Attribute properties

This section describes the properties that JDBCODA generates for each attribute. For more information about the attributes, see Business object attribute properties.

Name property

JDBCODA obtains the value of the attribute's name from the column name in the database table or view.

Data type property

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 15. 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
 
Note:
If a column's data type is not one of those shown in Table 15, JDBCODA skips the column and displays a message stating that the column cannot be processed.

Cardinality property

JDBCODA sets the cardinality of all simple attributes to 1.

MaxLength property

JDBCODA obtains the length of a string from the length specified for the varchar, char, or text data type.

IsKey property

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.

IsForeignKey property

JDBCODA does not set the IsForeignKey property. You can set it in Business Object Designer.

IsRequired property

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.

AppSpecificInfo property

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.

Note:
You can set additional AppSpecificInfo parameters in Business Object Designer. For information about these parameters, see Application-specific information at the attribute level.

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