Package concurrent_tree_crawler :: Module standard_node :: Class StandardNode

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Class StandardNode

A simple in-memory implementation of the AbstractNode.

Instance Methods

__init__(self, parent=None, name='sentinel', state=0) source code

threading.Condition

get_children_cond(self)
Returns: condition object related to the children of this node

source code

get_name(self)
Returns: name of the node.

source code

NodeState

get_state(self)
Returns: state of the node

source code

set_state(self, new_state)

source code

AbstractNode, it is None if the node is the sentinel node

get_parent(self)

source code

has_child(self, name)
Returns: True if node has child with given name

source code

AbstractNode

get_child(self, name)

source code

list of AbstractNodes

get_children(self)

source code

AbstractNode

add_child(self, name, state)
Returns: added child node

source code

_has_children(self, state)
An auxiliary method used only by the all_children_are_in_one_of_states method

source code

Inherited from abstract_node.AbstractNode: __str__, all_children_are_in_one_of_states, update_and_get_child

Instance Variables

_children
Array indexed by the NodeState enumeration index

Method Details

init(self, parent=None, name=`'sentinel'`, state=0)
(Constructor)

Parameters:

state (NodeState)
name (string)
parent (StandardNode, equals None if node is the sentinel node)

get_children_cond(self)

Returns: threading.Condition: condition object related to the children of this node
Overrides: abstract_node.AbstractNode.get_children_cond: (inherited documentation)

get_name(self)

Returns:: name of the node. It should be unique among children of this node's parent
Overrides: abstract_node.AbstractNode.get_name: (inherited documentation)

get_state(self)

Returns: NodeState: state of the node
Overrides: abstract_node.AbstractNode.get_state: (inherited documentation)

set_state(self, new_state)

Parameters:

new_state - new state of the node

Overrides: abstract_node.AbstractNode.set_state

(inherited documentation)

get_parent(self)

Returns: AbstractNode, it is None if the node is the sentinel node
Overrides: abstract_node.AbstractNode.get_parent: (inherited documentation)

has_child(self, name)

Returns:: True if node has child with given name
Overrides: abstract_node.AbstractNode.has_child: (inherited documentation)

get_child(self, name)

Returns: AbstractNode
Overrides: abstract_node.AbstractNode.get_child: (inherited documentation)

get_children(self)

Returns: list of AbstractNodes
Overrides: abstract_node.AbstractNode.get_children: (inherited documentation)

add_child(self, name, state)

Returns: AbstractNode: added child node
Overrides: abstract_node.AbstractNode.add_child: (inherited documentation)

_has_children(self, state)

An auxiliary method used only by the all_children_are_in_one_of_states method

Returns:: True iff the node has at least one child in given state
Overrides: abstract_node.AbstractNode._has_children: (inherited documentation)