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Readee

Semantics

The role type Readee corresponds to the requirement that the associated player in a FileIO connection be the next block of data to be read from the front of a sequential file. The format of this block is specified in the RecordFormat property associated with the SeqFile component. The player type ReadNext in UniCon captures the semantics of this data block. The responsibility of the ReadNext player is to act as the next data block to be read from a sequential file in a FileIO connection.

In a FileIO connection whose IOMode is either ReadOnly or ReadWrite, there must be exactly one data block to be read next from the sequential file (i.e., one Readee role/player association). This data block may be NULL.

Connector Types In

A role of type Readee can legally be defined in a connector of the following type:

Player Type
Associations

A role of type Readee can legally be associated with the following player type in a FileIO connection:

Property Defaults

The following are the default values of the properties for the Readee role:

General.ReadNext,
SeqFile.ReadNext

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Author: Gregory Zelesnik

Last Modified: May 12, 1996