defineMethod(String name,
                                                                                        TypeDefinition returnType,
                                                                                        int modifiers)

Defines the specified method to be declared by the instrumented type. Method parameters or parameter types, declared exceptions and type variables can be defined in subsequent steps.

Parameters:

name - The name of the method.

returnType - The method's return type. Can also be TargetType if the return type should be equal to the currently instrumented type.

modifiers - The method's modifiers.

Returns:

A builder that allows for further defining the method, either by adding more properties or by defining an implementation.

defineConstructor

public DynamicType.Builder.MethodDefinition.ParameterDefinition.Initial<U> defineConstructor(int modifiers)

Defines the specified constructor to be declared by the instrumented type. Method parameters or parameter types, declared exceptions and type variables can be defined in subsequent steps.

Parameters:

modifiers - The constructor's modifiers.

Returns:

A builder that allows for further defining the constructor, either by adding more properties or by defining an implementation.

invokable

public DynamicType.Builder.MethodDefinition.ImplementationDefinition<U> invokable(LatentMatcher<? super MethodDescription> matcher)

Matches a method or constructor that is already declared or inherited by the instrumented type. This gives opportunity to change or to override that method's or constructor's implementation, default value, annotations or custom attributes. It is also possible to make a method abstract. Using a latent matcher gives opportunity to resolve an ElementMatcher based on the instrumented type before applying the matcher.

When a type is redefined or rebased, any annotations that the method or constructor declared previously is preserved as it is if Byte Buddy is configured to retain such annotations by AnnotationRetention.ENABLED. If any existing annotations should be altered, annotation retention must be disabled.

If a method or constructor is already matched by a previously specified matcher, the new definition gets precedence over the previous definition, i.e. the previous definition is no longer applied.

Note that the specified definition does never apply for methods that are explicitly ignored.

Important: It is possible to instrument the dynamic type's initializer. Depending on the used TypeResolutionStrategy, the type initializer might be run before Byte Buddy could apply any LoadedTypeInitializers which are responsible for preparing the instrumented type prior to the initializer's execution. For preparing the type prior to executing the initializer, an TypeResolutionStrategy.Active resolver must be chosen.

Parameters:

matcher - The matcher that determines what declared methods or constructors are affected by the subsequent specification.

Returns:

A builder that allows for changing a method's or constructor's definition.

implement

public DynamicType.Builder.MethodDefinition.ImplementationDefinition.Optional<U> implement(Collection<? extends TypeDefinition> interfaceTypes)

Implements the supplied interfaces for the instrumented type. Optionally, it is possible to define the methods that are defined by the interfaces or the interfaces' super interfaces. This excludes methods that are explicitly ignored.

Note: This methods implements the supplied types as is, i.e. any TypeDescription values are implemented as raw types if they declare type variables or an owner type.

Parameters:

interfaceTypes - The interface types to implement.

Returns:

A new builder that is equal to this builder but with the interfaces implemented by the instrumented type.

ignoreAlso

public DynamicType.Builder<U> ignoreAlso(LatentMatcher<? super MethodDescription> ignoredMethods)

Specifies to exclude any method that is matched by the supplied matcher from instrumentation. Previously supplied matchers remain valid after supplying a new matcher, i.e. any method that is matched by a previously supplied matcher is always ignored. Using a latent matcher gives opportunity to resolve an ElementMatcher based on the instrumented type before applying the matcher.

When ignoring a type, previously registered matchers are applied before this matcher. If a previous matcher indicates that a type is to be ignored, this matcher is no longer executed.

Parameters:

ignoredMethods - The matcher for determining what methods to exclude from instrumentation.

Returns:

A new builder that is equal to this builder but that is excluding any method that is matched by the supplied matcher from instrumentation.

defineRecordComponent

public DynamicType.Builder.RecordComponentDefinition.Optional<U> defineRecordComponent(String name,
                                                                                       TypeDefinition type)

Defines a new record component. Note that this does not add or change implementations for a field, an accessor to this field or a constructor unless ByteBuddy.makeRecord() is used.

Parameters:

name - The record component's name.

type - The record component's type.

Returns:

A new builder that is equal to this builder but also defines the supplied record component.

recordComponent

public DynamicType.Builder.RecordComponentDefinition<U> recordComponent(LatentMatcher<? super RecordComponentDescription> matcher)

Matches a record component that is already declared by the instrumented type. This gives opportunity to change that record component's annotations or custom attributes.

