DB2 Type 4 UDB JDBC driver parameters for bidirectional layout transformations procedure

The following table contains integer values and corresponding attributes for the serverBidiStringType and clientBidiStringType properties.

Table 1. Property values and corresponding attributes for the serverBidiStringType and clientBidiStringType properties
Value Type of text Text Orientation Symmetric swapping Numeral shape Text shapes
4 Visual Left-to-right No Nominal Shaped
5 Logical Left-to-right Yes Nominal Nominal
6 Logical Right-to-left Yes Nominal Nominal
7 Visual Right-to-left No Nominal Shaped
8 Visual Right-to-left No Nominal Shaped
9 Logical Right-to-left Yes Nominal Shaped
10 Logical Contextual left-to-right Yes Nominal Nominal
11 Logical Contextual right-to-left Yes Nominal Nominal
Consider the following descriptions of the attributes listed in Table 1:
Type of text
Specifies the relationship between the order of text as stored in memory or on external media and its order for correct display. Possible values are:
  • Visual – text is stored in the same order as it is displayed.
  • Logical – text is stored in the order it is intended to be read.
Text orientation
Specifies the direction in which the text is stored. Possible values are:
  • Left-to-right – marks the text as left-to-right.
  • Right-to-left – marks the text as right-to-left.
  • Contextual left-to-right – the direction of the text is determined by analyzing the text itself. If the first strong character belongs to the left-to-right script or there are no strong characters in the text, it is marked as left-to-right. If the first strong character belongs to a right-to-left script, the text is marked as right-to-left.
  • Contextual right-to-left – the direction of the text is determined by analyzing the text itself. If the first strong character belongs to the left-to-right script, the text is marked as left-to-right. If the first strong character belongs to a right-to-left script or there are no strong characters in the text, it is marked as right-to-left.
Symmetric swapping
Specifies whether characters that have an implied directional meaning, such as <, >, (, ), and so on, are replaced with their mirror images. This option is meant for texts that are written in right-to-left writing systems and are stored in Visual order. Symmetric swapping is not performed for texts that are stored in logical order. Possible values are:
  • Yes – symmetric swapping is enabled.
  • No – symmetric swapping is disabled.
Numeral shape
Specifies whether numbers are presented by using the European digit shapes or the Arabic-Indic digit shapes. Possible values are:
  • Nominal – numbers are presented by using the European digit shapes.
  • National – numbers are presented by using the Arabic-Indic digit shapes.
Text shapes
Specifies the encoding for Arabic symbols. Possible values are:
  • Nominal – Arabic letters are encoded with intrinsic code points, in the "06xx" range for Unicode.
  • Shaped – Arabic letters are encoded as presentation forms which can be Initial, Middle, Final, or Isolated.