org.eclipse.ocl.examples.eventmanager.filters
Class AbstractEventFilter

java.lang.Object
  org.eclipse.ocl.examples.eventmanager.filters.AbstractEventFilter

All Implemented Interfaces:

EventFilter

Direct Known Subclasses:

ClassFilter, ContainmentFilter, EventTypeFilter, LogicalOperationFilterImpl, StructuralFeatureFilter

public abstract class AbstractEventFilter
extends java.lang.Object
implements EventFilter

An EventFilter matches a given specification for the properties of a Notification against an incoming Notification. It is used to pass a Notification specification to an EventManager

Author:

Philipp Berger, Axel Uhl

Constructor Summary

AbstractEventFilter(boolean negated)
default constructor

Method Summary

abstract AbstractEventFilter	clone()
abstract boolean	equals(java.lang.Object obj)
protected java.util.Set<org.eclipse.emf.common.notify.Notification>	expandNewAndOldValueCollections(org.eclipse.emf.common.notify.Notification n) If any of n.getOldValue() and n.getNewValue() is a collection with more than one element, the notification is expanded into one notification per element in the collection.
abstract java.lang.Object	getFilterCriterion() Returns the unique property for an AbstractEventFilter object
abstract int	hashCode()
boolean	isNegated() Returns whether the filter is negated.
void	setNegated(boolean b) Sets whether this filter is negated if the filter is negated it will match every Notification which is not matching the intern specification

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.eclipse.ocl.examples.eventmanager.EventFilter

matchesFor

Constructor Detail

AbstractEventFilter

public AbstractEventFilter(boolean negated)

default constructor

Parameters:

negated - defines whether the filter is negated

Method Detail

hashCode

public abstract int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public abstract boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

getFilterCriterion

public abstract java.lang.Object getFilterCriterion()

Returns the unique property for an AbstractEventFilter object

Specified by:

getFilterCriterion in interface EventFilter

Returns:

isNegated

public boolean isNegated()

Returns whether the filter is negated. If the filter is negated it will match every Notification which is not matching this filter's regular specification.

Specified by:

isNegated in interface EventFilter

Returns:

true if the filter is negated

clone

public abstract AbstractEventFilter clone()

Specified by:

clone in interface EventFilter

Overrides:

clone in class java.lang.Object

setNegated

public void setNegated(boolean b)

Sets whether this filter is negated if the filter is negated it will match every Notification which is not matching the intern specification

Parameters:

b - true for negating the filter, false for not

expandNewAndOldValueCollections

protected java.util.Set<org.eclipse.emf.common.notify.Notification> expandNewAndOldValueCollections(org.eclipse.emf.common.notify.Notification n)

If any of n.getOldValue() and n.getNewValue() is a collection with more than one element, the notification is expanded into one notification per element in the collection. If both, oldValue and newValue are collections with more than one element, all combinations are produced.