DDD_ConvertExpression Class Reference

Inheritance diagram for DDD_ConvertExpression:

Public Member Functions
virtual void	OnAttributeChanged (DDD_AttributeBase *attribute)
	DDD_ConvertExpression (DDD_AttributeObserver *observer)
virtual	~DDD_ConvertExpression ()
virtual bool	Convert (DDD_EndpointList &inputs, DDD_EndpointList &outputs)
virtual bool	ConfigurationValid (DDD_EndpointList &inputs, DDD_EndpointList &outputs)
virtual bool	Init (const std::string &params)
virtual int	MinInputs ()
virtual int	MaxInputs ()
virtual int	MinOutputs ()
virtual int	MaxOutputs ()
virtual const char *	ClassName ()
virtual const char *	Description ()
Public Member Functions inherited from DDD_ConvertBase
	DDD_ConvertBase ()
const char *	DataDirectorVersion ()
virtual std::string	EndpointInputName (int index)
virtual std::string	EndpointOutputName (int index)
Public Member Functions inherited from DDD_Base
	DDD_Base ()
virtual	~DDD_Base ()
const char *	GetInstanceName () const
virtual void	SetInstanceName (const char *name)
virtual void	SetParams (const DDD_AttributeList &params)
virtual DDD_AttributeList &	GetParams ()

Static Public Attributes
static const char *	CONVERT_EXPRESSION_CLASSNAME

Protected Member Functions
void	ParseExpression ()
virtual void	Evaluate (DDD_EndpointList &inputs, DDD_EndpointList &outputs)
Protected Member Functions inherited from DDD_ConvertBase
bool	InputsOK (int nInputs)
bool	OutputsOK (int nOutputs)

Protected Attributes
DDD_AttributeString *	_expression
bool	_expressionValid
ExprEval::Expression *	_parsedExpression
ExprEval::ValueList *	_vList
Protected Attributes inherited from DDD_Base
std::string	_instanceName
DDD_AttributeList	_params

Additional Inherited Members
Static Public Member Functions inherited from DDD_LogFacade
static void	LogDebug (const char *format,...)
static void	LogInfo (const char *format,...)
static void	LogWarning (const char *format,...)
static void	LogError (const char *format,...)

Constructor & Destructor Documentation

DDD_ConvertExpression

(

DDD_AttributeObserver *

observer

)

Constructor

Parameters

observer

An attribute observer that will observer the parameters of the converter All converter parameters must use this observer for the converter to work right in the Data Director GUI.

virtual ~DDD_ConvertExpression ( )

virtual

Destructor

Member Function Documentation

virtual const char* ClassName ( )

inlinevirtual

Returns

Returns the class name of this converter

Implements DDD_ConvertBase.

Reimplemented in DDD_ConvertSubroutine.

virtual bool ConfigurationValid ( DDD_EndpointList &  inputs, DDD_EndpointList &  outputs  )

virtual

Returns

Returns true if the converter's configuration is valid

Parameters

inputs	List of converter inputs
outputs	List of converter outputs

Reimplemented from DDD_ConvertBase.

virtual bool Convert ( DDD_EndpointList &  inputs, DDD_EndpointList &  outputs  )

virtual

Performs the actual conversion function

Parameters

inputs	A list of inputs to the converter
outputs	A list of outputs to the converter

Returns

True if the converter fired.

Implements DDD_ConvertBase.

virtual const char* Description ( )

virtual

Used by the GUI to explain what this converter does

Returns

Returns a string for the GUI to use

Implements DDD_ConvertBase.

Reimplemented in DDD_ConvertSubroutine.

virtual void Evaluate ( DDD_EndpointList &  inputs, DDD_EndpointList &  outputs  )

protectedvirtual

Evaluate the stored parse tree, updating the inputs

Parameters

inputs	The list of inputs for the connnection
outputs	The list of outputs for the connnection

Reimplemented in DDD_ConvertSubroutine.

virtual bool Init ( const std::string &  params )

virtual

Initializes the converter, if necessary

Parameters

paramString

Returns

True if the converter was successfully initialized.

Reimplemented from DDD_ConvertBase.

Reimplemented in DDD_ConvertSubroutine.

virtual int MaxInputs ( )

virtual

Returns

Returns the maximum number of inputs supported by this converter

Reimplemented from DDD_ConvertBase.

virtual int MaxOutputs ( )

virtual

Returns

Returns the maximum number of outputs supported by this converter

Reimplemented from DDD_ConvertBase.

virtual int MinInputs ( )

virtual

Returns

Returns the minimum number of inputs required by this converter

Reimplemented from DDD_ConvertBase.

virtual int MinOutputs ( )

virtual

Returns

Returns the minimum number of outputs required by this converter

Reimplemented from DDD_ConvertBase.

virtual void OnAttributeChanged ( DDD_AttributeBase *  attribute )

virtual

A callback method that will be called when the attribute being observed changes if this observer has registered to be notified on attribute change

Parameters

attribute

A pointer to the attribute that changed

Implements DDD_AttributeObserver.

void ParseExpression ( )

protected

Parse the input expression and convert it into a parse tree

Member Data Documentation

DDD_AttributeString* _expression

protected

The C expression to interpret

bool _expressionValid

protected

True if the C expression is valid

ExprEval::Expression* _parsedExpression

protected

The C expression as a parse tree

ExprEval::ValueList* _vList

protected

The list of C variables

const char* CONVERT_EXPRESSION_CLASSNAME

static

Classname string constant. Needed by the ConverterFactory

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The documentation for this class was generated from the following file:

• DDD_ConvertExpression.h