Default JDeveloper Entity Object Attribute Type Mappings

Table 4-1 Default Entity Object Attribute Type Mappings
Oracle Column Type	Entity Column Type	Entity Java Type
NVARCHAR2(n), VARCHAR2(n), NCHAR VARYING(n), VARCHAR(n)	VARCHAR2	java.lang.String
NUMBER	NUMBER	oracle.jbo.domain.Number
DATE	DATE	oracle.jbo.domain.Date
TIMESTAMP(n), TIMESTAMP(n) WITH TIME ZONE, TIMESTAMP(n) WITH LOCAL TIME ZONE	TIMESTAMP	java.sql.Timestamp
LONG	LONG	java.lang.String
RAW(n)	RAW	oracle.jbo.domain.Raw
LONG RAW	LONG RAW	oracle.jbo.domain.Raw
ROWID	ROWID	oracle.jbo.domain.RowID
NCHAR, CHAR	CHAR	oracle.jbo.domain.Char
CLOB	CLOB	oracle.jbo.domain.ClobDomain
NCLOB	NCLOB	oracle.jbo.domain.NClobDomain
BLOB	BLOB	oracle.jbo.domain.BlobDomain
BFILE	BFILE	oracle.jbo.domain.BFileDomain
ORDSYS.ORDIMAGE	ORDSYS.ORDIMAGE	oracle.ord.im.OrdImageDomain
ORDSYS.ORDVIDEO	ORDSYS.ORDVIDEO	oracle.ord.im.OrdVideoDomain
ORDSYS.ORDAUDIO	ORDSYS.ORDAUDIO	oracle.ord.im.OrdAudioDomain
ORDSYS.ORDDOC	ORDSYS.ORDDOC	oracle.ord.im.OrdDocDomain
Note:
In addition to the types mentioned here, you can use any Java object type as an entity object attribute's type, provided it implements the java.io.Serializable interface.