java.lang.Object
- net.bytebuddy.asm.ClassVisitorFactory<T>

Type Parameters:

T - The type of the mapped class visitor.
```
@Enhance
public abstract class ClassVisitorFactory<T>
extends java.lang.Object
```
A factory for wrapping a ClassVisitor in Byte Buddy's package namespace to a ClassVisitor in any other namespace. Note that this API does not allow for the passing of Attributes. which must be filtered or propagated past this translation. If the supplied visitors do not declare a method that Byte Buddy's version of ASM is aware of, an UnsupportedOperationException is thrown.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`protected static class`	`ClassVisitorFactory.AttributeTranslator`	A method to wrap an `Attribute`.
`protected static class`	`ClassVisitorFactory.ConstantArrayTranslator`	A method to translate an array of constants from one namespace to another.
`protected static class`	`ClassVisitorFactory.ConstantDynamicTranslator`	A method to translate a `ConstantDynamic` from one namespace to another.
`protected static class`	`ClassVisitorFactory.ConstantTranslator`	A method to translate a constant value from one namespace to another.
`protected static class`	`ClassVisitorFactory.CreateClassVisitorFactory<S>`	A factory for creating a wrapper for a `ClassVisitor`.
`protected static class`	`ClassVisitorFactory.FrameTranslator`	A method to translate a stack map frame array from one namespace to another.
`protected static class`	`ClassVisitorFactory.HandleTranslator`	A method to translate a `Handle` from one namespace to another.
`protected static class`	`ClassVisitorFactory.LabelArrayTranslator`	A method to translate an array of `Label`s from one namespace to another.
`protected static class`	`ClassVisitorFactory.LabelTranslator`	A method to translate a `Label` from one namespace to another.
`protected static class`	`ClassVisitorFactory.NullCheckedConstruction`	An appender that performs a `null`-checked construction.
`protected static class`	`ClassVisitorFactory.TypePathTranslator`	A method to translate a `TypePath` type from one namespace to another.

Field Summary

Fields
Modifier and Type	Field	Description
`private static java.lang.String`	`DELEGATE`	The name of the delegate field containing an equivalent visitor.
`private static java.lang.String`	`LABELS`	The name of a map with labels that have been translated previously.
`private java.lang.Class<?>`	`type`	The type of the represented class visitor wrapper.
`private static java.lang.String`	`WRAP`	The name of the method that wraps a translated visitor, including a `null` check.

Constructor Summary

Constructors
Modifier Constructor Description

protected ClassVisitorFactory(java.lang.Class<?> type)
Creates a new factory.

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`private static <T> T`	`doPrivileged(java.security.PrivilegedAction<T> action)`	A proxy for `java.security.AccessController#doPrivileged` that is activated if available.
`java.lang.Class<?>`	`getType()`	Returns the `ClassVisitor` type that this factory represents.
`static <S> ClassVisitorFactory<S>`	`of(java.lang.Class<S> classVisitor)`	Returns a class visitor factory for the supplied `ClassVisitor` type.
`static <S> ClassVisitorFactory<S>`	`of(java.lang.Class<S> classVisitor, ByteBuddy byteBuddy)`	Returns a class visitor factory for the supplied `ClassVisitor` type.
`private static DynamicType`	`toAttributeWrapper(DynamicType.Builder<?> builder, java.lang.Class<?> source, java.lang.Class<?> target, TypeDescription sourceWrapper, TypeDescription targetWrapper)`	Creates a wrapper type for an `Attribute` to pass attribues along a visitor chain.
`private static MethodCall.ArgumentLoader.Factory`	`toConvertedParameter(TypeDescription source, java.lang.Class<?> target, java.lang.String method, int offset, boolean virtual)`	Creates an argument loader for a method parameter that requires conversion.
`private static DynamicType.Builder<?>`	`toMethodVisitorBuilder(ByteBuddy byteBuddy, java.lang.Class<?> sourceVisitor, java.lang.Class<?> targetVisitor, java.lang.Class<?> sourceTypePath, java.lang.Class<?> targetTypePath, java.lang.Class<?> sourceLabel, java.lang.Class<?> targetLabel, java.lang.Class<?> sourceType, java.lang.Class<?> targetType, java.lang.Class<?> sourceHandle, java.lang.Class<?> targetHandle, java.lang.Class<?> sourceConstantDynamic, java.lang.Class<?> targetConstantDynamic)`	Creates a builder for a method visitor type.
`private static DynamicType.Builder<?>`	`toVisitorBuilder(ByteBuddy byteBuddy, java.lang.Class<?> sourceVisitor, java.lang.Class<?> targetVisitor, java.lang.Class<?> sourceTypePath, java.lang.Class<?> targetTypePath, Implementation appendix)`	Creates a builder for a visitor type.
`abstract org.objectweb.asm.ClassVisitor`	`unwrap(T classVisitor)`	Unwraps an instance of the supplied class visitor as a `ClassVisitor`.
`abstract T`	`wrap(org.objectweb.asm.ClassVisitor classVisitor)`	Wraps a `ClassVisitor` within an instance of the supplied class visitor type.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- DELEGATE
```
private static final java.lang.String DELEGATE
```
  The name of the delegate field containing an equivalent visitor.
  
