code: public static <E extends ModelEntity<?>> boolean extractAsBoolean(E item, ModelAnnotation annotation, AnnotationAttributeType attribute) {
  		final Elements elementUtils=BaseProcessor.elementUtils;
  		final One<Boolean> result = new One<Boolean>(false);
  
  		extractAttributeValue(elementUtils, item.getElement(), annotation.getName(), attribute, new OnAttributeFoundListener() {
  
  			@Override
  			public void onFound(String value) {
  				result.value0 = Boolean.valueOf(value);
  			}
  		});
  
  		return result.value0;
  	}
docs: Estract from an annotation of a method the attribute value specified.
  
  @param <E> the element type
  @param item            entity to analyze
  @param annotation            annotation to analyze
  @param attribute the attribute
  @return true, if successful