org.springframework.core

Interface ParameterNameDiscoverer

All Known Implementing Classes:

DefaultParameterNameDiscoverer, LocalVariableTableParameterNameDiscoverer, PrioritizedParameterNameDiscoverer, StandardReflectionParameterNameDiscoverer

public interface ParameterNameDiscoverer

Interface to discover parameter names for methods and constructors.

Parameter name discovery is not always possible, but various strategies are available to try, such as looking for debug information that may have been emitted at compile time, and looking for argname annotation values optionally accompanying AspectJ annotated methods.

Since:

2.0

Author:

Rod Johnson, Adrian Colyer

Method Summary

Modifier and Type	Method and Description
String[]	getParameterNames(Constructor<?> ctor) Return parameter names for this constructor, or null if they cannot be determined.
String[]	getParameterNames(Method method) Return parameter names for this method, or null if they cannot be determined.

Method Detail

getParameterNames

String[] getParameterNames(Method method)

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

Parameters:

method - method to find parameter names for

Returns:

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

getParameterNames

String[] getParameterNames(Constructor<?> ctor)

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

Parameters:

ctor - constructor to find parameter names for

Returns:

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