org.eclipse.linuxtools.ctf.core/src/org/eclipse/linuxtools/ctf/core/event/scope/EventHeaderVScope.java

   1 /*******************************************************************************
   2  * Copyright (c) 2014 Ericsson
   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  *      Matthew Khouzam - Initial API and implementation
  11  *******************************************************************************/
  12
  13 package org.eclipse.linuxtools.ctf.core.event.scope;
  14
  15 import org.eclipse.jdt.annotation.NonNullByDefault;
  16 import org.eclipse.jdt.annotation.Nullable;
  17
  18 /**
  19  * A lttng specific speedup node (v variant for event headers) of a lexical
  20  * scope they normally contain a timestamp
  21  *
  22  * @author Matthew Khouzam
  23  * @since 3.1
  24  */
  25 @NonNullByDefault
  26 public class EventHeaderVScope extends LexicalScope {
  27
  28     /**
  29      * Packet header v id string
  30      */
  31     public static final LexicalScope PACKET_HEADER_V_ID = new LexicalScope(PACKET_HEADER, "id"); //$NON-NLS-1$
  32     /**
  33      * Packet header v timestamp string
  34      */
  35     public static final LexicalScope PACKET_HEADER_V_TIMESTAMP = new LexicalScope(PACKET_HEADER, "timestamp"); //$NON-NLS-1$
  36
  37     /**
  38      * The scope constructor
  39      *
  40      * @param parent
  41      *            The parent node, can be null, but shouldn't
  42      * @param name
  43      *            the name of the field
  44      */
  45     public EventHeaderVScope(LexicalScope parent, String name) {
  46         super(parent, name);
  47     }
  48
  49     @Override
  50     @Nullable
  51     public LexicalScope getChild(String name) {
  52         if (name.equals(PACKET_HEADER_V_TIMESTAMP.getName())) {
  53             return PACKET_HEADER_V_TIMESTAMP;
  54         }
  55         if (name.equals(PACKET_HEADER_V_ID.getName())) {
  56             return PACKET_HEADER_V_ID;
  57         }
  58         return super.getChild(name);
  59     }
  60 }