class AttributeBase : public RCObject

(Return to index)

Abstract base class for attribute values of different types.

Type:	Abstract
Superclasses:	public RCObject
Include file:	./AbstractObjects/AttributeBase.hh

Inheritance

Synopsis (including inherited members):

• Public members:
  • AttributeBase () ;
  • virtual ~AttributeBase () ;
  • virtual AttributeBase* clone ()const = 0 ;
  • string getImage ()const ;
  • virtual bool isExpression ()const ;
  • virtual std::ostream& print (std::ostream&)const = 0 ;
  • virtual void invalidate () ;

Documentation:

• Public members:

  virtual AttributeBase* clone ()const = 0 ;

  Make clone.
  Construct an exact copy of the value.

  string getImage ()const ;

  Convert to string.
  Uses print() to convert the input expression for the attribute to a printable representation.

  virtual void invalidate () ;

  Force re-evaluation.
  Set an internal flag so as to force re-evaluation of any expression when the value is referred next time.

  virtual bool isExpression ()const ;

  Test for expression.
  Return true if the value is an expression.

  virtual std::ostream& print (std::ostream&)const = 0 ;

  Print value.
  Print the value on the given output stream. The result allows reconstruction of any expression.