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WriteNext

Semantics

The WriteNext player type corresponds to data being written sequentially to the end of a sequential file. Since a sequential file is a passive object that simply contains data, there is no corresponding implementation of this player type in the underlying implementation of a system. It represents an abstraction in UniCon used to describe the action of data being written to a file.

Data can be written sequentially to a file in UniCon by a Filter component via a Pipe connection, and by a Module component via a FileIO connection. The WriteNext player type describes data being written to a file in either situation.

Component Types In

A player of type WriteNext can legally be defined in components of the following types:

General

SeqFile

Role Type
Associations

A player of type WriteNext can legally be associated with the following role types in connections of the specified type:

Writee (of FileIO connector)

Sink (of Pipe connector)

Properties

The following properties can be legally included in the property list of a WriteNext player:

MaxAssocs

The syntax for the MaxAssocs property in a WriteNext player is a single <integer> surrounded by parentheses:

MAXASSOCS (1)

MinAssocs

The syntax for the MinAssocs property in a WriteNext player is a single <integer> surrounded by parentheses:

MINASSOCS (1)

Implementation Considerations

There are no implementation considerations for this player type because there is no correspondence between a WriteNext player type and anything in the underlying implementation of a system.