Mapping single-valued fields

Java Open Clients

Accessing ABL ProDataSets : Preparing and passing ProDataSets as ProDataGraph parameters : Managing ProDataObject mappings to temp-tables : Mapping single-valued fields

As described in a previous section (see Java SDO Foundations), a DataObject (and its ProDataObject extension) represents a temp-table field as a column Property object containing its value, with an associated Type object, specifying its data type. The following table shows the ProDataObject mappings to temp-table fields supported by ABL.

Table 11. Java ProDataObject mappings to temp-table fields
ABL temp-table field data type	Java ProDataObject Property data type
BLOB	byte[]
CHARACTER	java.lang.String
CLOB	java.loan.String
COM-HANDLE	long
DATE	java.util.GregorianCalendar
DATETIME	java.util.GregorianCalendar
DATETIME-TZ	java.util.GregorianCalendar
DECIMAL	java.math.BigDecimal
INT64	long
INTEGER	int
LOGICAL	boolean
RAW	byte[]
RECID	long
ROWID	byte[]
WIDGET-HANDLE	long

In addition to the value, the Property object contains other information about the ProDataObject column that corresponds to the temp-table field, including its position in the row of columns (indicated by a property index) and the property name, which is identical to the ABL name of the temp-table field.

The ProDataObject class has methods for setting and getting the values of its column Property objects, accessed by property name or index according to data type. For more information, see ProDataObject class.