This section describes the properties that JDBCODA generates for each attribute. For more information about the attributes, see Business object attribute properties.
JDBCODA obtains the value of the attribute's name from the column name in the database table or view.
When setting the type of an attribute, JDBCODA converts the data type of a
column in the table or view to a corresponding IBM WebSphere Business
Integration Adapter Business Object type. This conversion is done in
two steps. First, the data type in the database is converted to a JDBC
type. Then, the JDBC type is converted to an IBM WebSphere Business
Integration Adapter Business Object type. The first conversion is done
by the JDBC driver that you are using. Please refer to the JDBC
specification (2.0 and above) for details on individual database type
mapping to a JDBC type. Table 14 shows the conversion from the JDBC
Type to the corresponding IBM WebSphere Business Integration Adapter Business
Object type.
Table 12. Correspondence of data types
JDBC type | WebSphere Business Integration Adapter business object type |
---|---|
BIT |
BOOLEAN |
CHAR |
STRING |
VARCHAR |
STRING |
LONGVARCHAR |
STRING |
INTEGER |
INTEGER |
NUMERIC |
INTEGER |
SMALLINT |
INTEGER |
TINYINT |
INTEGER |
BIGINT |
INTEGER |
DATE |
DATE |
TIME |
DATE |
TIMESTAMP |
DATE |
DECIMAL |
STRING |
DOUBLE |
DOUBLE |
FLOAT |
DOUBLE |
REAL |
FLOAT |
BINARY |
STRING, add BYTEARRAY=TRUE to AppSpecificInfo |
VARBINARY |
STRING, add BYTEARRAY=TRUE to AppSpecificInfo |
JDBCODA sets the cardinality of all simple attributes to 1.
JDBCODA obtains the length of a string from the length specified for the varchar, char, or text data type.
If the column is a primary key in the table, JDBCODA marks it as a key attribute. However, if a view, instead of a table, is selected as the source node to generate Business Objects, JDBCODA does not mark the column as a key attribute. In this case, the key attribute needs to be set manually.
JDBCODA does not set the IsForeignKey property. You can set it in Business Object Designer Express.
If a field is designated not null in the table or view, JDBCODA marks it as a required attribute. However, JDBCODA does not mark the key field as required because there may be a sequence associated with it, or it may be an identity column.
JDBCODA includes two parameters for the AppSpecificInfo property at the attribute level. The syntax of the specified parameters are:
CN=ColumnName
where ColumnName is the name of the column in the database table or view associated with the specific attribute.
BYTEARRAY=true|false
JDBCODA recognizes columns with binary data and creates an attribute of type String with an AppSpecificInfo property of BYTEARRAY=true.