madara::expression::ListNode Class Reference

Defines a terminal node that contains a list. More...

#include <ListNode.h>

Inheritance diagram for madara::expression::ListNode:

Public Member Functions
	ListNode (madara::knowledge::ThreadSafeContext &context)
	Ctor. More...
virtual	~ListNode (void)
	Dtor. More...
virtual void	accept (Visitor &visitor) const
	Define the accept() operation used for the Visitor pattern. More...
virtual madara::knowledge::KnowledgeRecord	evaluate (const madara::knowledge::KnowledgeUpdateSettings &settings)
	Evaluates the node and its children. More...
virtual madara::knowledge::KnowledgeRecord	item (void) const
	Return the item stored in the node. More...
virtual ComponentNode *	left (void) const
	Returns the left expression. More...
virtual madara::knowledge::KnowledgeRecord	prune (bool &can_change)
	Prune the tree of unnecessary nodes. More...
virtual ComponentNode *	right (void) const
	Returns the right expression. More...
void	set_logger (logger::Logger &logger)
	Sets the logger for printing errors and debugging info. More...

Protected Attributes
logger::Logger *	logger_
	handle the context More...

Private Attributes
::std::list< ComponentNode * >	list_
	list of trees in a parameter list More...

Detailed Description

Defines a terminal node that contains a list.

Definition at line 27 of file ListNode.h.

Constructor & Destructor Documentation

madara::expression::ListNode::ListNode

(

madara::knowledge::ThreadSafeContext &

context

)

Ctor.

Definition at line 12 of file ListNode.cpp.

madara::expression::ListNode::~ListNode ( void  )

virtual

Dtor.

Definition at line 19 of file ListNode.cpp.

Member Function Documentation

void madara::expression::ListNode::accept ( Visitor &  visitor ) const

virtual

Define the accept() operation used for the Visitor pattern.

Reimplemented from madara::expression::ComponentNode.

Definition at line 26 of file ListNode.cpp.

madara::knowledge::KnowledgeRecord madara::expression::ListNode::evaluate ( const madara::knowledge::KnowledgeUpdateSettings &  settings )

virtual

Evaluates the node and its children.

This does not prune any of the expression tree, and is much faster than the prune function

Implements madara::expression::ComponentNode.

Definition at line 55 of file ListNode.cpp.

madara::knowledge::KnowledgeRecord madara::expression::ListNode::item ( void  ) const

virtual

Return the item stored in the node.

Reimplemented from madara::expression::ComponentNode.

Definition at line 32 of file ListNode.cpp.

madara::expression::ComponentNode * madara::expression::ComponentNode::left ( void  ) const

virtualinherited

Returns the left expression.

Returns

a pointer to the left expression

Reimplemented in madara::expression::CompositeBinaryNode.

Definition at line 34 of file ComponentNode.cpp.

madara::knowledge::KnowledgeRecord madara::expression::ListNode::prune ( bool &  can_change )

virtual

Prune the tree of unnecessary nodes.

Returns evaluation of the node and sets can_change appropriately. if this node can be changed, that means it shouldn't be pruned.

Implements madara::expression::ComponentNode.

Definition at line 42 of file ListNode.cpp.

madara::expression::ComponentNode * madara::expression::ComponentNode::right ( void  ) const

virtualinherited

Returns the right expression.

Returns

a pointer to the right expression

Reimplemented in madara::expression::CompositeUnaryNode.

Definition at line 41 of file ComponentNode.cpp.

void madara::expression::ComponentNode::set_logger ( logger::Logger &  logger )

inherited

Sets the logger for printing errors and debugging info.

Parameters

logger

the logger to use

Definition at line 53 of file ComponentNode.cpp.

Member Data Documentation

::std::list<ComponentNode *> madara::expression::ListNode::list_

private

list of trees in a parameter list

Definition at line 57 of file ListNode.h.

logger::Logger* madara::expression::ComponentNode::logger_

protectedinherited

handle the context

Definition at line 97 of file ComponentNode.h.

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

• include/madara/expression/ListNode.h
• include/madara/expression/ListNode.cpp