Class InterfaceMaker

java.lang.Object

org.springframework.cglib.core.AbstractClassGenerator

org.springframework.cglib.proxy.InterfaceMaker

All Implemented Interfaces:

ClassGenerator

public class InterfaceMaker
extends AbstractClassGenerator

Generates new interfaces at runtime. By passing a generated interface to the Enhancer's list of interfaces to implement, you can make your enhanced classes handle an arbitrary set of method signatures.

Author:

Chris Nokleberg

Nested Class Summary

Nested classes/interfaces inherited from class AbstractClassGenerator

AbstractClassGenerator.ClassLoaderData, AbstractClassGenerator.Source

Constructor Summary

Constructors

Constructor	Description
InterfaceMaker()	Create a new InterfaceMaker.

Method Summary

Modifier and Type	Method	Description
void	add(Class clazz)	Add all the public methods in the specified class.
void	add(Method method)	Add a method signature to the interface.
void	add(Signature sig, Type[] exceptions)	Add a method signature to the interface.
Class	create()	Create an interface using the current set of method signatures.
protected Object	firstInstance(Class type)
void	generateClass(ClassVisitor v)
protected ClassLoader	getDefaultClassLoader()
protected Object	nextInstance(Object instance)

Methods inherited from class AbstractClassGenerator

create, generate, getAttemptLoad, getClassLoader, getClassName, getCurrent, getNamingPolicy, getProtectionDomain, getStrategy, getUseCache, setAttemptLoad, setClassLoader, setContextClass, setNamePrefix, setNamingPolicy, setStrategy, setUseCache, unwrapCachedValue, wrapCachedClass

Methods inherited from class Object

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

Constructor Details

InterfaceMaker

public InterfaceMaker()

Create a new InterfaceMaker. A new InterfaceMaker object should be used for each generated interface, and should not be shared across threads.

Method Details

add

public void add(Signature sig,
 Type[] exceptions)

Add a method signature to the interface.

Parameters:

sig - the method signature to add to the interface

exceptions - an array of exception types to declare for the method

add

public void add(Method method)

Add a method signature to the interface. The method modifiers are ignored, since interface methods are by definition abstract and public.

Parameters:

method - the method to add to the interface

add

public void add(Class clazz)

Add all the public methods in the specified class. Methods from superclasses are included, except for methods declared in the base Object class (for example, getClass, equals, hashCode).

Parameters:

clazz - the class containing the methods to add to the interface

create

public Class create()

Create an interface using the current set of method signatures.

getDefaultClassLoader

protected ClassLoader getDefaultClassLoader()

Specified by:

getDefaultClassLoader in class AbstractClassGenerator

firstInstance

protected Object firstInstance(Class type)

Specified by:

firstInstance in class AbstractClassGenerator

nextInstance

protected Object nextInstance(Object instance)

Specified by:

nextInstance in class AbstractClassGenerator

generateClass

public void generateClass(ClassVisitor v)
                   throws Exception

Throws:

Exception