org.apache.calcite.adapter.enumerable

Class RexImpTable.MethodNameImplementor

java.lang.Object

org.apache.calcite.adapter.enumerable.RexImpTable.MethodNameImplementor

All Implemented Interfaces:

NotNullImplementor

Direct Known Subclasses:

RexImpTable.FloorImplementor

Enclosing class:

RexImpTable

private static class RexImpTable.MethodNameImplementor
extends Object
implements NotNullImplementor

Implementor for SQL functions that generates calls to a given method name.

Use this, as opposed to RexImpTable.MethodImplementor, if the SQL function is overloaded; then you can use one implementor for several overloads.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	methodName

Constructor Summary

Constructors

Constructor and Description
MethodNameImplementor(String methodName)

Method Summary

Modifier and Type	Method and Description
Expression	implement(RexToLixTranslator translator, RexCall call, List<Expression> translatedOperands) Implements a call with assumption that all the null-checking is implemented by caller.

Methods inherited from class java.lang.Object

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

Field Detail

methodName

protected final String methodName

Constructor Detail

MethodNameImplementor

MethodNameImplementor(String methodName)

Method Detail

implement

public Expression implement(RexToLixTranslator translator,
                            RexCall call,
                            List<Expression> translatedOperands)

Description copied from interface: NotNullImplementor

Implements a call with assumption that all the null-checking is implemented by caller.

Specified by:

implement in interface NotNullImplementor

Parameters:

translator - translator to implement the code

call - call to implement

translatedOperands - arguments of a call

Returns:

expression that implements given call