org.springframework.core

Class PrioritizedParameterNameDiscoverer

java.lang.Object

org.springframework.core.PrioritizedParameterNameDiscoverer

All Implemented Interfaces:

ParameterNameDiscoverer

Direct Known Subclasses:

DefaultParameterNameDiscoverer

public class PrioritizedParameterNameDiscoverer
extends Object
implements ParameterNameDiscoverer

ParameterNameDiscoverer implementation that tries several discoverer delegates in succession. Those added first in the addDiscoverer method have highest priority. If one returns null, the next will be tried.

The default behavior is to return null if no discoverer matches.

Since:

2.0

Author:

Rod Johnson, Juergen Hoeller

Constructor Summary

Constructors

Constructor and Description
PrioritizedParameterNameDiscoverer()

Method Summary

Modifier and Type	Method and Description
void	addDiscoverer(ParameterNameDiscoverer pnd) Add a further ParameterNameDiscoverer delegate to the list of discoverers that this PrioritizedParameterNameDiscoverer checks.
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.

Methods inherited from class java.lang.Object

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

Constructor Detail

PrioritizedParameterNameDiscoverer

public PrioritizedParameterNameDiscoverer()

Method Detail

addDiscoverer

public void addDiscoverer(ParameterNameDiscoverer pnd)

Add a further ParameterNameDiscoverer delegate to the list of discoverers that this PrioritizedParameterNameDiscoverer checks.

getParameterNames

public String[] getParameterNames(Method method)

Description copied from interface: ParameterNameDiscoverer

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

Specified by:

getParameterNames in interface ParameterNameDiscoverer

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

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

Description copied from interface: ParameterNameDiscoverer

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

Specified by:

getParameterNames in interface ParameterNameDiscoverer

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