Package se.liu.ida.hefquin.base.data.mappings

Interface EntityMapping

All Known Implementing Classes:
EntityMappingImpl
public interface EntityMapping
Maps from the global representation of entities to a local representation that is specific to a particular data source (federation member).

  • Method Details

    • applyToTriplePattern

      Set<TriplePattern> applyToTriplePattern(TriplePattern tp)
      Applies this mapping to the given triple pattern and returns the resulting set of triple patterns that is meant to be used as a union. If this mapping is not relevant for any of the entities mentioned in the given triple pattern (i.e., applying the mapping to the triple pattern does not have any effect), then the result of this function is simply a singleton set that contains the given triple pattern without any changes.

    • applyToSolutionMapping

      Set<SolutionMapping> applyToSolutionMapping(SolutionMapping solmap)
      Applies this entity mapping to the given solution mapping, which is assumed to use the global representation of the entities that it binds to its query variables. If this entity mapping is not relevant for any of the entities mentioned in the given solution mapping (i.e., applying this entity mapping to the solution mapping does not have any effect), then the result of this function is simply a singleton set that contains the given solution mapping without any changes.

    • applyInverseToSolutionMapping

      Set<SolutionMapping> applyInverseToSolutionMapping(SolutionMapping solmap)
      Applies the inverse of this entity mapping to the given solution mapping, which is assumed to use the local representation of the entities that it binds to its query variables. If this entity mapping is not relevant for any of the entities mentioned in the given solution mapping (i.e., applying this entity mapping to the solution mapping does not have any effect), then the result of this function is simply a singleton set that contains the given solution mapping without any changes.