DtMultiConnectionInputPort Class Reference

Input ports are data ports owned by data consumers. More...

Inheritance diagram for DtMultiConnectionInputPort:

Public Member Functions
	DtMultiConnectionInputPort (const DtString &portName)
	Constructor.
virtual	~DtMultiConnectionInputPort ()
	Destructor.
virtual void	receiveData (DtPortData *data, const DtPortConnection *conn)
	clones the specified DtPortData into the connection slot corresponding to the connection.
virtual bool	attemptToActivateConnection (DtPortConnection *conn, int connectionPriority)
	Activated this connection by adding an entry for it in the myCurrentConnections list.
virtual bool	canActivate (const DtPortConnection *conn, int connectionPriority) const
	Checks if this connection can be the active connection.
virtual void	deactivateConnection (DtPortConnection *conn)
	If conn is the currently active connection, it is deactivated and this port has no active input connection.
virtual bool	activeConnection () const
	Returns true if there is an active connection into this port.
virtual bool	connectionActive (const DtPortConnection *connection) const
	Returns true if the specified connection is currently active.
virtual int	connectionPriority () const
	Always returns -1, since any number of active input conenctions are always allowed.
Public Member Functions inherited from DtInputPort
	DtInputPort (const DtString &portName)
	Constructor.
virtual	~DtInputPort ()
	Destructor.
virtual const DtString &	name () const
	Returns the name string of this port.
virtual bool	acceptType (const DtString &type) const =0
	Returns true if this port should accept the recipt of the specified DtPortData type.
virtual void	addConnection (DtPortConnection *conn)
	Add an incomming connection to this port.
virtual void	removeConnection (DtPortConnection *conn)
	Remove an incomming connection to this port.
virtual const DtList *	connectionList () const
	Returns the list of input connections to this port.
virtual bool	newData () const
	Returns true if there is new data on this port that has not been received.
virtual void	dataReceived ()
	Clears the newData flag on this port.
virtual bool	enabled () const
	Enables/disables the port.
virtual void	setEnabled (bool flag)
	Enables/disables the port.

Protected Attributes
DtMultiConnectionInputPortConnectionMap	myCurrentConnections
Protected Attributes inherited from DtInputPort
DtString	myName
bool	myNewDataFlag
bool	myEnabled
DtList	myConnectionList

Private Member Functions
	DtMultiConnectionInputPort ()
	Not implemented.
	DtMultiConnectionInputPort (const DtMultiConnectionInputPort &)
	Not implemented.
DtMultiConnectionInputPort &	operator= (const DtMultiConnectionInputPort &)
	Not implemented.

Detailed Description

Input ports are data ports owned by data consumers.

They receive data from a DtPortConnection, and make that data available to the user of the input port. Users of the port should call newData() to check if new data has arrived on this port, and then call dataReceived() to signal that they have received and processed the data currently on the port.

DtSinleConnectionInputPorts allow only a single active connection at a time. If a connection with a better priority attempts to activate, other connections will be deactivated.

This is an abstract base class. Derived types must provide an acceptType method that specifies which DtPortData types this port is capable if receiving, and accessors for the values within the DtPortData types it is accepting.

Constructor & Destructor Documentation

DtMultiConnectionInputPort::DtMultiConnectionInputPort

(

const DtString &

portName

)

Constructor.

virtual DtMultiConnectionInputPort::~DtMultiConnectionInputPort ( )

virtual

Destructor.

DtMultiConnectionInputPort::DtMultiConnectionInputPort ( )

private

Not implemented.

DtMultiConnectionInputPort::DtMultiConnectionInputPort ( const DtMultiConnectionInputPort &  )

private

Not implemented.

Member Function Documentation

DtMultiConnectionInputPort& DtMultiConnectionInputPort::operator= ( const DtMultiConnectionInputPort &  )

private

Not implemented.

virtual void DtMultiConnectionInputPort::receiveData ( DtPortData *  data, const DtPortConnection *  conn  )

virtual

clones the specified DtPortData into the connection slot corresponding to the connection.

conn must be an active connection for the data to be received.

Implements DtInputPort.

virtual bool DtMultiConnectionInputPort::attemptToActivateConnection ( DtPortConnection *  conn, int  connectionPriority  )

virtual

Activated this connection by adding an entry for it in the myCurrentConnections list.

Implements DtInputPort.

virtual bool DtMultiConnectionInputPort::canActivate ( const DtPortConnection *  conn, int  connectionPriority  ) const

virtual

Checks if this connection can be the active connection.

Implements DtInputPort.

virtual void DtMultiConnectionInputPort::deactivateConnection ( DtPortConnection *  conn )

virtual

If conn is the currently active connection, it is deactivated and this port has no active input connection.

Implements DtInputPort.

virtual bool DtMultiConnectionInputPort::activeConnection ( ) const

virtual

Returns true if there is an active connection into this port.

Implements DtInputPort.

virtual bool DtMultiConnectionInputPort::connectionActive ( const DtPortConnection *  connection ) const

virtual

Returns true if the specified connection is currently active.

Implements DtInputPort.

virtual int DtMultiConnectionInputPort::connectionPriority ( ) const

virtual

Always returns -1, since any number of active input conenctions are always allowed.

Implements DtInputPort.

Member Data Documentation

DtMultiConnectionInputPortConnectionMap DtMultiConnectionInputPort::myCurrentConnections

protected

---

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

• include/vrfobjcore/multiConnectionInputPort.h