org.springframework.core

类 PrioritizedParameterNameDiscoverer

java.lang.Object

org.springframework.core.PrioritizedParameterNameDiscoverer

所有已实现的接口:

ParameterNameDiscoverer

直接已知子类:

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.

从以下版本开始:

2.0

作者:

Rod Johnson, Juergen Hoeller

构造器概要

构造器

构造器和说明
PrioritizedParameterNameDiscoverer()

方法概要

限定符和类型	方法和说明
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 a constructor, or null if they cannot be determined.
String[]	getParameterNames(Method method) Return parameter names for a method, or null if they cannot be determined.

从类继承的方法 java.lang.Object

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

构造器详细资料

PrioritizedParameterNameDiscoverer

public PrioritizedParameterNameDiscoverer()

方法详细资料

addDiscoverer

public void addDiscoverer(ParameterNameDiscoverer pnd)

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

getParameterNames

@Nullable
public String[] getParameterNames(Method method)

从接口复制的说明: 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.

指定者:

getParameterNames 在接口中 ParameterNameDiscoverer

参数:

method - the method to find parameter names for

返回:

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

getParameterNames

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

从接口复制的说明: 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.

指定者:

getParameterNames 在接口中 ParameterNameDiscoverer

参数:

ctor - the constructor to find parameter names for

返回:

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