Defines a node that contains a madara::knowledge::KnowledgeRecord::Integer value. More...

#include <LeafNode.h>

Inheritance diagram for madara::expression::LeafNode:

Public Member Functions
	LeafNode (logger::Logger &logger, const knowledge::KnowledgeRecord &item)
	Constructor. More...

	LeafNode (logger::Logger &logger, madara::knowledge::KnowledgeRecord::Integer item)
	Integer Constructor. More...

	LeafNode (logger::Logger &logger, double item)
	Double Constructor. More...

	LeafNode (logger::Logger &logger, const std::string &item)
	String Constructor. More...

virtual	~LeafNode (void)
	Destructor. More...

virtual void	accept (Visitor &visitor) const
	Accepts a visitor subclassed from the Visitor class. More...

virtual madara::knowledge::KnowledgeRecord	evaluate (const madara::knowledge::KnowledgeUpdateSettings &settings)
	Evaluates the expression tree. More...

virtual madara::knowledge::KnowledgeRecord	item (void) const
	Returns the printable value of the node. More...

virtual ComponentNode *	left (void) const
	Returns the left expression. More...

virtual madara::knowledge::KnowledgeRecord	prune (bool &can_change)
	Prunes the expression 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
madara::knowledge::KnowledgeRecord	item_
	Integer value associated with the operand. More...

Detailed Description

Defines a node that contains a madara::knowledge::KnowledgeRecord::Integer value.

Definition at line 23 of file LeafNode.h.

Constructor & Destructor Documentation

madara::expression::LeafNode::LeafNode	(	logger::Logger &	logger,
		const knowledge::KnowledgeRecord &	item
	)

Constructor.

Parameters

logger	the logger to use for printing
item	value of the node

Definition at line 16 of file LeafNode.cpp.

madara::expression::LeafNode::LeafNode	(	logger::Logger &	logger,
		madara::knowledge::KnowledgeRecord::Integer	item
	)

Integer Constructor.

Parameters

logger	the logger to use for printing
item	value of the node

Definition at line 23 of file LeafNode.cpp.

madara::expression::LeafNode::LeafNode	(	logger::Logger &	logger,
		double	item
	)

Double Constructor.

Parameters

logger	the logger to use for printing
item	value of the node

Definition at line 39 of file LeafNode.cpp.

madara::expression::LeafNode::LeafNode	(	logger::Logger &	logger,
		const std::string &	item
	)

String Constructor.

Parameters

logger	the logger to use for printing
item	value of the node

Definition at line 31 of file LeafNode.cpp.

madara::expression::LeafNode::~LeafNode ( void )

virtual

Destructor.

Definition at line 47 of file LeafNode.cpp.

Member Function Documentation

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

virtual

Accepts a visitor subclassed from the Visitor class.

Parameters

visitor visitor instance to use

Reimplemented from madara::expression::ComponentNode.

Definition at line 85 of file LeafNode.cpp.

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

virtual

Evaluates the expression tree.

Evaluates the node and its children.

Returns: value of this node

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

Implements madara::expression::ComponentNode.

Definition at line 75 of file LeafNode.cpp.

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

virtual

Returns the printable value of the node.

Returns: value of the node

Reimplemented from madara::expression::ComponentNode.

Definition at line 53 of file LeafNode.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::LeafNode::prune ( bool & can_change )

virtual

Prunes the expression tree of unnecessary nodes.

Prune the tree of unnecessary nodes.

Parameters

can_change set to true if variable nodes are contained

Returns: value of this node

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 63 of file LeafNode.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

madara::knowledge::KnowledgeRecord madara::expression::LeafNode::item_

private

Integer value associated with the operand.

Definition at line 91 of file LeafNode.h.

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

protectedinherited

handle the context

Definition at line 97 of file ComponentNode.h.

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

include/madara/expression/LeafNode.h
include/madara/expression/LeafNode.cpp

Public Member Functions

Protected Attributes

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation