org.apache.calcite.adapter.enumerable

Class RexImpTable.CaseImplementor

java.lang.Object

org.apache.calcite.adapter.enumerable.RexImpTable.CaseImplementor

All Implemented Interfaces:

CallImplementor

Enclosing class:

RexImpTable

private static class RexImpTable.CaseImplementor
extends Object
implements CallImplementor

Implementor for the SQL CASE operator.

Constructor Summary

Constructors

Modifier	Constructor and Description
private	CaseImplementor()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

CaseImplementor

private CaseImplementor()

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

implementRecurse

private Expression implementRecurse(RexToLixTranslator translator,
                                    RexCall call,
                                    RexImpTable.NullAs nullAs,
                                    int i)