org.apache.calcite.adapter.enumerable

Class RexImpTable.CastOptimizedImplementor

java.lang.Object

org.apache.calcite.adapter.enumerable.RexImpTable.CastOptimizedImplementor

All Implemented Interfaces:

CallImplementor

Enclosing class:

RexImpTable

private static class RexImpTable.CastOptimizedImplementor
extends Object
implements CallImplementor

Implementor for the SQL CAST function that optimizes if, say, the argument is already of the desired type.

Field Summary

Fields

Modifier and Type	Field and Description
private CallImplementor	accurate

Constructor Summary

Constructors

Modifier	Constructor and Description
private	CastOptimizedImplementor()

Method Summary

Modifier and Type	Method and Description
Expression	implement(RexToLixTranslator translator, RexCall call, RexImpTable.NullAs nullAs) Implements a call.

Methods inherited from class java.lang.Object

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

Field Detail

accurate

private final CallImplementor accurate

Constructor Detail

CastOptimizedImplementor

private CastOptimizedImplementor()

Method Detail

implement

public Expression implement(RexToLixTranslator translator,
                            RexCall call,
                            RexImpTable.NullAs nullAs)

Description copied from interface: CallImplementor

Implements a call.

Specified by:

implement in interface CallImplementor

Parameters:

translator - Translator for the call

call - Call that should be implemented

nullAs - The desired mode of null translation

Returns:

Translated call