Top Description Methods
org.glassfish.pfl.dynamic.codegen.spi

public Interface Interceptor

extends Comparable<Interceptor>
Interceptor interface used for byte code modification. A user supplies an implementation of this interface. The calls are invoked as follows:
  1. handleClass is called for the class.
  2. handleMethod is called for each method defined in the class.
  3. handleFieldReference is called for each field reference in a class in the order in which they occur. All field references in a method are made available for modification before handleMethod is called for the next method.

Method Summary

Modifier and TypeMethod and Description
public void
handleClass(ModifiableClass cls)

Invoked when the GenericClass constructor is called with classdata.

public void
handleFieldReference(ModifiableFieldReference ref)

Called when a reference to a field is encountered while visiting the body of the method for which handleMethod was most recently called.

public void
handleMethod(ModifiableMethod method)

Invoked after handleClass for each method defined in the class passed into the GenericClass constructor called with the classdata.

public String
name()

Return the name of the interceptor.

Inherited from java.lang.Comparable:
compareTo

Method Detail

handleClassback to summary
public void handleClass(ModifiableClass cls)

Invoked when the GenericClass constructor is called with classdata. All Wrapper methods that are available between _class() and _end() may be used to add to cls. This includes adding new methods, fields, constructors, and extending the class initializer. Any changes made to the ModifiableClass argument are included in the resulting GenericClass instance.

handleFieldReferenceback to summary
public void handleFieldReference(ModifiableFieldReference ref)

Called when a reference to a field is encountered while visiting the body of the method for which handleMethod was most recently called.

handleMethodback to summary
public void handleMethod(ModifiableMethod method)

Invoked after handleClass for each method defined in the class passed into the GenericClass constructor called with the classdata. The ModifiableMethod API may be used to change the method, including adding code before and/or after the existing method body using the usual Wrapper calls for use in a method body.

nameback to summary
public String name()

Return the name of the interceptor.