  See Also:
  
  Constant Field Values
- LABELS
```
private static final java.lang.String LABELS
```
  The name of a map with labels that have been translated previously.
  
  See Also:
  
  Constant Field Values
- WRAP
```
private static final java.lang.String WRAP
```
  The name of the method that wraps a translated visitor, including a null check.
  
  See Also:
  
  Constant Field Values
- type
```
private final java.lang.Class<?> type
```
  The type of the represented class visitor wrapper.

Constructor Detail
- ClassVisitorFactory
```
protected ClassVisitorFactory(java.lang.Class<?> type)
```
  Creates a new factory.
  
  Parameters:
  
  type - The type of the represented class visitor wrapper.

Method Detail

getType
```
public java.lang.Class<?> getType()
```
Returns the ClassVisitor type that this factory represents.

Returns:

The ClassVisitor type that this factory represents.

of
```
public static <S> ClassVisitorFactory<S> of(java.lang.Class<S> classVisitor)
```
Returns a class visitor factory for the supplied ClassVisitor type.

Type Parameters:

S - The type of the class visitor to map to.

Parameters:

classVisitor - The type of the translated class visitor.

Returns:

A factory for wrapping ClassVisitors in Byte Buddy's and the supplied package namespace.

of
```
public static <S> ClassVisitorFactory<S> of(java.lang.Class<S> classVisitor,
                                            ByteBuddy byteBuddy)
```
Returns a class visitor factory for the supplied ClassVisitor type.

Type Parameters:

S - The type of the class visitor to map to.

Parameters:

classVisitor - The type of the translated ClassVisitor.

byteBuddy - The Byte Buddy instance to use.

Returns:

A factory for wrapping ClassVisitors in Byte Buddy's and the supplied package namespace.

doPrivileged
```
@Enhance
private static <T> T doPrivileged(java.security.PrivilegedAction<T> action)
```
A proxy for java.security.AccessController#doPrivileged that is activated if available.

Type Parameters:

T - The type of the action's resolved value.

Parameters:

action - The action to execute from a privileged context.

Returns:

The action's resolved value.

toVisitorBuilder

private static DynamicType.Builder<?> toVisitorBuilder(ByteBuddy byteBuddy,
                                                       java.lang.Class<?> sourceVisitor,
                                                       java.lang.Class<?> targetVisitor,
                                                       @MaybeNull
                                                       java.lang.Class<?> sourceTypePath,
                                                       @MaybeNull
                                                       java.lang.Class<?> targetTypePath,
                                                       Implementation appendix)
                                                throws java.lang.Exception

Creates a builder for a visitor type.

