Package org.springframework.core

Class LocalVariableTableParameterNameDiscoverer

java.lang.Object

org.springframework.core.LocalVariableTableParameterNameDiscoverer

All Implemented Interfaces:

ParameterNameDiscoverer

@Deprecated(since="6.0.1",
            forRemoval=true)
public class LocalVariableTableParameterNameDiscoverer
extends Object
implements ParameterNameDiscoverer

Deprecated, for removal: This API element is subject to removal in a future version.

as of 6.0.1, in favor of StandardReflectionParameterNameDiscoverer (with the "-parameters" compiler flag)

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.

Since:

2.0

Author:

Adrian Colyer, Costin Leau, Juergen Hoeller, Chris Beams, Sam Brannen

Constructor Summary

Constructors

Constructor	Description
LocalVariableTableParameterNameDiscoverer()	Deprecated, for removal: This API element is subject to removal in a future version.

Method Summary

Modifier and Type	Method	Description
String[]	getParameterNames(Constructor<?> ctor)	Deprecated, for removal: This API element is subject to removal in a future version. Return parameter names for a constructor, or null if they cannot be determined.
String[]	getParameterNames(Method method)	Deprecated, for removal: This API element is subject to removal in a future version. Return parameter names for a method, or null if they cannot be determined.

Methods inherited from class java.lang.Object

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

Constructor Details

LocalVariableTableParameterNameDiscoverer

public LocalVariableTableParameterNameDiscoverer()

Deprecated, for removal: This API element is subject to removal in a future version.

Method Details

getParameterNames

@Nullable
public String[] getParameterNames(Method method)

Deprecated, for removal: This API element is subject to removal in a future version.

Description copied from interface: ParameterNameDiscoverer

Return parameter names for a method, or null if they cannot be determined.

Individual entries in the array may be null if parameter names are only available for some parameters of the given method but not for others. However, it is recommended to use stub parameter names instead wherever feasible.

Specified by:

getParameterNames in interface ParameterNameDiscoverer

Parameters:

method - the method to find parameter names for

Returns:

an array of parameter names if the names can be resolved, or null if they cannot

getParameterNames

@Nullable
public String[] getParameterNames(Constructor<?> ctor)

Deprecated, for removal: This API element is subject to removal in a future version.

Description copied from interface: ParameterNameDiscoverer

Return parameter names for a constructor, or null if they cannot be determined.

Individual entries in the array may be null if parameter names are only available for some parameters of the given constructor but not for others. However, it is recommended to use stub parameter names instead wherever feasible.

Specified by:

getParameterNames in interface ParameterNameDiscoverer

Parameters:

ctor - the constructor to find parameter names for

Returns:

an array of parameter names if the names can be resolved, or null if they cannot