Package org.apache.druid.query.lookup

Interface LookupExtractorFactoryContainerProvider

public interface LookupExtractorFactoryContainerProvider
Provides LookupExtractorFactoryContainer to query and indexing time dimension transformations. The most important production implementation is LookupReferencesManager.

  • Method Details

    • getAllLookupNames

      Set<String> getAllLookupNames()
      Returns the set of all lookup names that get(java.lang.String) can return containers for. Note that because the underlying set of valid lookups might change over time, it is not guaranteed that calling get(java.lang.String) on the results will actually yield a container (it might have been removed).

    • get

      Optional<LookupExtractorFactoryContainer> get(String lookupName)
      Returns a lookup container for the provided lookupName, if it exists.

    • getCanonicalLookupName

      String getCanonicalLookupName(String lookupName)
      Returns the canonical lookup name from a given lookup name, if special syntax exists.