track By
inline fun <T : ContractState> VaultService.trackBy(paging: PageSpecification): DataFeed<Vault.Page<T>, Vault.Update<T>>
inline fun <T : ContractState> VaultService.trackBy(criteria: QueryCriteria): DataFeed<Vault.Page<T>, Vault.Update<T>>
inline fun <T : ContractState> VaultService.trackBy(criteria: QueryCriteria, paging: PageSpecification): DataFeed<Vault.Page<T>, Vault.Update<T>>
inline fun <T : ContractState> VaultService.trackBy(criteria: QueryCriteria, sorting: Sort): DataFeed<Vault.Page<T>, Vault.Update<T>>
inline fun <T : ContractState> VaultService.trackBy(criteria: QueryCriteria, paging: PageSpecification, sorting: Sort): DataFeed<Vault.Page<T>, Vault.Update<T>>