org.eclipse.linuxtools.tmf.core/src/org/eclipse/linuxtools/tmf/core/event/matching/TmfEventMatches.java

   1 /*******************************************************************************
   2  * Copyright (c) 2013 École Polytechnique de Montréal
   3  *
   4  * All rights reserved. This program and the accompanying materials are made
   5  * 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
   8  *
   9  * Contributors:
  10  *   Geneviève Bastien - Initial implementation and API
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.tmf.core.event.matching;
  14
  15 import java.util.Collection;
  16
  17 import org.eclipse.linuxtools.tmf.core.trace.ITmfTrace;
  18
  19 /**
  20  * Class that does something with a match.
  21  *
  22  * This default implementation of the class just counts the matches
  23  *
  24  * @author Geneviève Bastien
  25  * @since 3.0
  26  */
  27 public class TmfEventMatches implements IMatchProcessingUnit {
  28
  29     private int fMatchCount;
  30
  31     /**
  32      * Constructor
  33      */
  34     public TmfEventMatches() {
  35         fMatchCount = 0;
  36     }
  37
  38     /**
  39      * IMatchProcessingUnit overrides
  40      */
  41
  42     @Override
  43     public void init(Collection<ITmfTrace> fTraces) {
  44         fMatchCount = 0;
  45     }
  46
  47     @Override
  48     public void addMatch(TmfEventDependency match) {
  49         fMatchCount++;
  50     }
  51
  52     @Override
  53     public void matchingEnded() {
  54
  55     }
  56
  57     @Override
  58     public int countMatches() {
  59         return fMatchCount;
  60     }
  61
  62     /**
  63      * Returns the match at the specified index
  64      *
  65      * @param index
  66      *            The index of the match to get
  67      * @return The match at index or null or not present
  68      * @deprecated Matches are not kept anymore, they use up memory for no real reason
  69      */
  70     @Deprecated
  71     public TmfEventDependency getMatch(int index) {
  72         return null;
  73     }
  74
  75     @Override
  76     public String toString() {
  77         return getClass().getSimpleName() + " [ Number of matches found: " + fMatchCount + " ]"; //$NON-NLS-1$ //$NON-NLS-2$
  78     }
  79
  80 }