@Override public int hashCode() { int result = encounterDateTime != null ? encounterDateTime.hashCode() : 0; result = 31 * result + (visitStartDateTime != null ? visitStartDateTime.hashCode() : 0); result = 31 * result + (targetObsRelation != null ? targetObsRelation.hashCode() : 0); result = 31 * result + (encounterTransactionObservation != null ? encounterTransactionObservation.hashCode() : 0); result = 31 * result + (groupMembers != null ? groupMembers.hashCode() : 0); result = 31 * result + (providers != null ? providers.hashCode() : 0); result = 31 * result + (isAbnormal != null ? isAbnormal.hashCode() : 0); result = 31 * result + (duration != null ? duration.hashCode() : 0); result = 31 * result + (type != null ? type.hashCode() : 0); result = 31 * result + conceptSortWeight; return result; }