hep.physics.event
Class BaseEvent

java.lang.Object
  hep.physics.event.BaseEvent

All Implemented Interfaces:

HEPEvent

Direct Known Subclasses:

GeneratorEvent

public class BaseEvent
extends java.lang.Object
implements HEPEvent

A simple implementation of HEPEvent

Author:

Tony Johnson

Constructor Summary

BaseEvent(int run, int event)

BaseEvent(int run, int event, long timestamp)
Create a new event with an explicit timestamp

Method Summary

java.lang.Object	get(java.lang.String key) Get an object from the event
int	getEventNumber()
int	getRunNumber()
java.util.Map	getTags() An arbitrary set of tags that can be associated with the event.
long	getTimeStamp() Get the current timestamp.
java.util.Set	keys()
void	put(java.lang.String key, java.lang.Object component) Puts an arbitrary object into the event

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseEvent

public BaseEvent(int run,
                 int event)

Parameters:

run - The run number

event - Create a new event. The timestamp will be set to the current time.

BaseEvent

public BaseEvent(int run,
                 int event,
                 long timestamp)

Create a new event with an explicit timestamp

Parameters:

run - Teh run number

event - The event number

timestamp - The timestamp. By convention this is measured in nS since 1-jan-1970 GMT.

Method Detail

get

public java.lang.Object get(java.lang.String key)

Description copied from interface: HEPEvent

Get an object from the event

Specified by:

get in interface HEPEvent

Parameters:

key - The key for the object

getEventNumber

public int getEventNumber()

Specified by:

getEventNumber in interface HEPEvent

Returns:

The event number

getRunNumber

public int getRunNumber()

Specified by:

getRunNumber in interface HEPEvent

Returns:

The run number for this event

getTags

public java.util.Map getTags()

Description copied from interface: HEPEvent

An arbitrary set of tags that can be associated with the event. Intended to be used for fast event selection.

Specified by:

getTags in interface HEPEvent

keys

public java.util.Set keys()

Specified by:

keys in interface HEPEvent

Returns:

The set of keys stored in the event

put

public void put(java.lang.String key,
                java.lang.Object component)

Description copied from interface: HEPEvent

Puts an arbitrary object into the event

Specified by:

put in interface HEPEvent

Parameters:

key - The key for this object

component - The object to add

getTimeStamp

public long getTimeStamp()

Description copied from interface: HEPEvent

Get the current timestamp. By convention this is measured in nS since 1-jan-1970 GMT.

Specified by:

getTimeStamp in interface HEPEvent

Returns:

The timestamp.