analysis/org.eclipse.tracecompass.analysis.lami.core/src/org/eclipse/tracecompass/internal/provisional/analysis/lami/core/aspect/LamiEmptyAspect.java

   1 /*******************************************************************************
   2  * Copyright (c) 2015, 2016 EfficiOS Inc., Alexandre Montplaisir
   3  *
   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
   8  *******************************************************************************/
   9
  10 package org.eclipse.tracecompass.internal.provisional.analysis.lami.core.aspect;
  11
  12 import java.util.Comparator;
  13
  14 import org.eclipse.jdt.annotation.NonNull;
  15 import org.eclipse.jdt.annotation.Nullable;
  16 import org.eclipse.tracecompass.internal.provisional.analysis.lami.core.module.LamiTableEntry;
  17
  18 /**
  19  * Null aspect for LAMI tables, normally printing nothing in the corresponding
  20  * cells. Should be access using {@link #INSTANCE}.
  21  *
  22  * @author Alexandre Montplaisir
  23  */
  24 public class LamiEmptyAspect extends LamiTableEntryAspect {
  25
  26     /** Singleton instance */
  27     public static final LamiEmptyAspect INSTANCE = new LamiEmptyAspect();
  28
  29     private LamiEmptyAspect() {
  30         super("", null); //$NON-NLS-1$
  31     }
  32
  33     @Override
  34     public boolean isContinuous() {
  35         return false;
  36     }
  37
  38     @Override
  39     public @Nullable String resolveString(LamiTableEntry entry) {
  40         return null;
  41     }
  42
  43     @Override
  44     public boolean isTimeStamp() {
  45         return false;
  46     }
  47
  48     @Override
  49     public @Nullable Number resolveNumber(@NonNull LamiTableEntry entry) {
  50         return null;
  51     }
  52
  53     @Override
  54     public Comparator<LamiTableEntry> getComparator() {
  55         return (o1, o2) -> 0;
  56     }
  57
  58 }