com.facebook.presto.spi.type

Interface Type

All Known Subinterfaces:

FixedWidthType, VariableWidthType

All Known Implementing Classes:

BigintType, BooleanType, DateType, DoubleType, HyperLogLogType, IntervalDayTimeType, IntervalYearMonthType, TimestampType, TimestampWithTimeZoneType, TimeType, TimeWithTimeZoneType, VarbinaryType, VarcharType

public interface Type

Method Summary

Methods

Modifier and Type	Method and Description
BlockBuilder	createBlockBuilder(BlockBuilderStatus blockBuilderStatus) Creates a block builder for this type.
Class<?>	getJavaType() Gets the Java class type used to represent this value on the stack during expression execution.
String	getName() Gets the name of this type which must be case insensitive globally unique.

Method Detail

getName

String getName()

Gets the name of this type which must be case insensitive globally unique. The name of a user defined type must be a legal identifier in Presto.

getJavaType

Class<?> getJavaType()

Gets the Java class type used to represent this value on the stack during expression execution. This value is used to determine which method should be called on Cursor, RecordSet or RandomAccessBlock to fetch a value of this type. Currently, this must be boolean, long, double, or Slice.

createBlockBuilder

BlockBuilder createBlockBuilder(BlockBuilderStatus blockBuilderStatus)

Creates a block builder for this type. This is the builder used to store values after an expression projection within the query.