MGraphNodeIterator Class Reference

Provides access to the cluster nodes in a given evaluation graph. More...

#include <MGraphNodeIterator.h>

Public Member Functions
	MGraphNodeIterator (const MCustomEvaluatorClusterNode *cluster, MStatus *ReturnStatus)
	Constructor. More...
	MGraphNodeIterator (const MGraphNodeIterator &iterator, MStatus *ReturnStatus)
	Constructor. More...
bool	isDone (MStatus *ReturnStatus=NULL) const
	Checks to see if the iterator has reached the end of the iteration. More...
MEvaluationNode	currentEvaluationNode (MStatus *ReturnStatus=NULL) const
	Returns the evaluation node at the current iterator position. More...
void	next (MStatus *ReturnStatus=NULL) const
	Advances the iterator to the next position in its evaluation graph. More...
void	reset (MStatus *ReturnStatus=NULL)
	Resets the iterator to the first position in its evaluation graph. More...

Static Public Member Functions
static const char *	className ()
	Returns the name of this class. More...

Detailed Description

Provides access to the cluster nodes in a given evaluation graph.

Examples:

constraintEvaluator/constraintEvaluator.cpp, and testMTopologyEvaluator/testMTopologyEvaluator.cpp.

Constructor & Destructor Documentation

MGraphNodeIterator	(	const MCustomEvaluatorClusterNode *	cluster,
		MStatus *	ReturnStatus
	)

Constructor.

Parameters

[in]	cluster	an evaluation cluster. A cluster is a grouping of nodes within the Evaluation Graph that are evaluated together as a single unit. The iterator will point to the root of the cluster.
[out]	ReturnStatus	return status

Status Codes:

• MS::kSuccess the operation succeeded
• MS::kFailure the operation failed (the provided cluster object is possibly invalid)

OPENMAYA_MAJOR_NAMESPACE_OPEN MGraphNodeIterator	(	const MGraphNodeIterator &	iterator,
		MStatus *	ReturnStatus
	)

Constructor.

Parameters

[in]	iterator	another graph iterator object
[out]	ReturnStatus	return status

Status Codes:

• MS::kSuccess the operation succeeded
• MS::kFailure the operation failed (internal failure)

Member Function Documentation

bool isDone

(

MStatus *

ReturnStatus = NULL

)

const

Checks to see if the iterator has reached the end of the iteration.

Parameters

[out]

ReturnStatus

return status

Returns

True if the iteration has completed

Status Codes:

• MS::kSuccess the operation succeeded
• MS::kFailure the operation failed (the iterator object is possibly invalid)

MEvaluationNode currentEvaluationNode

(

MStatus *

ReturnStatus = NULL

)

const

Returns the evaluation node at the current iterator position.

Returns NULL if the iterator is illegal.

Parameters

[out]

ReturnStatus

return status

Returns

evaluation node at current position

Status Codes:

• MS::kSuccess the operation succeeded
• MS::kFailure the operation failed (internal failure)

void next

(

MStatus *

ReturnStatus = NULL

)

const

Advances the iterator to the next position in its evaluation graph.

Parameters

[out]

ReturnStatus

return status

Status Codes:

• MS::kSuccess the operation succeeded
• MS::kFailure the operation failed (internal failure)

void reset

(

MStatus *

ReturnStatus = NULL

)

Resets the iterator to the first position in its evaluation graph.

Parameters

[out]

ReturnStatus

return status

Status Codes:

• MS::kSuccess the operation succeeded
• MS::kFailure the operation failed (internal failure)

const char * className ( )

static

Returns the name of this class.

Returns

Name of this class.

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

• MGraphNodeIterator.h
• MGraphNodeIterator.cpp