@Override
  public int hashCode() {
    // this hashCode needs to be kept consistent with EnumInfo.PdxInstanceEnumInfo
    final int prime = 31;
    int result = 1;
    result = prime * result + ((className == null) ? 0 : className.hashCode());
    result = prime * result + ((enumName == null) ? 0 : enumName.hashCode());
    return result;
  }
Used to represent an enum value as a PdxInstance

@since GemFire 6.6.2
geode-core/src/main/java/org/apache/geode/pdx/internal/PdxInstanceEnum.java