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TypedExpression< Timestamp > Class Template Reference

#include <Expression.h>

Inherits Expression.

List of all members.


Detailed Description

template<>
class TypedExpression< Timestamp >

An expression that evaluates to a Timestamp value.

Expressions returning a Timestamp should derive from this class and implement the evalImpl(EvalAs<Timestamp>) method.


Public Member Functions

 TypedExpression ()
virtual Timestamp evalImpl (EvalAs< Timestamp >, const EvalContext &ctxt)=0 throw ( EvalException )
 Evaluate as a Timestamp.
bool isImpl (EvalAs< Timestamp >) const
 Returns true iff the expression can be evaluated as a double.


Member Function Documentation

virtual Timestamp TypedExpression< Timestamp >::evalImpl EvalAs< Timestamp ,
const EvalContext ctxt
throw ( EvalException ) [pure virtual]
 

Evaluate as a Timestamp.

Reimplemented from Expression.

bool TypedExpression< Timestamp >::isImpl EvalAs< Timestamp  )  const [virtual]
 

Returns true iff the expression can be evaluated as a double.

Reimplemented from Expression.

TypedExpression< Timestamp >::TypedExpression  ) 
 


The documentation for this class was generated from the following file:
Generated on Fri Nov 12 15:15:24 2004 for Borealis by doxygen 1.3.8