com.facebook.presto.operator.scalar

Class MapToJsonCast

java.lang.Object

com.facebook.presto.metadata.BuiltInFunction

com.facebook.presto.metadata.SqlScalarFunction

com.facebook.presto.metadata.SqlOperator

com.facebook.presto.operator.scalar.MapToJsonCast

All Implemented Interfaces:

SqlFunction

public class MapToJsonCast
extends SqlOperator

Field Summary

Fields

Modifier and Type	Field and Description
static MapToJsonCast	MAP_TO_JSON

Method Summary

Modifier and Type	Method and Description
BuiltInScalarFunctionImplementation	specialize(BoundVariables boundVariables, int arity, FunctionAndTypeManager functionAndTypeManager)
static io.airlift.slice.Slice	toJson(JsonUtil.ObjectKeyProvider provider, JsonUtil.JsonGeneratorWriter writer, SqlFunctionProperties properties, Block block)

Methods inherited from class com.facebook.presto.metadata.SqlOperator

getDescription, getVisibility, isCalledOnNullInput, isDeterministic

Methods inherited from class com.facebook.presto.metadata.SqlScalarFunction

builder, builder, getSignature

Methods inherited from class java.lang.Object

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

Field Detail

MAP_TO_JSON

public static final MapToJsonCast MAP_TO_JSON

Method Detail

specialize

public BuiltInScalarFunctionImplementation specialize(BoundVariables boundVariables,
                                                      int arity,
                                                      FunctionAndTypeManager functionAndTypeManager)

Specified by:

specialize in class SqlScalarFunction

toJson

public static io.airlift.slice.Slice toJson(JsonUtil.ObjectKeyProvider provider,
                                            JsonUtil.JsonGeneratorWriter writer,
                                            SqlFunctionProperties properties,
                                            Block block)