org.eclipse.linuxtools.lttng2.ui/src/org/eclipse/linuxtools/internal/lttng2/ui/views/control/model/impl/TraceControlContentProvider.java

   1 /**********************************************************************
   2  * Copyright (c) 2012 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  *   Bernd Hufmann - Initial API and implementation
  11  **********************************************************************/
  12 package org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.impl;
  13
  14 import org.eclipse.jface.viewers.ITreeContentProvider;
  15 import org.eclipse.jface.viewers.Viewer;
  16 import org.eclipse.linuxtools.internal.lttng2.ui.views.control.model.ITraceControlComponent;
  17
  18 /**
  19  * <p>
  20  * Tree content provider implementation for trace control view.
  21  * </p>
  22  *
  23  * @author Bernd Hufmann
  24  */
  25 public class TraceControlContentProvider implements ITreeContentProvider {
  26     // ------------------------------------------------------------------------
  27     // Operations
  28     // ------------------------------------------------------------------------
  29     /*
  30      * (non-Javadoc)
  31      * @see org.eclipse.jface.viewers.IContentProvider#dispose()
  32      */
  33     @Override
  34     public void dispose() {
  35     }
  36
  37     /*
  38      * (non-Javadoc)
  39      * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
  40      */
  41     @Override
  42     public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
  43     }
  44
  45     /*
  46      * (non-Javadoc)
  47      * @see org.eclipse.jface.viewers.ITreeContentProvider#getElements(java.lang.Object)
  48      */
  49     @Override
  50     public Object[] getElements(Object inputElement) {
  51         return getChildren(inputElement);
  52     }
  53
  54     /*
  55      * (non-Javadoc)
  56      * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
  57      */
  58     @Override
  59     public Object[] getChildren(Object parentElement) {
  60
  61         if (parentElement instanceof ITraceControlComponent) {
  62             return ((ITraceControlComponent)parentElement).getChildren();
  63         }
  64         return new Object[0];
  65     }
  66
  67     /*
  68      * (non-Javadoc)
  69      * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
  70      */
  71     @Override
  72     public Object getParent(Object element) {
  73         if (element instanceof ITraceControlComponent) {
  74             return ((ITraceControlComponent)element).getParent();
  75         }
  76         return null;
  77     }
  78
  79     /*
  80      * (non-Javadoc)
  81      * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
  82      */
  83     @Override
  84     public boolean hasChildren(Object element) {
  85         if (element instanceof ITraceControlComponent) {
  86             return ((ITraceControlComponent)element).hasChildren();
  87         }
  88         return false;
  89     }
  90 }