When a type is redefined or rebased, any annotations that the field declared previously is preserved as it is if Byte Buddy is configured to retain such annotations by AnnotationRetention.ENABLED. If any existing annotations should be altered, annotation retention must be disabled.

If a record component is already matched by a previously specified record component matcher, the new record component definition gets precedence over the previous definition, i.e. the previous record component definition is no longer applied.

Parameters:

matcher - The matcher that determines what declared record components are affected by the subsequent specification.

Returns:

A builder that allows for changing a record component's definition.

initializer

public DynamicType.Builder<U> initializer(ByteCodeAppender byteCodeAppender)

Executes the supplied byte code appender within the beginning of the instrumented type's type initializer. The supplied byte code appender must not return from the method. If several byte code appenders are supplied, they are executed within their application order.

This method should only be used for preparing an instrumented type with a specific configuration. Normally, a byte code appender is applied via Byte Buddy's standard API by invoking DynamicType.Builder.invokable(ElementMatcher) using the ElementMatchers.isTypeInitializer() matcher.

Parameters:

byteCodeAppender - The byte code appender to execute within the instrumented type's type initializer.

Returns:

A new builder that is equal to this builder but with the supplied byte code appender being executed within the instrumented type's type initializer.

initializer

public DynamicType.Builder<U> initializer(LoadedTypeInitializer loadedTypeInitializer)

Executes the supplied loaded type initializer when loading the created instrumented type. If several loaded type initializers are supplied, each loaded type initializer is executed in its registration order.

Parameters:

loadedTypeInitializer - The loaded type initializer to execute upon loading the instrumented type.

Returns:

A new builder that is equal to this builder but with the supplied loaded type initializer executed upon loading the instrumented type.

name

public DynamicType.Builder<U> name(String name)

Names the dynamic type by the supplied name. The name needs to be fully qualified and in the binary format (packages separated by dots: foo.Bar). A type's package determines what other types are visible to the instrumented type and what methods can be overridden or be represented in method signatures or as field types.

Parameters:

name - The fully qualified name of the generated class in a binary format.

Returns:

A new builder that is equal to this builder but with the instrumented type named by the supplied name.

suffix

public DynamicType.Builder<U> suffix(String suffix)

Adds a suffix to the current type name without changing the type's package.

Parameters:

suffix - The suffix to append to the current type name.

Returns:

A new builder that is equal to this builder but with the instrumented type named suffixed by the supplied suffix.

modifiers

public DynamicType.Builder<U> modifiers(int modifiers)

Defines the supplied modifiers as the modifiers of the instrumented type.

Parameters:

modifiers - The modifiers of the instrumented type.

Returns:

A new builder that is equal to this builder but with the supplied modifiers applied onto the instrumented type.

merge

public DynamicType.Builder<U> merge(Collection<? extends ModifierContributor.ForType> modifierContributors)

Merges the supplied modifier contributors with the modifiers of the instrumented type and defines them as the instrumented type's new modifiers.

Parameters:

modifierContributors - The modifiers of the instrumented type.

Returns:

A new builder that is equal to this builder but with the supplied modifiers merged into the instrumented type's modifiers.

topLevelType

public DynamicType.Builder<U> topLevelType()

Defines this type as a top-level type that is not declared by another type or enclosed by another member.

Important: Changing the declaration hierarchy of a type has no influence on the nest mate hierarchy.

Warning: By changing this type's declaration, any other type will not change its declaration of enclosing members or declared types about any nesting of a declaration. It is the responsibility of the user of this API to keep such declarations consistent among the definitions of connected types.

Returns:

A new builder that is equal to this builder but without any declaration of a declared or enclosed type.

innerTypeOf

public DynamicType.Builder.InnerTypeDefinition.ForType<U> innerTypeOf(TypeDescription type)

Defines this type as an inner type of the supplied type. Without any additional configuration, the type declaration is defined as a local type.

Important: Changing the declaration hierarchy of a type has no influence on the nest mate hierarchy.

Warning: By changing this type's declaration, any other type will not change its declaration of enclosing members or declared types about any nesting of a declaration. It is the responsibility of the user of this API to keep such declarations consistent among the definitions of connected types.

