MADARA  3.4.1
CompositeNotNode.h
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1 /* -*- C++ -*- */
2 #ifndef _MADARA_COMPOSITE_NOT_NODE_H_
3 #define _MADARA_COMPOSITE_NOT_NODE_H_
4 
5 #ifndef _MADARA_NO_KARL_
6 
9 
10 namespace madara
11 {
12 namespace expression
13 {
14 class ComponentNode;
15 class Visitor;
16 
23 {
24 public:
31 
35  virtual ~CompositeNotNode(void);
36 
41  virtual madara::knowledge::KnowledgeRecord item(void) const;
42 
48  virtual madara::knowledge::KnowledgeRecord prune(bool& can_change);
49 
57 
62  virtual void accept(Visitor& visitor) const;
63 };
64 }
65 }
66 
67 #endif // _MADARA_NO_KARL_
68 
69 #endif /* _MADARA_COMPOSITE_NOT_NODE_H_ */
An abstract base class defines a simple abstract implementation of an expression tree node.
Definition: ComponentNode.h:37
A composite node that logically nots a right expression.
CompositeNotNode(logger::Logger &logger, ComponentNode *right)
Constructor.
virtual madara::knowledge::KnowledgeRecord item(void) const
Returns the printable character of the node.
virtual void accept(Visitor &visitor) const
Accepts a visitor subclassed from the Visitor class.
virtual ~CompositeNotNode(void)
Destructor.
virtual madara::knowledge::KnowledgeRecord evaluate(const madara::knowledge::KnowledgeUpdateSettings &settings)
Evaluates the node.
virtual madara::knowledge::KnowledgeRecord prune(bool &can_change)
Prunes the expression tree of unnecessary nodes.
Encapsulates a single expression tree.
virtual ComponentNode * right(void) const
Returns the right expression.
Abstract base class for all visitors to all classes that derive from ComponentNode.
Definition: Visitor.h:93
This class encapsulates an entry in a KnowledgeBase.
Settings for applying knowledge updates.
A multi-threaded logger for logging to one or more destinations.
Definition: Logger.h:165
Provides knowledge logging services to files and terminals.
Definition: GlobalLogger.h:12
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