Package lemon :: Package external :: Package gadfly :: Module semantics :: Class DescExpr
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Class DescExpr

SimpleRecursive --+        
                  |        
    BoundExpression --+    
                      |    
    SimpleRecursive --+    
                      |    
             BoundMinus --+
                          |
                         DescExpr


special wrapper used only for order by descending
for things with no -thing operation (eg, strings)

Method Summary
  __init__(self, thing)
  __repr__(self)
  orderbind(self, order)
order is list of (att, expr).
  value(self, contexts)
    Inherited from BoundMinus
  domain(self)
  initargs(self)
  relbind(self, dict, db)
  uncache(self)
prepare for execution, clear cached data.
    Inherited from BoundExpression
  __add__(self, other)
  __coerce__(self, other)
  __div__(self, other)
  __mul__(self, other)
  __neg__(self)
  __sub__(self, other)
  attribute(self)
  equate(self, other)
return predicate equating self and other.
  le(self, other)
predicate self<=other...
  lt(self, other)
predicate self<other...
    Inherited from SimpleRecursive
  demarshal(self, args)
  marshaldata(self)

Class Variable Summary
    Inherited from BoundExpression
int contains_aggregate = 0                                                                     

Method Details

orderbind(self, order)

order is list of (att, expr).

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