Parameters:

type - The type to declare as the built type's outer type.

Returns:

A new builder that is equal to this builder with the supplied type as the built type's outer type.

innerTypeOf

public DynamicType.Builder.InnerTypeDefinition<U> innerTypeOf(MethodDescription.InDefinedShape methodDescription)

Defines this type as an inner type that was declared within the supplied method or constructor. Without any additional configuration, the type declaration is defined as a local type.

Important: Changing the declaration hierarchy of a type has no influence on the nest mate hierarchy.

Warning: By changing this type's declaration, any other type will not change its declaration of enclosing members or declared types about any nesting of a declaration. It is the responsibility of the user of this API to keep such declarations consistent among the definitions of connected types.

Parameters:

methodDescription - The method or constructor to declare as the built type's declaring method.

Returns:

A new builder that is equal to this builder with the supplied method as the built type's declaring method or constructor.

declaredTypes

public DynamicType.Builder<U> declaredTypes(Collection<? extends TypeDescription> types)

Defines this type as an the outer type of the supplied types. Using this method, it is possible to add inner type declarations for anonymous or local types which are not normally exposed by type descriptions. Doing so, it is however possible to indicate to Byte Buddy that the required attributes for such an inner type declaration should be added to a class file.

Important: Changing the declaration hierarchy of a type has no influence on the nest mate hierarchy.

Warning: By changing this type's declaration, any other type will not change its declaration of enclosing members or declared types about any nesting of a declaration. It is the responsibility of the user of this API to keep such declarations consistent among the definitions of connected types.

Parameters:

types - The types being declared.

Returns:

A new builder that is equal to this builder with the supplied types being declared by the built type.

nestHost

public DynamicType.Builder<U> nestHost(TypeDescription type)

Defines this type as a nest member of the supplied type as a nest host.

Important: Changing the nest mate hierarchy of a type has no influence on the declaration hierarchy.

Warning: Changing nest mate hierarchies always requires changing a member and its host or a host and all its members. Otherwise, the runtime will not accept further nest mates. It is the responsibility of the user of this API to keep such declarations consistent among the definitions of connected types.

Parameters:

type - The nest host.

Returns:

A new builder that is equal to this builder but where the built type is a nest member of the supplied host.

nestMembers

public DynamicType.Builder<U> nestMembers(Collection<? extends TypeDescription> types)

Defines this type as a nest host for the supplied types.

Important: Changing the nest mate hierarchy of a type has no influence on the declaration hierarchy.

Warning: Changing nest mate hierarchies always requires changing a member and its host or a host and all its members. Otherwise, the runtime will not accept further nest mates. It is the responsibility of the user of this API to keep such declarations consistent among the definitions of connected types.

Parameters:

types - The nest members.

Returns:

A new builder that is equal to this builder but where the built type is a nest host of the supplied types.

permittedSubclass

public DynamicType.Builder<U> permittedSubclass(Collection<? extends TypeDescription> types)

Defines this type to allow the supplied permitted subclasses additionally to any prior permitted subclasses. If this type was not previously sealed, only the supplied subclasses are permitted.

Parameters:

types - The permitted subclasses.

Returns:

A new builder that is equal to this builder but where the built type permits the supplied subclasses.

unsealed

public DynamicType.Builder<U> unsealed()

Unseales this type.

Returns:

A new builder that is equal to this builder but where the built type does not restrain its permitted subclasses.

typeVariable

public DynamicType.Builder.TypeVariableDefinition<U> typeVariable(String symbol,
                                                                  Collection<? extends TypeDefinition> bounds)

Defines the supplied type variable with the given bound as a type variable of the instrumented type.

Parameters:

symbol - The type variable's symbol.

bounds - The type variable's upper bounds. Can also be TargetType if the bound type should be equal to the currently instrumented type.

Returns:

A new builder that is equal to this builder but with the given type variable defined for the instrumented type.

transform

public DynamicType.Builder<U> transform(ElementMatcher<? super TypeDescription.Generic> matcher,
                                        Transformer<TypeVariableToken> transformer)

Transforms any type variable that is defined by this type if it is matched by the supplied matcher.

Parameters:

matcher - The matcher to decide what type variables to transform.

transformer - The transformer to apply to the matched type variables.

