MADARA  3.1.8
CompositeBothNode.h
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1 #ifndef _MADARA_COMPOSITE_BOTH_NODE_H_
2 #define _MADARA_COMPOSITE_BOTH_NODE_H_
3 
4 #ifndef _MADARA_NO_KARL_
5 
6 
9 
10 namespace madara
11 {
12  namespace expression
13  {
14  // Forward declaration.
15  class ComponentNode;
16  class Visitor;
17 
24  {
25  public:
32  const ComponentNodes & nodes);
33 
38  virtual madara::knowledge::KnowledgeRecord item (void) const;
39 
46  virtual madara::knowledge::KnowledgeRecord prune (bool & can_change);
47 
56 
61  virtual void accept (Visitor &visitor) const;
62  };
63  }
64 }
65 
66 
67 #endif // _MADARA_NO_KARL_
68 
69 #endif // _MADARA_COMPOSITE_BOTH_NODE_H_
This class encapsulates an entry in a KnowledgeBase.
virtual madara::knowledge::KnowledgeRecord prune(bool &can_change)
Prunes the expression tree of unnecessary nodes.
CompositeBothNode(logger::Logger &logger, const ComponentNodes &nodes)
Constructor.
virtual void accept(Visitor &visitor) const
Accepts a visitor subclassed from the Visitor class.
virtual madara::knowledge::KnowledgeRecord evaluate(const madara::knowledge::KnowledgeUpdateSettings &settings)
Evaluates the composite node.
std::deque< ComponentNode * > ComponentNodes
a vector of Component Nodes
virtual madara::knowledge::KnowledgeRecord item(void) const
Returns the printable character of the node.
A composite node that evaluates both left and right expressions regardless of their evaluations...
Provides knowledge logging services to files and terminals.
Definition: GlobalLogger.h:11
A multi-threaded logger for logging to one or more destinations.
Definition: Logger.h:88
Abstract base class for all visitors to all classes that derive from ComponentNode.
Definition: Visitor.h:90
Settings for applying knowledge updates.
Copyright (c) 2015 Carnegie Mellon University.