Package AccessEngine :: Package AEWalkers :: Module Base :: Class AEWalker

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Class AEWalker

object --+
         |
        AEWalker

Walks accessible hiearchy in a well-defined order determined by a subclass of this base class. The traversal is stateless so that the walker can begin at any node in the tree and walk in any direction.

Instance Methods

__init__(self, por)
Stores the starting AEPor.

source code

AEPor

getCurrPOR(self)
Returns: Point of regard to the current object

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AEPor

getParentPOR(self)
Returns: Point of regard to the parent of the current object

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AEPor

getNextPOR(self)
Returns: Point of regard to the next object in the walk order

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AEPor

getPrevPOR(self)
Returns: Point of regard to the previous object in the walk order

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AEPor

getFirstPOR(self)
Returns: Point of regard to the first of all objects

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AEPor

getLastPOR(self)
Returns: Point of regard to the last of all objects

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Inherited from object: __delattr__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __str__

Instance Variables

AEPor

por
The starting AEPor for the AEWalker

Properties

Inherited from object: __class__

Method Details

init(self, por)
(Constructor)

Stores the starting AEPor.

Parameters:

por (AEPor) - The current AEPor for the AEWalker

Overrides: object.__init__

getCurrPOR(self)

Returns: AEPor

Point of regard to the current object

Raises:

NotImplementedError - When not overriden in a subclass

getParentPOR(self)

Returns: AEPor

Point of regard to the parent of the current object

Raises:

NotImplementedError - When not overriden in a subclass

getNextPOR(self)

Returns: AEPor

Point of regard to the next object in the walk order

Raises:

NotImplementedError - When not overriden in a subclass

getPrevPOR(self)

Returns: AEPor

Point of regard to the previous object in the walk order

Raises:

NotImplementedError - When not overriden in a subclass

getFirstPOR(self)

Returns: AEPor

Point of regard to the first of all objects

Raises:

NotImplementedError - When not overriden in a subclass

getLastPOR(self)

Returns: AEPor

Point of regard to the last of all objects

Raises:

NotImplementedError - When not overriden in a subclass