程序包 cn.taketoday.core

类 LocalVariableTableParameterNameDiscoverer

java.lang.Object

cn.taketoday.core.ParameterNameDiscoverer

cn.taketoday.core.LocalVariableTableParameterNameDiscoverer

所有已实现的接口:

Function<Class<?>,Map<Executable,String[]>>

public class LocalVariableTableParameterNameDiscoverer
extends ParameterNameDiscoverer
implements Function<Class<?>,Map<Executable,String[]>>

Implementation of ParameterNameDiscoverer that uses the LocalVariableTable information in the method attributes to discover parameter names. Returns null if the class file was compiled without debug information.

Uses ObjectWeb's ASM library for analyzing class files. Each discoverer instance caches the ASM discovered information for each introspected Class, in a thread-safe manner. It is recommended to reuse ParameterNameDiscoverer instances as far as possible.

从以下版本开始:

4.0

作者:

TODAY 2021/9/10 22:34

嵌套类概要

嵌套类

修饰符和类型	类	说明
private static class	LocalVariableTableParameterNameDiscoverer.LocalVariableTableVisitor
private static class	LocalVariableTableParameterNameDiscoverer.ParameterNameDiscoveringVisitor	Helper class that inspects all methods and constructors and then attempts to find the parameter names for the given Executable.

字段概要

字段

修饰符和类型	字段	说明
private static final Logger	log
private static final Map<Executable,String[]>	NO_DEBUG_INFO_MAP
private final ConcurrentHashMap<Class<?>,Map<Executable,String[]>>	parameterNamesCache

构造器概要

构造器

构造器	说明
LocalVariableTableParameterNameDiscoverer()

方法概要

修饰符和类型	方法	说明
Map<Executable,String[]>	apply(Class<?> clazz)
String[]	doGet(Executable executable)
private Map<Executable,String[]>	inspectClass(Class<?> clazz)	Inspects the target class.

从类继承的方法 cn.taketoday.core.ParameterNameDiscoverer

findParameterNames, getParameterNames, getSharedInstance

从类继承的方法 java.lang.Object

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

从接口继承的方法 java.util.function.Function

andThen, compose

字段详细资料

log

private static final Logger log

NO_DEBUG_INFO_MAP

private static final Map<Executable,String[]> NO_DEBUG_INFO_MAP

parameterNamesCache

private final ConcurrentHashMap<Class<?>,Map<Executable,String[]>> parameterNamesCache

构造器详细资料

LocalVariableTableParameterNameDiscoverer

public LocalVariableTableParameterNameDiscoverer()

方法详细资料

doGet

public String[] doGet(Executable executable)

覆盖:

doGet 在类中 ParameterNameDiscoverer

apply

public Map<Executable,String[]> apply(Class<?> clazz)

指定者:

apply 在接口中 Function<Class<?>,Map<Executable,String[]>>

inspectClass

private Map<Executable,String[]> inspectClass(Class<?> clazz)

Inspects the target class.

Exceptions will be logged, and a marker map returned to indicate the lack of debug information.