How to use

builder

method

in

org.kie.workbench.common.stunner.core.definition.annotation.Definition

private Class<? extends Builder<?>> getDefinitionBuilderClass(Class<?> definitionClass) {
  Definition annotation = definitionClass.getAnnotation(Definition.class);
  if (null != annotation && annotation.builder() != VoidBuilder.class) {
    return annotation.builder();
  }
  return null;
}

private void processDefinitionModelBuilder(final Element e,
                      final String className,
                      final Map<String, TypeConstructor> processingContextMap) {
  Definition definitionAnn = e.getAnnotation(Definition.class);
  TypeMirror bMirror = null;
  try {
    definitionAnn.builder();
  } catch (MirroredTypeException mte) {
    bMirror = mte.getTypeMirror();
  }
  if (null != bMirror && !VoidBuilder.class.getName().equals(bMirror.toString())) {
    String fqcn = bMirror.toString();
    processingContextMap.put(className,
                 TypeConstructor.builder(fqcn));
  } else {
    processingContextMap.put(className,
                 TypeConstructor.constructor(className));
  }
}