code: public void processSpace(Properties properties) {
          String transformClassName = properties.getProperty(TRANSFORM_PROPERTY);
          if (transformClassName == null)
              return;
  
  
          Transform transform = ReflectionUtil.getObjectInstance(transformClassName);
          processSpace(transform);
      }
docs: Transforms the word vectors of this instance if the {@value
  #TRANSFORM_PROPERTY} is set or otherwise, does nothing.  Once the values
  of this space have been transformed, subsequent calls to {@link
  #processDocument(BufferedReader)} will throw an {@link
  IllegalStateException}.
  
  @param properties {@inheritDoc}
  
  @throws NullPointerException if properties is {@code null}
  @throws Error if {@code properties} contains a value for {@value
  #TRANSFORM_PROPERTY} which is not a class name or is not a name
  of class that implements {@link Transform}