1 /*******************************************************************************
2 * Copyright (c) 2009, 2010, 2012 Ericsson
4 * All rights reserved. This program and the accompanying materials are
5 * made available under the terms of the Eclipse Public License v1.0 which
6 * accompanies this distribution, and is available at
7 * http://www.eclipse.org/legal/epl-v10.html
10 * Francois Chouinard - Initial API and implementation
11 *******************************************************************************/
13 package org
.eclipse
.linuxtools
.tmf
.core
.component
;
15 import org
.eclipse
.linuxtools
.tmf
.core
.event
.ITmfEvent
;
16 import org
.eclipse
.linuxtools
.tmf
.core
.request
.ITmfRequest
;
17 import org
.eclipse
.linuxtools
.tmf
.core
.trace
.ITmfContext
;
20 * This is the interface of the event providers in TMF. Event providers have the
21 * capability of handling event requests.
23 * @author Francois Chouinard
27 * @see TmfDataProvider
28 * @see TmfEventProvider
30 public interface ITmfEventProvider
extends ITmfComponent
{
33 * Queue the request for processing.
35 * @param request The request to process
37 public void sendRequest(ITmfRequest request
);
40 * Queue the coalesced requests.
42 public void fireRequest();
45 * Increments/decrements the pending requests counters and fires the request
46 * if necessary (counter == 0). Used for coalescing requests across multiple
50 * Should we increment (true) or decrement (false) the pending
53 public void notifyPendingRequest(boolean isIncrement
);
56 * Return the next event based on the context supplied. The context
57 * will be updated for the subsequent read.
59 * @param context the trace read context (updated)
60 * @return the event referred to by context
62 public ITmfEvent
getNext(ITmfContext context
);
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