public abstract class EmployeePictureBean implements EntityBean
{
....
public abstract byte[] getPicture();
public abstract void setPicture(byte[] newPicture);
public Long ejbCreate(Long empno, byte[] newPicture)
{
setEmpno(empno);
setPicture(newPicture);
return empno;
}

public void ejbPostCreate(Long empno, byte[] newPicture)
{
}
...
}

<entity-deployment name="EmployeePicture" data-source="jdbc/OracleDS"
table="EMPPIC">

<PRimkey-mapping>

<cmp-field-mapping name="empno" persistence-name="EMPNO"
persistence-type="NUMBER(8)"/>

</primkey-mapping>

<cmp-field-mapping name="empno" persistence-name="EMPNO"
persistence-type="NUMBER(8)"/>

<cmp-field-mapping name="picture" persistence-name="PICTURE"
persistence-type="BLOB"/>

</entity-deployment>

// Locate and open the file

File imgFile = new File(fileName);

long imgFileSize= imgFile.length();

// initialize the byte array

byte byteValue[] = new byte[(int)imgFileSize];

// Read the file into the byte array

InputStream is = new BufferedInputStream(new FileInputStream(imgFile));