trackBy - corda

corda / net.corda.core.node.services / trackBy

# trackBy

`fun <reified T : ContractState> VaultService.trackBy(): DataFeed<Page<T>, Update<T>>`
`fun <reified T : ContractState> VaultService.trackBy(paging: PageSpecification): DataFeed<Page<T>, Update<T>>`
`fun <reified T : ContractState> VaultService.trackBy(criteria: QueryCriteria): DataFeed<Page<T>, Update<T>>`
`fun <reified T : ContractState> VaultService.trackBy(criteria: QueryCriteria, paging: PageSpecification): DataFeed<Page<T>, Update<T>>`
`fun <reified T : ContractState> VaultService.trackBy(criteria: QueryCriteria, sorting: Sort): DataFeed<Page<T>, Update<T>>`
`fun <reified T : ContractState> VaultService.trackBy(criteria: QueryCriteria, paging: PageSpecification, sorting: Sort): DataFeed<Page<T>, Update<T>>`