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PrioritizedParameterNameDiscoverer (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.core
Class PrioritizedParameterNameDiscoverer

java.lang.Object
  org.springframework.core.PrioritizedParameterNameDiscoverer

All Implemented Interfaces:

ParameterNameDiscoverer

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public class PrioritizedParameterNameDiscoverer
extends Object
implements ParameterNameDiscoverer

ParameterNameDiscoverer implementation that tries several ParameterNameDiscoverers 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 always to return null if no discoverer matches.

Since:

2.0

Author:

Rod Johnson, Juergen Hoeller

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Constructor Summary
PrioritizedParameterNameDiscoverer()

 

Method Summary
void	addDiscoverer(ParameterNameDiscoverer pnd)           Add a further ParameterNameDiscoverer 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 to the list of discoverers that this PrioritizedParameterNameDiscoverer checks.

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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

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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

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