| Abstract-Component | N/A | N/A | Abstract ancestor of Component, DynaBean, and Object types |
| Abstract | N/A | N/A | Abstract skeleton used by the built-in types |
| Array | N/A | N/A | Maps a Java array as a Persistent-Collection |
| Association | N/A | N/A | Interface used by all associations between entities |
| Bag | N/A | N/A | Maps collections with bag semantics |
| BigDecimal | big_decimal | NUMERIC | In Oracle, SQL type is NUMBER |
| Binary | binary | VARBINARY | Basic type for byte arrays |
| Blob | blob | BLOB | Not all drivers support this |
| Boolean | boolean | BIT | A basic type |
| Byte | byte | TINYINT | A basic type |
| CalendarDate | calendar_ date | DATE | A basic type |
| Calendar | calendar | TIMESTAMP | A basic type |
| CharBoolean | N/A | CHAR | Abstract skeleton used to implement yes_no and true_false types |
| Character | character | CHAR | A basic and primitive type |
| Class | class | VARCHAR or VARCHAR2 | Basic type that stores a class' name |
| Clob | clob | CLOB | Not all drivers support this |
| Component | N/A | N/A | Maps the properties of a contained value class on to a group of columns |
| Composite-Custom | N/A | N/A | Adapts CompositeUserType implementations to the Type interface |
| Currency | currency | VARCHAR or VARCHAR2 | Stores ISO code for a currency |
| Custom | N/A | N/A | Adapts UserType implementations to the Type interface |
| Date | date | DATE | A basic type |
| Discriminator | N/A | N/A | Marker interface for types that can be used for discriminator properties (to select the right mapped subclass) |
| Double | double | DOUBLE | A basic and primitive type |
| DynaBean | N/A | N/A | Maps Jakarta Commons DynaBeans |
| Entity | N/A | N/A | Represents a reference to another entity |
| Float | float | FLOAT | A basic and primitive type |
| IdentifierBag | N/A | N/A | Supports experimental idbag, mapping a Collection with bag semantics |
| Identifier | N/A | N/A | Marker interface for types that store identifiers of entities |
| Immutable | N/A | N/A | Abstract superclass for immutable types; extends NullableType |
| Integer | integer | INTEGER | A basic and primitive type |
| List | N/A | N/A | Maps a Java List |
| Literal | N/A | N/A | Marker interface for types that store SQL literals |
| Locale | locale | VARCHAR or VARCHAR2 | Stores ISO code for a locale |
| Long | long | LONG | A basic and primitive type |
| ManyToOne | N/A | N/A | An association between entities |
| Map | N/A | N/A | Maps a Java Map |
| Mutable | N/A | N/A | Abstract superclass for mutable types |
| Nullable | N/A | N/A | Abstract superclass for simple, one column types that can be null |
| Object | N/A | N/A | Handles "any" type mappings |
| OneToOne | N/A | N/A | An association between entities |
| Persistent-Collection | N/A | N/A | Supports persistence of collections and arrays |
| PersistentEnum | N/A | N/A | Maps persistent enumerations |
| Primitive | N/A | N/A | Abstract skeleton for mapping primitive Java types; extends ImmutableType |
| Serializable | serializable | Binary, depends on SQL dialect | Catch-all mapping for serializable classes with no better alternative |
| Set | N/A | N/A | Maps a Java Set |
| Short | short | SMALLINT | A basic and primitive type |
| SortedMap | N/A | N/A | Sorted extension of MapType |
| SortedSet | N/A | N/A | Sorted extension of SetType |
| String | string | VARCHAR or VARCHAR2 | A basic and primitive type |
| Time | time | TIME | A basic type |
| TimeZone | timezone | VARCHAR or VARCHAR2 | Stores time zone ID |
| Timestamp | timestamp | TIMESTAMP | A basic type |
| TrueFalse | true_false | CHAR | Stores Booleans as "T" or "F" |
| Type | N/A | N/A | Superinterface of all these types |
| Version | N/A | N/A | Extends Type for version stamping |
| YesNo | yes_no | CHAR | Stores Booleans as "Y" or "N" |
