hep.analysis
Class EventHandler

java.lang.Object
  |
  +--hep.analysis.EventHandler

Direct Known Subclasses:

EventAnalyzer, EventGenerator

public abstract class EventHandler

extends java.lang.Object

The base class for EventAnalyzer and EventGenerator.

See Also:

EventAnalyzer, EventGenerator

Field Summary

protected java.io.PrintWriter

out The log stream used to send messages.

Constructor Summary

EventHandler()

Method Summary

void	afterLastEvent() Called after the last event is handled.
void	beforeFirstEvent() Called before the first event is handled.
protected Histogram	histogram(java.lang.String name) Returns the Histogram object with the given name in the default folder.
protected Histogram	histogram(java.lang.String name, HistogramFolder parent) Returns the Histogram object with the given name in the given folder.
void	sendMessage(java.lang.String message) Displays a message.

Methods inherited from class java.lang.Object

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

Field Detail

out

protected java.io.PrintWriter out

The log stream used to send messages.

Constructor Detail

EventHandler

public EventHandler()

Method Detail

beforeFirstEvent

public void beforeFirstEvent()

Called before the first event is handled. Does nothing by default. Override to have something happen.

afterLastEvent

public void afterLastEvent()

Called after the last event is handled. Does nothing by default. Override to have something happen.

sendMessage

public void sendMessage(java.lang.String message)

Displays a message.

Parameters:

message - the message to display

histogram

protected final Histogram histogram(java.lang.String name)

Returns the Histogram object with the given name in the default folder. A convenience method equivalent to HistogramFolder.find(name)

Parameters:

name - the name of the histogram to find

Returns:

the Histogram object with the name given by the parameter name.

See Also:

Histogram.find(String)

histogram

protected final Histogram histogram(java.lang.String name,
                                    HistogramFolder parent)

Returns the Histogram object with the given name in the given folder. A convenience method equivalent to HistogramFolder.find(name,parent)

Parameters:

name - the name of the histogram to find

parent - the folder to look in

Returns:

the Histogram object with the name given by the parameter name.

See Also:

Histogram.find(String,HistogramFolder)