How to use

PartitionDoubleClickSelector

in

org.eclipse.jdt.internal.ui.text.java

@Override
public ITextDoubleClickStrategy getDoubleClickStrategy(ISourceViewer sourceViewer, String contentType) {
  if (IDocument.DEFAULT_CONTENT_TYPE.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 0, 0, 0);
  if (IPropertiesFilePartitions.COMMENT.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 0, 0);
  if (IPropertiesFilePartitions.PROPERTY_VALUE.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 1, -1);
  return super.getDoubleClickStrategy(sourceViewer, contentType);
}

protected IRegion findExtendedDoubleClickSelection(IDocument document, int position) {
  try {
    IRegion match= super.findExtendedDoubleClickSelection(document, position);
    if (match != null)
      return match;

protected IRegion findExtendedDoubleClickSelection(IDocument document, int position) {
  try {
    IRegion match= super.findExtendedDoubleClickSelection(document, position);
    if (match != null)
      return match;

@Override
public ITextDoubleClickStrategy getDoubleClickStrategy(ISourceViewer sourceViewer, String contentType) {
  if (IDocument.DEFAULT_CONTENT_TYPE.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 0, 0, 0);
  if (IPropertiesFilePartitions.COMMENT.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 0, 0);
  if (IPropertiesFilePartitions.PROPERTY_VALUE.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 1, -1);
  return super.getDoubleClickStrategy(sourceViewer, contentType);
}

@Override
public ITextDoubleClickStrategy getDoubleClickStrategy(ISourceViewer sourceViewer, String contentType) {
  if (IJavaPartitions.JAVA_DOC.equals(contentType))
    return new JavadocDoubleClickStrategy(getConfiguredDocumentPartitioning(sourceViewer));
  if (IJavaPartitions.JAVA_SINGLE_LINE_COMMENT.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 0, 0);
  if (IJavaPartitions.JAVA_MULTI_LINE_COMMENT.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 0, 0);
  else if (IJavaPartitions.JAVA_STRING.equals(contentType) || IJavaPartitions.JAVA_CHARACTER.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 1, 1);
  if (fJavaDoubleClickSelector == null) {
    fJavaDoubleClickSelector= new JavaDoubleClickSelector();
    fJavaDoubleClickSelector.setSourceVersion(fPreferenceStore.getString(JavaCore.COMPILER_SOURCE));
  }
  return fJavaDoubleClickSelector;
}

@Override
public ITextDoubleClickStrategy getDoubleClickStrategy(ISourceViewer sourceViewer, String contentType) {
  if (IJavaPartitions.JAVA_DOC.equals(contentType))
    return new JavadocDoubleClickStrategy(getConfiguredDocumentPartitioning(sourceViewer));
  if (IJavaPartitions.JAVA_SINGLE_LINE_COMMENT.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 0, 0);
  if (IJavaPartitions.JAVA_MULTI_LINE_COMMENT.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 0, 0);
  else if (IJavaPartitions.JAVA_STRING.equals(contentType) || IJavaPartitions.JAVA_CHARACTER.equals(contentType))
    return new PartitionDoubleClickSelector(getConfiguredDocumentPartitioning(sourceViewer), 1, 1);
  if (fJavaDoubleClickSelector == null) {
    fJavaDoubleClickSelector= new JavaDoubleClickSelector();
    fJavaDoubleClickSelector.setSourceVersion(fPreferenceStore.getString(JavaCore.COMPILER_SOURCE));
  }
  return fJavaDoubleClickSelector;
}