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79 lines
2.6 KiB
Plaintext
Executable File
79 lines
2.6 KiB
Plaintext
Executable File
-- File: PCDM_ReadWriter.cdl
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-- Created: Tue Dec 9 08:28:48 1997
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-- Author: Jean-Louis Frenkel
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-- <rmi@frilox.paris1.matra-dtv.fr>
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---Copyright: Matra Datavision 1997
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private deferred class ReadWriter from PCDM inherits Transient from Standard
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uses
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ExtendedString from TCollection,
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AsciiString from TCollection,
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Data from Storage,
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Document from CDM,
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MessageDriver from CDM,
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SequenceOfExtendedString from TColStd,
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BaseDriver from Storage,
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OpenMode from Storage,
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SequenceOfReference from PCDM
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is
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Version(me) returns AsciiString from TCollection
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is deferred;
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---Purpose: returns PCDM_ReadWriter_1.
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WriteReferenceCounter(me; aData: mutable Data from Storage; aDocument: Document from CDM)
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is deferred;
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WriteReferences(me; aData: mutable Data from Storage; aDocument: Document from CDM; theReferencerFileName: ExtendedString from TCollection)
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is deferred;
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WriteExtensions(me; aData: mutable Data from Storage; aDocument: Document from CDM)
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is deferred;
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WriteVersion(me; aData: mutable Data from Storage; aDocument: Document from CDM)
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is deferred;
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ReadReferenceCounter(me; theFileName: ExtendedString from TCollection;
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theMsgDriver: MessageDriver from CDM)
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returns Integer from Standard
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is deferred;
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ReadReferences(me; aFileName: ExtendedString from TCollection; theReferences: in out SequenceOfReference from PCDM; theMsgDriver: MessageDriver from CDM)
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is deferred;
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ReadExtensions(me; aFileName: ExtendedString from TCollection; theExtensions: in out SequenceOfExtendedString from TColStd; theMsgDriver: MessageDriver from CDM)
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is deferred;
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ReadDocumentVersion(me; aFileName: ExtendedString from TCollection; theMsgDriver: MessageDriver from CDM)
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returns Integer from Standard
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is deferred;
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---Category: commom methods
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Open(myclass; aDriver: in out BaseDriver from Storage; aFileName: ExtendedString from TCollection; anOpenMode: OpenMode from Storage);
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Reader(myclass; aFileName: ExtendedString from TCollection)
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returns ReadWriter from PCDM;
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---Purpose: returns the convenient Reader for a File.
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--
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Writer(myclass)
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returns ReadWriter from PCDM;
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WriteFileFormat(myclass; aData: mutable Data from Storage; aDocument: Document from CDM);
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FileFormat(myclass; aFileName: ExtendedString from TCollection)
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returns ExtendedString from TCollection;
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---Purpose: tries to get a format in the file. returns an empty
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-- string if the file could not be read or does not have
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-- a FileFormat information.
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end ReadWriter from PCDM;
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