April 2003
Intermediate to advanced
750 pages
16h 53m
English
book
EJB 2.0 Development with WebSphere Studio Application Developer
by Ueli Wahli, Wouter Denayer, Lars Schunk, Deborah Shaddon, Martin Weiss
Content preview from EJB 2.0 Development with WebSphere Studio Application Developer
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Developing a BMP entity bean
In this section, we develop a CustomerInfoBmp bean to illustrate the use of BMP.
The CustomerInfoBmp bean represents additional information for a customer of the bank. For each kind of additional information, we create a row in a CUSTOMERINFO table. Additional information could be a photo for printing on the credit card or a scanned image for the identification card.
Underlying table for customer information
Table 13-1 shows the layout of the CUSTOMERINFO table.
| Column name | Type | Length | Key | Nulls | Description |
|---|---|---|---|---|---|
| CUSTOMERID | INTEGER | PK | No | Customer ID | |
| INFOID | INTEGER | PK | No | Information ID (1,2,...) | |
| DESCRIPTION | VARCHAR | 50 | No | Yes | Description of information |
| DATA | BLOB | 10000 | No | Yes | Binary data |
This design allows for ...
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