javassist.util.proxy

Class FactoryHelper

java.lang.Object

javassist.util.proxy.FactoryHelper

public class FactoryHelper
extends Object

A helper class for implementing ProxyFactory. The users of ProxyFactory do not have to see this class.

See Also:

ProxyFactory

Field Summary

Fields

Modifier and Type	Field and Description
static int[]	dataSize The data size of primitive types.
static Class[]	primitiveTypes Class objects representing primitive types.
static String[]	unwarpMethods The names of methods for obtaining a primitive value from a wrapper object.
static String[]	unwrapDesc The descriptors of the unwrapping methods contained in unwrapMethods.
static String[]	wrapperDesc The descriptors of the constructors of wrapper classes.
static String[]	wrapperTypes The fully-qualified names of wrapper classes for primitive types.

Constructor Summary

Constructors

Constructor and Description
FactoryHelper()

Method Summary

Methods

Modifier and Type	Method and Description
static Class	toClass(ClassFile cf, ClassLoader loader) Loads a class file by a given class loader.
static Class	toClass(ClassFile cf, ClassLoader loader, ProtectionDomain domain) Loads a class file by a given class loader.
static int	typeIndex(Class type) Returns an index for accessing arrays in this class.
static void	writeFile(ClassFile cf, String directoryName) Writes a class file.

Methods inherited from class java.lang.Object

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

Field Detail

primitiveTypes

public static final Class[] primitiveTypes

Class objects representing primitive types.

wrapperTypes

public static final String[] wrapperTypes

The fully-qualified names of wrapper classes for primitive types.

wrapperDesc

public static final String[] wrapperDesc

The descriptors of the constructors of wrapper classes.

unwarpMethods

public static final String[] unwarpMethods

The names of methods for obtaining a primitive value from a wrapper object. For example, intValue() is such a method for obtaining an integer value from a java.lang.Integer object.

unwrapDesc

public static final String[] unwrapDesc

The descriptors of the unwrapping methods contained in unwrapMethods.

dataSize

public static final int[] dataSize

The data size of primitive types. long and double are 2; the others are 1.

Constructor Detail

FactoryHelper

public FactoryHelper()

Method Detail

typeIndex

public static final int typeIndex(Class type)

Returns an index for accessing arrays in this class.

Throws:

RuntimeException - if a given type is not a primitive type.

toClass

public static Class toClass(ClassFile cf,
            ClassLoader loader)
                     throws CannotCompileException

Loads a class file by a given class loader. This method uses a default protection domain for the class but it may not work with a security manager or a sigend jar file.

Throws:

CannotCompileException

See Also:

toClass(ClassFile,ClassLoader,ProtectionDomain)

toClass

public static Class toClass(ClassFile cf,
            ClassLoader loader,
            ProtectionDomain domain)
                     throws CannotCompileException

Loads a class file by a given class loader.

Parameters:

domain - if it is null, a default domain is used.

Throws:

CannotCompileException

Since:

3.3

writeFile

public static void writeFile(ClassFile cf,
             String directoryName)
                      throws CannotCompileException

Writes a class file.

Throws:

CannotCompileException