Package org.aoju.bus.core.compiler

Class JavaClassFileManager

java.lang.Object

javax.tools.ForwardingJavaFileManager<JavaFileManager>

org.aoju.bus.core.compiler.JavaClassFileManager

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable, JavaFileManager, OptionChecker

public class JavaClassFileManager
extends ForwardingJavaFileManager<JavaFileManager>

Java 字节码文件对象管理器 正常我们使用javac命令编译源码时会将class文件写入到磁盘中，但在运行时动态编译类不适合保存在磁盘中 我们采取此对象来管理运行时动态编译类生成的字节码

Since:

Java 17+

Author:

Kimi Liu

Nested Class Summary

Nested classes/interfaces inherited from interface javax.tools.JavaFileManager

JavaFileManager.Location

Field Summary

Fields inherited from class javax.tools.ForwardingJavaFileManager

fileManager

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JavaClassFileManager(ClassLoader parent, JavaFileManager fileManager)	构造

Method Summary

Modifier and Type	Method	Description
ClassLoader	getClassLoader(JavaFileManager.Location location)	获得动态编译生成的类的类加载器
JavaFileObject	getJavaFileForOutput(JavaFileManager.Location location, String className, JavaFileObject.Kind kind, FileObject sibling)	获得Java字节码文件对象 编译器编译源码时会将Java源码对象编译转为Java字节码对象

Methods inherited from class javax.tools.ForwardingJavaFileManager

close, contains, flush, getFileForInput, getFileForOutput, getFileForOutputForOriginatingFiles, getJavaFileForInput, getJavaFileForOutputForOriginatingFiles, getLocationForModule, getLocationForModule, getServiceLoader, handleOption, hasLocation, inferBinaryName, inferModuleName, isSameFile, isSupportedOption, list, listLocationsForModules

Methods inherited from class java.lang.Object

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

Constructor Details

JavaClassFileManager

protected JavaClassFileManager(ClassLoader parent,
 JavaFileManager fileManager)

构造

Parameters:

parent - 父类加载器

fileManager - 字节码文件管理器

Method Details

getClassLoader

public ClassLoader getClassLoader(JavaFileManager.Location location)

获得动态编译生成的类的类加载器

Specified by:

getClassLoader in interface JavaFileManager

Overrides:

getClassLoader in class ForwardingJavaFileManager<JavaFileManager>

Parameters:

location - 源码位置

Returns:

动态编译生成的类的类加载器

getJavaFileForOutput

public JavaFileObject getJavaFileForOutput(JavaFileManager.Location location,
 String className,
 JavaFileObject.Kind kind,
 FileObject sibling)

获得Java字节码文件对象 编译器编译源码时会将Java源码对象编译转为Java字节码对象

Specified by:

getJavaFileForOutput in interface JavaFileManager

Overrides:

getJavaFileForOutput in class ForwardingJavaFileManager<JavaFileManager>

Parameters:

location - 源码位置

className - 类名

kind - 文件类型

sibling - Java源码对象

Returns:

Java字节码文件对象