com.googlecode.objectify.annotation.Id Java Examples

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Example #1

Source File: ModelUtils.java From nomulus with Apache License 2.0

5 votes

/** Return a string representing the persisted schema of a type or enum. */
static String getSchema(Class<?> clazz) {
  StringBuilder stringBuilder = new StringBuilder();
  Stream<?> body;
  if (clazz.isEnum()) {
    stringBuilder.append("enum ");
    body = Arrays.stream(clazz.getEnumConstants());
  } else {
    stringBuilder.append("class ");
    body =
        getAllFields(clazz)
            .values()
            .stream()
            .filter(field -> !field.isAnnotationPresent(Ignore.class))
            .map(
                field -> {
                  String annotation =
                      field.isAnnotationPresent(Id.class)
                          ? "@Id "
                          : field.isAnnotationPresent(Parent.class) ? "@Parent " : "";
                  String type =
                      field.getType().isArray()
                          ? field.getType().getComponentType().getName() + "[]"
                          : field.getGenericType().toString().replaceFirst("class ", "");
                  return String.format("%s%s %s", annotation, type, field.getName());
                });
  }
  return stringBuilder
      .append(clazz.getName())
      .append(" {\n  ")
      .append(body.map(Object::toString).sorted().collect(Collectors.joining(";\n  ")))
      .append(";\n}")
      .toString();
}