Package org.apache.tapestry5.internal

Class EmptyEventContext

org.apache.tapestry5.internal.EmptyEventContext

All Implemented Interfaces:

EventContext

public class EmptyEventContext
extends 
implements EventContext

Placeholder used when no context is available.

Constructor Summary

Constructors

Constructor	Description
EmptyEventContext()

Method Summary

Modifier and Type	Method	Description
<T> T	<T> desiredType, int index)	This should never be called because the count is always zero.
int	getCount()	Always returns zero.
[]	toStrings()	Extracts the value of each context value as a string.

Methods inherited from class java.lang.

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Constructor Detail

EmptyEventContext

public EmptyEventContext()

Method Detail

getCount

public int getCount()

Always returns zero.

Specified by:

getCount in interface EventContext

get

public <T> T <T> desiredType,
                 int index)

This should never be called because the count is always zero.

Specified by:

get in interface EventContext

Parameters:

desiredType - the type of value required

index - identifies which parameter value to extract

Returns:

the value extracted and converted or coerced

toStrings

public [] toStrings()

Description copied from interface: EventContext

Extracts the value of each context value as a string.

Specified by:

toStrings in interface EventContext

Returns:

context values