Parameters:: byteBuddy - The Byte Buddy instance to use.; sourceVisitor - The visitor type to map from.; targetVisitor - The visitor type to map to.; sourceTypePath - The TypePath source type.; targetTypePath - The TypePath target type.; appendix - The implementation to append to the constructor.
Returns:: The created builder.
Throws:: java.lang.Exception - If an exception occurs.

toMethodVisitorBuilder

private static DynamicType.Builder<?> toMethodVisitorBuilder(ByteBuddy byteBuddy,
                                                             java.lang.Class<?> sourceVisitor,
                                                             java.lang.Class<?> targetVisitor,
                                                             @MaybeNull
                                                             java.lang.Class<?> sourceTypePath,
                                                             @MaybeNull
                                                             java.lang.Class<?> targetTypePath,
                                                             @MaybeNull
                                                             java.lang.Class<?> sourceLabel,
                                                             @MaybeNull
                                                             java.lang.Class<?> targetLabel,
                                                             @MaybeNull
                                                             java.lang.Class<?> sourceType,
                                                             @MaybeNull
                                                             java.lang.Class<?> targetType,
                                                             @MaybeNull
                                                             java.lang.Class<?> sourceHandle,
                                                             @MaybeNull
                                                             java.lang.Class<?> targetHandle,
                                                             @MaybeNull
                                                             java.lang.Class<?> sourceConstantDynamic,
                                                             @MaybeNull
                                                             java.lang.Class<?> targetConstantDynamic)
                                                      throws java.lang.Exception

Creates a builder for a method visitor type.

Parameters:: byteBuddy - The Byte Buddy instance to use.; sourceVisitor - The visitor type to map from.; targetVisitor - The visitor type to map to.; sourceTypePath - The TypePath source type.; targetTypePath - The TypePath target type.; sourceLabel - The Label source type.; targetLabel - The Label target type.; sourceType - The Type source type.; targetType - The Type target type.; sourceHandle - The Handle source type.; targetHandle - The Handle target type.; sourceConstantDynamic - The ConstantDynamic source type.; targetConstantDynamic - The ConstantDynamic target type.
Returns:: The created builder.
Throws:: java.lang.Exception - If an exception occurs.

toConvertedParameter

private static MethodCall.ArgumentLoader.Factory toConvertedParameter(TypeDescription source,
                                                                      java.lang.Class<?> target,
                                                                      java.lang.String method,
                                                                      int offset,
                                                                      boolean virtual)

Creates an argument loader for a method parameter that requires conversion.

Parameters:: source - The source type.; target - The target type.; method - The name of the method.; offset - The parameter offset; virtual - true if the invoked method is virtual.
Returns:: An appropriate argument loader factory.

toAttributeWrapper

private static DynamicType toAttributeWrapper(DynamicType.Builder<?> builder,
                                              java.lang.Class<?> source,
                                              java.lang.Class<?> target,
                                              TypeDescription sourceWrapper,
                                              TypeDescription targetWrapper)
                                       throws java.lang.Exception

Creates a wrapper type for an Attribute to pass attribues along a visitor chain.

Parameters:: builder - The builder to use for the wrapper type.; source - The Attribute type in the original namespace.; target - The Attribute type in the targeted namespace.; sourceWrapper - The wrapper type for the Attribute type in the original namespace.; targetWrapper - The wrapper type for the Attribute type in the targeted namespace.
Returns:: The created dynamic type.
Throws:: java.lang.Exception - If the dynamic type cannot be built.

wrap
```
public abstract T wrap(org.objectweb.asm.ClassVisitor classVisitor)
```
Wraps a ClassVisitor within an instance of the supplied class visitor type.

Parameters:

classVisitor - The class visitor to wrap.

Returns:

A class visitor that wraps the supplied class visitor.

unwrap
```
public abstract org.objectweb.asm.ClassVisitor unwrap(T classVisitor)
```
Unwraps an instance of the supplied class visitor as a ClassVisitor.

Parameters:

classVisitor - The class visitor to unwrap.

Returns:

A class visitor that unwraps the supplied class visitor.

Class ClassVisitorFactory<T>

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DELEGATE

LABELS

WRAP

type

Constructor Detail

ClassVisitorFactory

Method Detail

getType

of

of

doPrivileged

toVisitorBuilder

toMethodVisitorBuilder

toConvertedParameter

toAttributeWrapper

wrap

unwrap