org.apache.calcite.adapter.elasticsearch

Class MapProjectionFieldVisitor

java.lang.Object

org.apache.calcite.rex.RexVisitorImpl<String>

org.apache.calcite.adapter.elasticsearch.MapProjectionFieldVisitor

All Implemented Interfaces:

RexVisitor<String>

public class MapProjectionFieldVisitor
extends RexVisitorImpl<String>

Visitor that extracts the actual field name from an item expression.

Field Summary

Fields

Modifier and Type	Field and Description
static MapProjectionFieldVisitor	INSTANCE

Fields inherited from class org.apache.calcite.rex.RexVisitorImpl

deep

Constructor Summary

Constructors

Modifier	Constructor and Description
private	MapProjectionFieldVisitor()

Method Summary

Modifier and Type	Method and Description
String	visitCall(RexCall call)

Methods inherited from class org.apache.calcite.rex.RexVisitorImpl

visitArrayAnd, visitArrayOr, visitCorrelVariable, visitDynamicParam, visitFieldAccess, visitInputRef, visitLiteral, visitLocalRef, visitOver, visitPatternFieldRef, visitRangeRef, visitSubQuery, visitTableInputRef

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final MapProjectionFieldVisitor INSTANCE

Constructor Detail

MapProjectionFieldVisitor

private MapProjectionFieldVisitor()

Method Detail

visitCall

public String visitCall(RexCall call)

Specified by:

visitCall in interface RexVisitor<String>

Overrides:

visitCall in class RexVisitorImpl<String>