org.apache.calcite.rel.externalize

Class RelJson

java.lang.Object

org.apache.calcite.rel.externalize.RelJson

public class RelJson
extends Object

Utilities for converting RelNode into JSON format.

Field Summary

Fields

Modifier and Type	Field and Description
private Map<String,Constructor>	constructorMap
private JsonBuilder	jsonBuilder
static List<String>	PACKAGES

Constructor Summary

Constructors

Constructor and Description
RelJson(JsonBuilder jsonBuilder)

Method Summary

Modifier and Type	Method and Description
String	classToTypeName(Class<? extends RelNode> class_) Inverse of typeNameToClass(java.lang.String).
RelNode	create(Map<String,Object> map)
Constructor	getConstructor(String type)
(package private) SqlAggFunction	toAggregation(String agg, Map<String,Object> map)
RelCollation	toCollation(List<Map<String,Object>> jsonFieldCollations)
RelDistribution	toDistribution(Object o)
RelFieldCollation	toFieldCollation(Map<String,Object> map)
Object	toJson(AggregateCall node)
private Object	toJson(CorrelationId node)
(package private) Object	toJson(Object value)
Object	toJson(RelCollationImpl node)
private Object	toJson(RelDataType node)
private Object	toJson(RelDataTypeField node)
private Object	toJson(RexNode node)
private String	toJson(SqlOperator operator)
private SqlOperator	toOp(String op, Map<String,Object> map)
(package private) RexNode	toRex(RelInput relInput, Object o)
private List<RexNode>	toRexList(RelInput relInput, List operands)
RelDataType	toType(RelDataTypeFactory typeFactory, Object o)
Class	typeNameToClass(String type) Converts a type name to a class.

Methods inherited from class java.lang.Object

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

Field Detail

constructorMap

private final Map<String,Constructor> constructorMap

jsonBuilder

private final JsonBuilder jsonBuilder

PACKAGES

public static final List<String> PACKAGES

Constructor Detail

RelJson

public RelJson(JsonBuilder jsonBuilder)

Method Detail

create

public RelNode create(Map<String,Object> map)

getConstructor

public Constructor getConstructor(String type)

typeNameToClass

public Class typeNameToClass(String type)

Converts a type name to a class. E.g. getClass("LogicalProject") returns LogicalProject.class.

classToTypeName

public String classToTypeName(Class<? extends RelNode> class_)

Inverse of typeNameToClass(java.lang.String).

toJson

public Object toJson(RelCollationImpl node)

toCollation

public RelCollation toCollation(List<Map<String,Object>> jsonFieldCollations)

toFieldCollation

public RelFieldCollation toFieldCollation(Map<String,Object> map)

toDistribution

public RelDistribution toDistribution(Object o)

toType

public RelDataType toType(RelDataTypeFactory typeFactory,
                          Object o)

toJson

public Object toJson(AggregateCall node)

toJson

Object toJson(Object value)

toJson

private Object toJson(RelDataType node)

toJson

private Object toJson(RelDataTypeField node)

toJson

private Object toJson(CorrelationId node)

toJson

private Object toJson(RexNode node)

toRex

RexNode toRex(RelInput relInput,
              Object o)

toRexList

private List<RexNode> toRexList(RelInput relInput,
                                List operands)

toOp

private SqlOperator toOp(String op,
                         Map<String,Object> map)

toAggregation

SqlAggFunction toAggregation(String agg,
                             Map<String,Object> map)

toJson

private String toJson(SqlOperator operator)