javassist.util.proxy

Class FactoryHelper

public class FactoryHelper extends Object

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

Field Summary
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.

Method Summary
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.

Field Detail

dataSize

public static final int[] dataSize

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

primitiveTypes

public static final Class[] primitiveTypes

Class objects representing primitive types.

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.

wrapperDesc

public static final String[] wrapperDesc

The descriptors of the constructors of wrapper classes.

wrapperTypes

public static final String[] wrapperTypes

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

Method Detail

toClass

public static Class toClass(ClassFile cf, ClassLoader loader)

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.

toClass

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

Loads a class file by a given class loader.

Parameters: domain if it is null, a default domain is used.

Since: 3.3

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.

writeFile

public static void writeFile(ClassFile cf, String directoryName)

Writes a class file.