Returns:

A new builder that is equal to this builder but with the supplied transformer applied to all type variables.

attribute

public DynamicType.Builder<U> attribute(TypeAttributeAppender typeAttributeAppender)

Applies the given type attribute appender onto the instrumented type. Using a type attribute appender, it is possible to append any type of meta data to a type, not only Java Annotations.

Parameters:

typeAttributeAppender - The type attribute appender to apply.

Returns:

A new builder that is equal to this builder but with the supplied type attribute appender applied to the instrumented type.

annotateType

public DynamicType.Builder<U> annotateType(Collection<? extends AnnotationDescription> annotations)

Annotates the instrumented type with the supplied annotations.

Parameters:

annotations - The annotations to add to the instrumented type.

Returns:

A new builder that is equal to this builder but with the annotations added to the instrumented type.

visit

public DynamicType.Builder<U> visit(AsmVisitorWrapper asmVisitorWrapper)

Applies the supplied AsmVisitorWrapper onto the ClassVisitor during building a dynamic type. Using an ASM visitor, it is possible to manipulate byte code directly. Byte Buddy does not validate directly created byte code and it remains the responsibility of the visitor's implementor to generate legal byte code. If several ASM visitor wrappers are registered, they are applied on top of another in their registration order.

Parameters:

asmVisitorWrapper - The ASM visitor wrapper to apply during

Returns:

A new builder that is equal to this builder and applies the ASM visitor wrapper.

require

public DynamicType.Builder<U> require(Collection<DynamicType> auxiliaryTypes)

Explicitly requires other dynamic types for the creation of this type.

Parameters:

auxiliaryTypes - The required dynamic types.

Returns:

A new builder that is equal to this builder but which explicitly requires the supplied types.

toTypeDescription

public TypeDescription toTypeDescription()

Returns a TypeDescription for the currently built type.

Returns:

A TypeDescription for the currently built type.

materialize

protected abstract DynamicType.Builder<U> materialize(InstrumentedType.WithFlexibleName instrumentedType,
                                                      FieldRegistry fieldRegistry,
                                                      MethodRegistry methodRegistry,
                                                      RecordComponentRegistry recordComponentRegistry,
                                                      TypeAttributeAppender typeAttributeAppender,
                                                      AsmVisitorWrapper asmVisitorWrapper,
                                                      ClassFileVersion classFileVersion,
                                                      AuxiliaryType.NamingStrategy auxiliaryTypeNamingStrategy,
                                                      AnnotationValueFilter.Factory annotationValueFilterFactory,
                                                      AnnotationRetention annotationRetention,
                                                      Implementation.Context.Factory implementationContextFactory,
                                                      MethodGraph.Compiler methodGraphCompiler,
                                                      TypeValidation typeValidation,
                                                      VisibilityBridgeStrategy visibilityBridgeStrategy,
                                                      AsmClassReader.Factory classReaderFactory,
                                                      AsmClassWriter.Factory classWriterFactory,
                                                      LatentMatcher<? super MethodDescription> ignoredMethods,
                                                      List<? extends DynamicType> auxiliaryTypes)

Materializes the supplied state of a dynamic type builder.

Parameters:

instrumentedType - The instrumented type.

fieldRegistry - The current field registry.

methodRegistry - The current method registry.

recordComponentRegistry - The record component pool to use.

typeAttributeAppender - The type attribute appender to apply onto the instrumented type.

asmVisitorWrapper - The ASM visitor wrapper to apply onto the class writer.

classFileVersion - The class file version to define auxiliary types in.

auxiliaryTypeNamingStrategy - The naming strategy for auxiliary types to apply.

annotationValueFilterFactory - The annotation value filter factory to apply.

annotationRetention - The annotation retention to apply.

implementationContextFactory - The implementation context factory to apply.

methodGraphCompiler - The method graph compiler to use.

typeValidation - The type validation state.

visibilityBridgeStrategy - The visibility bridge strategy to apply.

classReaderFactory - The class reader factory to use.

classWriterFactory - The class writer factory to use.

ignoredMethods - A matcher for identifying methods that should be excluded from instrumentation.

auxiliaryTypes - A list of explicitly required auxiliary types.

Returns:

A type builder that represents the supplied arguments.