org.jquantlib.quotes
Class Quote

java.lang.Object
  org.jquantlib.quotes.Quote

All Implemented Interfaces:

FunctionDouble, Observable

Direct Known Subclasses:

SimpleQuote

public abstract class Quote
extends java.lang.Object
implements FunctionDouble, Observable

Purely virtual base class for market observables

Author:

Richard Gomes

Field Summary

private Observable

delegatedObservable Implements multiple inheritance via delegate pattern to an inner class

Constructor Summary

Quote()

Method Summary

void	addObserver(Observer observer) Attaches a observer to the Observable.
int	countObservers() Counts how many Observers were attached to this class.
void	deleteObserver(Observer observer) Detaches a previously attached observer to the observable.
void	deleteObservers() Detaches all previously attached observer to the observable.
java.util.List<Observer>	getObservers() Returns list of observers registered with the Observable.
void	notifyObservers() Notifies all attached observers about changes in the observable.
void	notifyObservers(java.lang.Object arg) Notifies all attached observers about changes in the observable.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jquantlib.math.FunctionDouble

evaluate

Field Detail

delegatedObservable

private Observable delegatedObservable

Implements multiple inheritance via delegate pattern to an inner class

See Also:

Observable, DefaultObservable

Constructor Detail

Quote

public Quote()

Method Detail

addObserver

public void addObserver(Observer observer)

Description copied from interface: Observable

Attaches a observer to the Observable. After attachment the observer gets informed about changes in the Observable.

Specified by:

addObserver in interface Observable

Parameters:

observer - The observer to attach to the observable

countObservers

public int countObservers()

Description copied from interface: Observable

Counts how many Observers were attached to this class.

Specified by:

countObservers in interface Observable

Returns:

the number of Observers

See Also:

Observer

deleteObserver

public void deleteObserver(Observer observer)

Description copied from interface: Observable

Detaches a previously attached observer to the observable. After detachment the observer does no longer receive change notifications from the observable.

Specified by:

deleteObserver in interface Observable

Parameters:

observer - The observer to detach from the observable

notifyObservers

public void notifyObservers()

Description copied from interface: Observable

Notifies all attached observers about changes in the observable.

Specified by:

notifyObservers in interface Observable

notifyObservers

public void notifyObservers(java.lang.Object arg)

Description copied from interface: Observable

Notifies all attached observers about changes in the observable.

Specified by:

notifyObservers in interface Observable

Parameters:

arg - an arbitrary Object to be passed to the Observer

deleteObservers

public void deleteObservers()

Description copied from interface: Observable

Detaches all previously attached observer to the observable. After detachment observers do not longer receive change notifications from the observable.

Specified by:

deleteObservers in interface Observable

getObservers

public java.util.List<Observer> getObservers()

Description copied from interface: Observable

Returns list of observers registered with the Observable. List returned is unmodifiable list.

Specified by:

getObservers in interface Observable

Returns:

list of observers