org.logicalcobwebs.cglib.core
Class AbstractClassGenerator

java.lang.Object
  org.logicalcobwebs.cglib.core.AbstractClassGenerator

All Implemented Interfaces:

ClassGenerator

Direct Known Subclasses:

ConstructorDelegate.Generator, Enhancer, FastClass.Generator, KeyFactory.Generator, MethodDelegate.Generator, Mixin.Generator, MulticastDelegate.Generator, ParallelSorter.Generator, StringSwitcher.Generator

public abstract class AbstractClassGenerator
extends java.lang.Object
implements ClassGenerator

Abstract class for all code-generating CGLIB utilities. In addition to caching generated classes for performance, it provides hooks for customizing the ClassLoader, name of the generated class, and transformations applied before generation.

Nested Class Summary

protected static class

AbstractClassGenerator.Source

Field Summary

private java.lang.ClassLoader	classLoader
private java.lang.Object	key
private static java.lang.Object	NAME_KEY
private java.lang.String	namePrefix
private NamingPolicy	namingPolicy
private AbstractClassGenerator.Source	source
private GeneratorStrategy	strategy
private boolean	useCache

Constructor Summary

protected

AbstractClassGenerator(AbstractClassGenerator.Source source)

Method Summary

protected java.lang.Object	create(java.lang.Object key)
protected abstract java.lang.Object	firstInstance(java.lang.Class type)
protected java.lang.ClassLoader	getClassLoader()
protected java.lang.String	getClassName()
private java.lang.String	getClassName(java.lang.ClassLoader loader)
private java.util.Set	getClassNameCache(java.lang.ClassLoader loader)
protected abstract java.lang.ClassLoader	getDefaultClassLoader()
protected abstract java.lang.Object	nextInstance(java.lang.Object instance)
void	setClassLoader(java.lang.ClassLoader classLoader) Set the ClassLoader in which the class will be generated.
protected void	setNamePrefix(java.lang.String namePrefix)
void	setNamingPolicy(NamingPolicy namingPolicy) Override the default naming policy.
void	setStrategy(GeneratorStrategy strategy) Set the strategy to use to create the bytecode from this generator.
void	setUseCache(boolean useCache) Whether use and update the static cache of generated classes for a class with the same properties.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.logicalcobwebs.cglib.core.ClassGenerator

generateClass

Field Detail

NAME_KEY

private static final java.lang.Object NAME_KEY

strategy

private GeneratorStrategy strategy

namingPolicy

private NamingPolicy namingPolicy

source

private AbstractClassGenerator.Source source

classLoader

private java.lang.ClassLoader classLoader

namePrefix

private java.lang.String namePrefix

key

private java.lang.Object key

useCache

private boolean useCache

Constructor Detail

AbstractClassGenerator

protected AbstractClassGenerator(AbstractClassGenerator.Source source)

Method Detail

setNamePrefix

protected void setNamePrefix(java.lang.String namePrefix)

getClassName

protected final java.lang.String getClassName()

getClassName

private java.lang.String getClassName(java.lang.ClassLoader loader)

getClassNameCache

private java.util.Set getClassNameCache(java.lang.ClassLoader loader)

setClassLoader

public void setClassLoader(java.lang.ClassLoader classLoader)

Set the ClassLoader in which the class will be generated. Concrete subclasses of AbstractClassGenerator (such as Enhancer) will try to choose an appropriate default if this is unset.

Classes are cached per-ClassLoader using a WeakHashMap, to allow the generated classes to be removed when the associated loader is garbage collected.

Parameters:

classLoader - the loader to generate the new class with, or null to use the default

setNamingPolicy

public void setNamingPolicy(NamingPolicy namingPolicy)

Override the default naming policy.

Parameters:

namingPolicy - the custom policy, or null to use the default

See Also:

DefaultNamingPolicy

setUseCache

public void setUseCache(boolean useCache)

Whether use and update the static cache of generated classes for a class with the same properties. Default is true.

setStrategy

public void setStrategy(GeneratorStrategy strategy)

Set the strategy to use to create the bytecode from this generator. By default an instance of DefaultGeneratorStrategy is used.

getClassLoader

protected java.lang.ClassLoader getClassLoader()

getDefaultClassLoader

protected abstract java.lang.ClassLoader getDefaultClassLoader()

create

protected java.lang.Object create(java.lang.Object key)

firstInstance

protected abstract java.lang.Object firstInstance(java.lang.Class type)
                                           throws java.lang.Exception

Throws:

java.lang.Exception

nextInstance

protected abstract java.lang.Object nextInstance(java.lang.Object instance)
                                          throws java.lang.Exception

Throws:

java.lang.Exception