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-- File: MethodDefinitionsDictionary.cdl
-- Created: Mon Jun 22 18:08:47 1992
-- Author: Gilles DEBARBOUILLE
-- <gde@phobox>
---Copyright: Matra Datavision 1992
deferred class MethodDefinitionsDictionary from Dynamic
inherits
Transient
---Purpose: This class groups in a dictionary of all the
-- various definitions of methods. It also allows the
-- share of the same definition by more than one
-- MethodInstance to preserve a global coherence and
-- also to manage the memory. To use this class an
-- inheritance is necessary with perhaps the overload
-- of the Switch method if the parameter types are
-- not of the type BooleanParameter,
-- IntegerParameter, RealParameter and
-- StringParameter.
uses
CString from Standard,
OStream from Standard,
Boolean from Standard,
Integer from Standard,
HAsciiString from TCollection,
Parameter from Dynamic,
SequenceOfMethodDefinitions from Dynamic,
Method from Dynamic
is
Initialize;
---Level: Internal
---Purpose: Deferred constructor of the class.
Creates(me : mutable ; afilename : CString from Standard)
---Level: Internal
---Purpose: Starting with a file named <afilename>, fills the
-- dictionary with all the wishes definitions.
is static;
Definition(me : mutable ; adefinition : Method from Dynamic) returns Boolean from Standard
---Level: Advanced
---Purpose: This method sets the new definition <adefinition> in
-- the dictionary. It returns true if the operation is
-- successful, false otherwise.
is static;
Switch(me ; aname , atype , avalue : CString from Standard)
---Level: Internal
---Purpose: This virtual method allows the user to add recognition
-- of its own parameters when reading the file to fill
-- the dictionary.
returns Parameter from Dynamic;
Definition(me ; atype : CString from Standard
; adefinition : out Method from Dynamic) returns Boolean from Standard
---Level: Public
---Purpose: Returns from the dictionary in the out variable
-- <adefinition> a reference to the right instance of the
-- definition identified by its type <atype>. The method
-- returns true if the definition exist, false otherwise.
is static;
UpToDate(me) returns Boolean from Standard
---Level: Advanced
---Purpose: Returns true if there has been no modification of the
-- file method-definitions.dat since the creation of the
-- dictionary object, false otherwise.
is static;
NumberOfDefinitions(me) returns Integer from Standard
---Level: Public
---Purpose: Returns the number of definitions stored in the
-- dictionary.
is static;
Definition(me ; anindex : Integer from Standard) returns any Method from Dynamic
---Level: Public
---Purpose: Returns a reference on the definition identified by
-- the index <anidex>.
is static;
Dump(me ; astream : in out OStream from Standard)
---Level: Internal
---Purpose: Useful for debugging.
is static;
fields
thefilename : HAsciiString from TCollection;
thetime : Time from Standard ;
thesequenceofmethoddefinitions : SequenceOfMethodDefinitions from Dynamic ;
end MethodDefinitionsDictionary;
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