Package net.minidev.asm

Class BeansAccessBuilder

java.lang.Object

net.minidev.asm.BeansAccessBuilder

public class BeansAccessBuilder
extends java.lang.Object

A builder class for dynamically creating BeansAccess classes for accessing bean properties efficiently. This class utilizes the ASM library to generate bytecode at runtime, thereby bypassing the need for Java reflection.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) java.lang.String	accessClassName
(package private) java.lang.String	accessClassNameInternal
(package private) Accessor[]	accs
(package private) java.lang.String	className
(package private) java.lang.String	classNameInternal
(package private) java.util.HashMap<java.lang.Class<?>,java.lang.reflect.Method>	convMtds
(package private) java.lang.Class<? extends java.lang.Exception>	exceptionClass
(package private) DynamicClassLoader	loader
private static java.lang.String	METHOD_ACCESS_NAME
(package private) java.lang.Class<?>	type

Constructor Summary

Constructors

Constructor	Description
BeansAccessBuilder(java.lang.Class<?> type, Accessor[] accs, DynamicClassLoader loader)	Initializes a new builder instance for a given bean class.

Method Summary

Modifier and Type	Method	Description
void	addConversion(java.lang.Class<?> conv)	Resister a new conversion
void	addConversion(java.lang.Iterable<java.lang.Class<?>> conv)	register multiple new conversion
java.lang.Class<?>	bulid()	build the conversion class.
private void	dumpDebug(byte[] data, java.lang.String destFile)	Dump Generate Code
private void	ifNotEqJmp(org.objectweb.asm.MethodVisitor mv, int param, int value, org.objectweb.asm.Label label)	dump a Jump if not EQ
private void	internalSetFiled(org.objectweb.asm.MethodVisitor mv, Accessor acc)	Dump Set Field Code
private void	throwExIntParam(org.objectweb.asm.MethodVisitor mv, java.lang.Class<?> exCls)	add Throws statement with int param 2
private void	throwExStrParam(org.objectweb.asm.MethodVisitor mv, java.lang.Class<?> exCls)	add Throws statement with String param 2

Methods inherited from class java.lang.Object

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

Field Detail

METHOD_ACCESS_NAME

private static java.lang.String METHOD_ACCESS_NAME

type

final java.lang.Class<?> type

accs

final Accessor[] accs

loader

final DynamicClassLoader loader

className

final java.lang.String className

accessClassName

final java.lang.String accessClassName

accessClassNameInternal

final java.lang.String accessClassNameInternal

classNameInternal

final java.lang.String classNameInternal

convMtds

final java.util.HashMap<java.lang.Class<?>,java.lang.reflect.Method> convMtds

exceptionClass

java.lang.Class<? extends java.lang.Exception> exceptionClass

Constructor Detail

BeansAccessBuilder

public BeansAccessBuilder(java.lang.Class<?> type,
                          Accessor[] accs,
                          DynamicClassLoader loader)

Initializes a new builder instance for a given bean class.

Parameters:

type - type to be access

accs - used accessor

loader - Loader used to store the generated class

Method Detail

addConversion

public void addConversion(java.lang.Iterable<java.lang.Class<?>> conv)

register multiple new conversion

Parameters:

conv - conv list

addConversion

public void addConversion(java.lang.Class<?> conv)

Resister a new conversion

Parameters:

conv - the conv

bulid

public java.lang.Class<?> bulid()

build the conversion class.

Returns:

the new Class

dumpDebug

private void dumpDebug(byte[] data,
                       java.lang.String destFile)

Dump Generate Code

internalSetFiled

private void internalSetFiled(org.objectweb.asm.MethodVisitor mv,
                              Accessor acc)

Dump Set Field Code

Parameters:

mv -

acc -

throwExIntParam

private void throwExIntParam(org.objectweb.asm.MethodVisitor mv,
                             java.lang.Class<?> exCls)

add Throws statement with int param 2

throwExStrParam

private void throwExStrParam(org.objectweb.asm.MethodVisitor mv,
                             java.lang.Class<?> exCls)

add Throws statement with String param 2

ifNotEqJmp

private void ifNotEqJmp(org.objectweb.asm.MethodVisitor mv,
                        int param,
                        int value,
                        org.objectweb.asm.Label label)

dump a Jump if not EQ