| ExplicitParameterSpecification | An additional contract for parameters which originate from parameters explicitly encountered in the source statement (HQL or native-SQL). |
| ParameterSpecification | Maintains information relating to parameters which need to get bound into a JDBC PreparedStatement. |
| AbstractExplicitParameterSpecification | Convenience base class for explicitly defined query parameters. |
| CollectionFilterKeyParameterSpecification | A specialized ParameterSpecification impl for dealing with a collection-key as part of a collection filter compilation. |
| DynamicFilterParameterSpecification | A specialized ParameterSpecification impl for dealing with a dynamic filter parameters. |
| NamedParameterSpecification | Parameter bind specification for an explicit named parameter. |
| PositionalParameterSpecification | Parameter bind specification for an explicit positional (or ordinal) parameter. |
| VersionTypeSeedParameterSpecification | Parameter bind specification used for optimisitc lock version seeding (from insert statements). |