How to use

isDisposed

method

in

org.eclipse.swt.widgets.Composite

public boolean isExecutionResultsPaneVisible() {
 return extraViewComposite != null && !extraViewComposite.isDisposed();
}

public boolean isExecutionResultsPaneVisible() {
 return extraViewComposite != null && !extraViewComposite.isDisposed();
}

public void layoutPerfComposite() {
 if ( !perfComposite.isDisposed() ) {
  perfComposite.layout( true, true );
 }
}

public void layoutMetricsComposite() {
 if ( !metricsComposite.isDisposed() ) {
  metricsComposite.layout( true, true );
 }
}

public void layoutMetricsComposite() {
 if ( !metricsComposite.isDisposed() ) {
  metricsComposite.layout( true, true );
 }
}

public void unEdit() {
 if ( text != null && !text.isDisposed() ) {
  text.dispose();
 }
 if ( combo != null && !combo.isDisposed() ) {
  combo.dispose();
 }
}

public void run() {
 if ( perfComposite != null
  && !perfComposite.isDisposed() && canvas != null && !canvas.isDisposed() && transPerfTab != null
  && !transPerfTab.isDisposed() ) {
  if ( transPerfTab.isShowing() ) {
   updateCanvas();
  }
 }
}

 public void run() {
  if ( metricsComposite != null && !metricsComposite.isDisposed() && canvas != null && !canvas.isDisposed()
    && jobMetricsTab != null && !jobMetricsTab.isDisposed() ) {
   if ( jobMetricsTab.isShowing() ) {
    canvas.redraw();
   }
  }
 }
} );

 public void run() {
  if ( metricsComposite != null
   && !metricsComposite.isDisposed() && canvas != null && !canvas.isDisposed() && transMetricsTab != null
   && !transMetricsTab.isDisposed() ) {
   if ( transMetricsTab.isShowing() ) {
    canvas.redraw();
   }
  }
 }
} );

if ( previewComposite == null || previewComposite.isDisposed() ) {
 return;

@Override
public void hide() {
 if ( closing || dialog.getMainArea().isDisposed() || getParentShell( getParent() ).isDisposed()
   || ( getParent() instanceof SwtDialog && ( (SwtDialog) getParent() ).isDisposing() ) ) {
  return;
 }
 // Save the window location & size in the Kettle world...
 //
 WindowProperty windowProperty = new WindowProperty( getShell() );
 PropsUI.getInstance().setScreen( windowProperty );
 super.hide();
}

if ( perfComposite.isDisposed() ) {
 return;

public void addTransPerf() {
 if ( transGraph.extraViewComposite == null || transGraph.extraViewComposite.isDisposed() ) {
  transGraph.addExtraView();
 } else {

/**
 * Add a grid with the execution metrics per step in a table view
 *
 */
public void addJobGrid() {
 // First, see if we need to add the extra view...
 //
 if ( jobGraph.extraViewComposite == null || jobGraph.extraViewComposite.isDisposed() ) {
  jobGraph.addExtraView();
 } else {
  if ( jobGridTab != null && !jobGridTab.isDisposed() ) {
   // just set this one active and get out...
   //
   jobGraph.extraViewTabFolder.setSelection( jobGridTab );
   return;
  }
 }
 jobGridTab = new CTabItem( jobGraph.extraViewTabFolder, SWT.NONE );
 jobGridTab.setImage( GUIResource.getInstance().getImageShowGrid() );
 jobGridTab.setText( BaseMessages.getString( PKG, "Spoon.TransGraph.GridTab.Name" ) );
 addControls();
 jobGridTab.setControl( wTree );
 jobGraph.extraViewTabFolder.setSelection( jobGridTab );
}

if ( transGraph.extraViewComposite == null || transGraph.extraViewComposite.isDisposed() ) {
 transGraph.addExtraView();
} else {

public void addTransMetrics() {
 if ( transGraph.extraViewComposite == null || transGraph.extraViewComposite.isDisposed() ) {
  transGraph.addExtraView();
 } else {

public void addJobMetrics() {
 if ( jobGraph.extraViewComposite == null || jobGraph.extraViewComposite.isDisposed() ) {
  jobGraph.addExtraView();
 } else {

public void addTransHistory() {
 if ( transGraph.extraViewComposite == null || transGraph.extraViewComposite.isDisposed() ) {
  transGraph.addExtraView();
 } else {

public void addJobHistory() {
 if ( jobGraph.extraViewComposite == null || jobGraph.extraViewComposite.isDisposed() ) {
  jobGraph.addExtraView();
 } else {

public void addJobLog() {
 if ( jobGraph.extraViewComposite == null || jobGraph.extraViewComposite.isDisposed() ) {
  jobGraph.addExtraView();
 } else {