| /******************************************************************************* |
| * Copyright (c) 2009, 2018 SAP AG and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v2.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v20.html |
| * |
| * Contributors: |
| * SAP AG - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.ocl.examples.eventmanager.filters; |
| |
| import org.eclipse.emf.common.notify.Notification; |
| import org.eclipse.emf.common.notify.Notifier; |
| |
| /** |
| * Matches an {@link Notification#getEventType() event type}. The constants are |
| * defined in {@link Notifier}. |
| * |
| * @author Philipp Berger, Axel Uhl |
| * |
| */ |
| public class EventTypeFilter extends AbstractEventFilter { |
| private final int eventType; |
| |
| /** |
| * Creates a new {@link EventTypeFilter} with the given filter type. |
| * For the different types @see Notifier |
| * @param eventType |
| * @param negated defines whether the filter is negated |
| */ |
| public EventTypeFilter(int eventType, boolean negated) { |
| super(negated); |
| this.eventType = eventType; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| @Override |
| public boolean equals(Object obj) { |
| if (this == obj) |
| return true; |
| if (obj == null) |
| return false; |
| if (getClass() != obj.getClass()) |
| return false; |
| EventTypeFilter other = (EventTypeFilter) obj; |
| if (eventType != other.eventType) { |
| return false; |
| } |
| return isNegated() == ((AbstractEventFilter) other).isNegated(); |
| } |
| |
| /** |
| * Gives the event type of this filter object |
| * @return an integer representing the event type |
| */ |
| public int getEventType() { |
| return eventType; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.lang.Object#hashCode() |
| */ |
| @Override |
| public int hashCode() { |
| final int prime = 31; |
| int result = 1; |
| result = prime * result + eventType; |
| if (isNegated()) { |
| result = prime * result; |
| } |
| return result; |
| } |
| |
| public boolean matchesFor(Notification event) { |
| return event.getEventType() == getEventType(); |
| } |
| |
| @Override |
| public String toString() { |
| String result; |
| switch (getEventType()) { |
| case 0: |
| result = "filter CREATE"; |
| |
| case 1: |
| result = "filter SET"; |
| |
| case 2: |
| result = "filter UNSET"; |
| |
| case 3: |
| result = "filter ADD"; |
| |
| case 4: |
| result = "filter REMOVE"; |
| |
| case 5: |
| result = "filter ADD_MANY"; |
| |
| case 6: |
| result = "filter REMOVE_MANY"; |
| |
| case 7: |
| result = "filter MOVE"; |
| |
| case 8: |
| result = "filter REMOVING_ADAPTER"; |
| |
| case 9: |
| result = "filter RESOLVE"; |
| } |
| |
| result = "filter undefined"; |
| return (isNegated()?"negated ":"") + result; |
| } |
| |
| @Override |
| public EventTypeFilter clone() { |
| return new EventTypeFilter(getEventType(), isNegated()); |
| |
| } |
| |
| @Override |
| public Object getFilterCriterion() { |
| return getEventType(); |
| } |
| } // EventTypeFilterImpl |