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-- File: FileParameter.cdl
-- Created: Mon Feb 3 15:49:37 1992
-- Author: Christian CAILLET
-- <cky@phobox>
---Copyright: Matra Datavision 1992
class FileParameter from Interface
---Purpose : Auxiliary class to store a litteral parameter in a file
-- intermediate directory or in an UndefinedContent : a reference
-- type Parameter detains an Integer which is used to address a
-- record in the directory.
-- FileParameter is intended to be stored in a ParamSet : hence
-- memory management is performed by ParamSet, which calls Clear
-- to work, while the Destructor (see Destroy) does nothing.
-- Also a FileParameter can be read for consultation only, not to
-- be read from a Structure to be included into another one.
uses Integer, CString, AsciiString from TCollection, ParamType
is
Create returns FileParameter;
Init (me : in out; val : AsciiString from TCollection; typ : ParamType)
is static;
---Purpose : Fills fields (with Entity Number set to zero)
Init (me : in out; val : CString; typ : ParamType) is static;
---Purpose : Same as above, but builds the Value from a CString
CValue (me) returns CString is static;
---Purpose : Same as above, but as a CString (for immediate exploitation)
-- was C++ : return const
ParamType (me) returns ParamType is static;
---Purpose : Returns the type of the parameter
SetEntityNumber (me : in out; num : Integer) is static;
---Purpose : Allows to set a reference to an Entity in a numbered list
EntityNumber (me) returns Integer is static;
---Purpose : Returns value set by SetEntityNumber
Clear (me : in out) is static;
---Purpose : Clears stored data : frees memory taken for the String Value
Destroy (me : in out) is static;
---Purpose : Destructor. Does nothing because Memory is managed by ParamSet
---C++ : alias ~
fields
thetype : ParamType; -- for ParamType
theval : PCharacter; -- for Value
thenum : Integer; -- for EntityNumber
end FileParameter;
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