org.eclipse.linuxtools.lttng.core/src/org/eclipse/linuxtools/lttng/core/event/LttngEventField.java

   1 /*******************************************************************************
   2  * Copyright (c) 2009 Ericsson
   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  * Contributors:
  10  *   William Bourque (wbourque@gmail.com) - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.lttng.core.event;
  14
  15 import org.eclipse.linuxtools.tmf.core.event.TmfEventContent;
  16 import org.eclipse.linuxtools.tmf.core.event.TmfEventField;
  17
  18 /**
  19  * <b><u>LttngEventField</u></b><p>
  20  *
  21  * Lttng specific implementation of the TmfEventField.<p>
  22  *
  23  * LttngEventField add a "name" attribute to the Tmf implementation This
  24  * mean the fields will have a name and a value.
  25  */
  26 public class LttngEventField extends TmfEventField {
  27
  28     /**
  29      * Constructor with parameters.<p>
  30      *
  31      * @param parent   Parent content for this field
  32      * @param id       Name (label) of this field
  33      */
  34     public LttngEventField(TmfEventContent parent, String id) {
  35         super(parent, id, null);
  36     }
  37
  38         /**
  39          * Constructor with parameters with optional value.<p>
  40          *
  41          * @param parent   Parent content for this field
  42          * @param id       Name (label) of this field
  43          * @param value    Parsed value (payload) of this field
  44          */
  45         public LttngEventField(TmfEventContent parent, String id, Object value) {
  46                 super(parent, id, value);
  47         }
  48
  49         /**
  50          * Copy constructor.<p>
  51          *
  52          * @param oldField     the field to copy from
  53          */
  54         public LttngEventField(LttngEventField oldField) {
  55                 this(oldField.getContent(), oldField.getId(), oldField.getValue());
  56         }
  57
  58         @Override
  59     @SuppressWarnings("nls")
  60         public String toString() {
  61                 Object value = getValue();
  62             return getId() + ":" + ((value != null) ? value.toString() : "null");
  63         }
  64
  65         @Override
  66         public LttngEventField clone() {
  67                 LttngEventField clone = (LttngEventField) super.clone();
  68                 clone.fValue = fValue;
  69                 return clone;
  70         }
  71
  72 }