@Override
  public String toString() {
    if (string != null) {
      return string;
    }

    if (declarable != null) {
      return declarable.toString();
    }
    return "";
  }
Sets the value of the declarable property.

allowed object is {@link DeclarableType }

@param value the declarable type.
geode-core/src/main/java/org/apache/geode/cache/configuration/ObjectType.java