org.apache.tapestry.internal
Class URLEventContext

java.lang.Object
  org.apache.tapestry.internal.URLEventContext

All Implemented Interfaces:

EventContext

public class URLEventContext
extends Object
implements EventContext

Implementation based on values extracted from the URL (an event context, or a page activation context) that uses a ContextValueEncoder to convert from string values to the desired values.

Constructor Summary

URLEventContext(ContextValueEncoder valueEncoder, String[] values)

Method Summary

<T> T	get(Class<T> desiredType, int index) Extracts a parameter value and coerces or decodes it to the desired type.
int	getCount() Returns the number of parameter values that can be extracted.

Methods inherited from class java.lang.Object

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

Constructor Detail

URLEventContext

public URLEventContext(ContextValueEncoder valueEncoder,
                       String[] values)

Method Detail

getCount

public int getCount()

Description copied from interface: EventContext

Returns the number of parameter values that can be extracted.

Specified by:

getCount in interface EventContext

get

public <T> T get(Class<T> desiredType,
                 int index)

Description copied from interface: EventContext

Extracts a parameter value and coerces or decodes it to the desired type.

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