jasext.paw
Class PawEventSource

java.lang.Object
  |
  +--jasext.paw.PawEventSource

All Implemented Interfaces:

AnnotatedEventSource, EventSource, TreeObjectSource

public class PawEventSource

extends java.lang.Object

implements AnnotatedEventSource

A class for opening a PAW file as an event source. Since a PAW file may contain multiple NTuples the PawEventSource is not normally used directly as an event source. Instead the getItems method should be used to find elements within the PAW file which implement AnnotatedEventSource. These items correspond to NTuples within the file and can themselves be fetched using getItem and used as an EventSource. To handle the case where there are no n-tuples in the PAW file we have provided kludgy implementations of the EventSource methods. We need a better way of handling this, such as a new interface such as CompositeEventSource instead of AnnotatedEventSource.

Constructor Summary

PawEventSource(java.lang.String fileName)
Create a PawEventSource connected to the PAW file specified.

Method Summary

void	afterLastEvent()
void	beforeFirstEvent()
void	close() Close the EventSource and free all the resources associated with it.
void	finalize()
java.lang.Class	getEventDataClass()
java.lang.Object	getItem(TreeItem i)
TreeItem[]	getItems()
java.lang.String	getName()
EventData	getNextEvent()
int	getTotalNumberOfEvents()
static void	main(java.lang.String[] argv)

Methods inherited from class java.lang.Object

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

Constructor Detail

PawEventSource

public PawEventSource(java.lang.String fileName)
               throws ModuleException

Create a PawEventSource connected to the PAW file specified.

Parameters:

fileName - the PAW file to open

Method Detail

close

public void close()

Close the EventSource and free all the resources associated with it.

Specified by:

close in interface EventSource

finalize

public void finalize()

Overrides:

finalize in class java.lang.Object

getName

public java.lang.String getName()

Specified by:

getName in interface EventSource

getItems

public TreeItem[] getItems()

Specified by:

getItems in interface AnnotatedEventSource

getItem

public java.lang.Object getItem(TreeItem i)

Specified by:

getItem in interface AnnotatedEventSource

getTotalNumberOfEvents

public int getTotalNumberOfEvents()

Specified by:

getTotalNumberOfEvents in interface EventSource

beforeFirstEvent

public void beforeFirstEvent()

Specified by:

beforeFirstEvent in interface EventSource

afterLastEvent

public void afterLastEvent()

Specified by:

afterLastEvent in interface EventSource

getNextEvent

public EventData getNextEvent()
                       throws EndOfDataException

Specified by:

getNextEvent in interface EventSource

getEventDataClass

public java.lang.Class getEventDataClass()

Specified by:

getEventDataClass in interface EventSource

main

public static void main(java.lang.String[] argv)
                 throws java.lang.Exception