org.apache.calcite.rex

Class RexToSqlNodeConverterImpl

java.lang.Object

org.apache.calcite.rex.RexToSqlNodeConverterImpl

All Implemented Interfaces:

RexToSqlNodeConverter

public class RexToSqlNodeConverterImpl
extends Object
implements RexToSqlNodeConverter

Standard implementation of RexToSqlNodeConverter.

Constructor Summary

Constructors

Constructor and Description
RexToSqlNodeConverterImpl(RexSqlConvertletTable convertletTable)

Method Summary

Modifier and Type	Method and Description
@Nullable SqlNode	convertCall(RexCall call) Converts a RexCall to a SqlNode expression.
@Nullable SqlNode	convertInputRef(RexInputRef ref) Converts a RexInputRef to a SqlIdentifier.
@Nullable SqlNode	convertLiteral(RexLiteral literal) Converts a RexLiteral to a SqlLiteral.
@Nullable SqlNode	convertNode(RexNode node) Converts a RexNode to a SqlNode expression, typically by dispatching to one of the other interface methods.

Methods inherited from class java.lang.Object

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

Constructor Detail

RexToSqlNodeConverterImpl

public RexToSqlNodeConverterImpl(RexSqlConvertletTable convertletTable)

Method Detail

convertNode

public @Nullable SqlNode convertNode(RexNode node)

Description copied from interface: RexToSqlNodeConverter

Converts a RexNode to a SqlNode expression, typically by dispatching to one of the other interface methods.

Specified by:

convertNode in interface RexToSqlNodeConverter

Parameters:

node - RexNode to translate

Returns:

SqlNode, or null if no translation was available

convertCall

public @Nullable SqlNode convertCall(RexCall call)

Description copied from interface: RexToSqlNodeConverter

Converts a RexCall to a SqlNode expression.

Specified by:

convertCall in interface RexToSqlNodeConverter

Parameters:

call - RexCall to translate

Returns:

SqlNode, or null if no translation was available

convertLiteral

public @Nullable SqlNode convertLiteral(RexLiteral literal)

Description copied from interface: RexToSqlNodeConverter

Converts a RexLiteral to a SqlLiteral.

Specified by:

convertLiteral in interface RexToSqlNodeConverter

Parameters:

literal - RexLiteral to translate

Returns:

SqlNode, or null if no translation was available

convertInputRef

public @Nullable SqlNode convertInputRef(RexInputRef ref)

Description copied from interface: RexToSqlNodeConverter

Converts a RexInputRef to a SqlIdentifier.

Specified by:

convertInputRef in interface RexToSqlNodeConverter

Parameters:

ref - RexInputRef to translate

Returns:

SqlNode, or null if no translation was available