Package com.blazebit.persistence.impl

Interface AssociationParameterTransformerFactory

All Known Implementing Classes:
ManagedEntityAssociationParameterTransformerFactory, TransientEntityAssociationParameterTransformerFactory
public interface AssociationParameterTransformerFactory
A factory for creating/getting parameter value transformers. When rewriting entity or id expressions in predicates, the opposite side of a predicate could be a parameter. In such a case, the parameter has to be transformed before being passed to the JPA query. This factory provides access to efficient parameter value transformers that can be registered on parameters.
Since:
1.2.0
Author:
Christian Beikov

  • Method Details

    • getToEntityTranformer

      ParameterValueTransformer getToEntityTranformer(Class<?> entityType)
      Returns a parameter value transformer for transforming ids to the given entity type.
      Parameters:
      entityType - The entity type
      Returns:
      The transformer

    • getToIdTransformer

      ParameterValueTransformer getToIdTransformer()
      Returns a parameter value transformer for transforming entity objects to their ids.
      Returns:
      The transformer