TagHistoryQueryInterface

All Known Subinterfaces:: TagHistoryProvider<S>

All Known Implementing Classes:: AssociatedHistoryQueryInterface, HistorianQueryInterface, HistorySplitterProvider, RemoteHistorianProvider, SimulatorHistorian, WideDbHistoryProvider

public interface TagHistoryQueryInterface

This interface shares some functions with TagHistoryProvider. It is the minimum set of functions that are used to query tag history from a provider.

Method Summary

Modifier and Type

Method

Description

Results<? extends Result>

browse(QualifiedPath root, BrowseFilter filter)

HistoryQueryExecutor

createQuery(List<ColumnQueryDefinition> paths, QueryController controller)

default List<Aggregate>

getAvailableAggregates()

Returns a list of aggregate functions that can be used with the server.

default List<Annotation>

queryAnnotations(List<QualifiedPath> paths, Date start, Date end, TypeFilter filter, String queryId)

TimelineSet

queryDensity(List<QualifiedPath> paths, Date start, Date end, String queryId)

Method Details
- getAvailableAggregates
  
  default List<Aggregate> getAvailableAggregates()
  
  Returns a list of aggregate functions that can be used with the server. Only expected to be valid if the server is enabled and available. Also, should only return null if the aggregates can not be retrieved for some reason. If the server simply does not support any aggregate functions, an empty list should be returned.
- browse
  
  Results<? extends Result> browse(QualifiedPath root, BrowseFilter filter)
- createQuery
  
  HistoryQueryExecutor createQuery(List<ColumnQueryDefinition> paths, QueryController controller)
- queryDensity
  
  TimelineSet queryDensity(List<QualifiedPath> paths, Date start, Date end, String queryId) throws Exception
  
  Throws:
  
  Exception
- queryAnnotations
  
  default List<Annotation> queryAnnotations(List<QualifiedPath> paths, Date start, Date end, TypeFilter filter, String queryId) throws Exception
  
  Throws:
  
  Exception