net.sf.farrago.fennel.calc
Class CalcRexImplementorTableImpl.DatetimeRoundingImplementor

java.lang.Object
  net.sf.farrago.fennel.calc.CalcRexImplementorTableImpl.AbstractCalcRexImplementor
      net.sf.farrago.fennel.calc.CalcRexImplementorTableImpl.DatetimeRoundingImplementor

All Implemented Interfaces:

CalcRexImplementor

Enclosing class:

CalcRexImplementorTableImpl

private static class CalcRexImplementorTableImpl.DatetimeRoundingImplementor
extends CalcRexImplementorTableImpl.AbstractCalcRexImplementor

Helper to implement CAST to TIMESTAMP or TIME values. The supplied implementor does the hard part, then this implementor ensures that the result is rounded to the correct precision.

Field Summary

private CalcRexImplementor

implementor

Constructor Summary

CalcRexImplementorTableImpl.DatetimeRoundingImplementor(CalcRexImplementor implementor)

Method Summary

CalcReg

implement(RexCall call, RexToCalcTranslator translator) Generates instructions to implement this call, and returns the register which holds the result.

Methods inherited from class net.sf.farrago.fennel.calc.CalcRexImplementorTableImpl.AbstractCalcRexImplementor

canImplement

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

implementor

private final CalcRexImplementor implementor

Constructor Detail

CalcRexImplementorTableImpl.DatetimeRoundingImplementor

CalcRexImplementorTableImpl.DatetimeRoundingImplementor(CalcRexImplementor implementor)

Method Detail

implement

public CalcReg implement(RexCall call,
                         RexToCalcTranslator translator)

Description copied from interface: CalcRexImplementor

Generates instructions to implement this call, and returns the register which holds the result.