er.extensions.foundation

Class ERXSelectorUtilities

java.lang.Object

er.extensions.foundation.ERXSelectorUtilities

public class ERXSelectorUtilities
extends Object

NSSelector utilities. These exist mostly to allow selector invocation without explicitly catching the non-runtime exceptions that can be thrown by NSSelector.invoke().

Constructor Summary

Constructors

Constructor and Description
ERXSelectorUtilities()

Method Summary

Modifier and Type	Method and Description
static <T> T	invoke(com.webobjects.foundation.NSSelector<T> sel, Object o) Just like the NSSelector method of the same name, except only runtime exceptions are thrown.
static <T> T	invoke(com.webobjects.foundation.NSSelector<T> sel, Object o, Object argument1) Just like the NSSelector method of the same name, except only runtime exceptions are thrown.
static <T> T	invoke(com.webobjects.foundation.NSSelector<T> sel, Object o, Object[] params) Just like the NSSelector method of the same name, except only NSForwardExceptions are thrown.
static <T> T	invoke(com.webobjects.foundation.NSSelector<T> sel, Object o, Object argument1, Object argument2) Just like the NSSelector method of the same name, except only runtime exceptions are thrown.
static com.webobjects.foundation.NSSelector<Void>	notificationSelector(String methodName) Utility that returns a selector you can use with the NSNotificationCenter.

Methods inherited from class java.lang.Object

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

Constructor Detail

ERXSelectorUtilities

public ERXSelectorUtilities()

Method Detail

invoke

public static <T> T invoke(com.webobjects.foundation.NSSelector<T> sel,
                           Object o,
                           Object[] params)

Just like the NSSelector method of the same name, except only NSForwardExceptions are thrown.

Parameters:

sel - the selector to invoke

o - the target object of the selector

params - the arguments for the invoked selector method

Returns:

the result of the invoked method

See Also:

NSSelector.invoke(Object, Object[])

invoke

public static <T> T invoke(com.webobjects.foundation.NSSelector<T> sel,
                           Object o)

Just like the NSSelector method of the same name, except only runtime exceptions are thrown.

Parameters:

sel - the selector to invoke

o - the target object of the selector

Returns:

the result of the invoked method

See Also:

NSSelector.invoke(Object)

invoke

public static <T> T invoke(com.webobjects.foundation.NSSelector<T> sel,
                           Object o,
                           Object argument1)

Just like the NSSelector method of the same name, except only runtime exceptions are thrown.

Parameters:

sel - the selector to invoke

o - the target object of the selector

argument1 - the method argument

Returns:

the result of the invoked method

See Also:

NSSelector.invoke(Object, Object)

invoke

public static <T> T invoke(com.webobjects.foundation.NSSelector<T> sel,
                           Object o,
                           Object argument1,
                           Object argument2)

Just like the NSSelector method of the same name, except only runtime exceptions are thrown.

Parameters:

sel - the selector to invoke

o - the target object of the selector

argument1 - the first method argument

argument2 - the second method argument

Returns:

the result of the invoked method

See Also:

NSSelector.invoke(Object, Object, Object)

notificationSelector

public static com.webobjects.foundation.NSSelector<Void> notificationSelector(String methodName)

Utility that returns a selector you can use with the NSNotificationCenter.

Parameters:

methodName -

Returns:

A selector suitable for firing a notification