Key to Table 4-7-1: Predefined Fields Attributes
The following table specifies the attributes of each APPX predefined field (PDF). The following items are included in the table:
The PDF name, which is the exact name of the PDF as you would specify it in a statement.
The size of the PDF.
The sign, indicating if the PDF is a signed value.
The storage type, or how the PDF value is stored.
The IPC characteristics, provided in the following three columns:
Pass, the extent to which the PDF value is passed to other processes.
Rec, the extent to which the PDF value is received by other processes.
Share, the extent to which the PDF value is shared with parent processes.
The following abbreviations are used to describe the IPC Characteristics:
sub, communicated with subprocess invocations.
manual, must be manually communicated with statements.
prohib, communication is prohibited.
rcv, communicated with any fully or partially receptive process.
rel/sub, communicated with all subprocess and related invocations.
all, communicated with all invocations regardless of the receptivity level.
Modifiable?, tells whether the PDF value can be changed with statements.
Initial value?, (how the PDF is initialized). When this column contains an asterisk (*), the PDF initial value is controlled by values entered in system administration or at runtime by a user.
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