io.greptime.models

Class ArrowHelper

java.lang.Object

io.greptime.models.ArrowHelper

public class ArrowHelper
extends Object

Helper class for Arrow schema creation.

Method Summary

Modifier and Type	Method and Description
static void	addValues(org.apache.arrow.vector.FieldVector vector, int startRowIndex, io.greptime.v1.Common.ColumnDataType dataType, io.greptime.v1.Common.ColumnDataTypeExtension dataTypeExtension, Iterator<Object> values)
static org.apache.arrow.vector.types.pojo.Schema	createSchema(TableSchema tableSchema) Create an Arrow schema from a table schema.
static ArrowCompressionType	getArrowCompressionType(Context ctx) Get the Arrow compression type from the context.

Methods inherited from class java.lang.Object

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

Method Detail

getArrowCompressionType

public static ArrowCompressionType getArrowCompressionType(Context ctx)

Get the Arrow compression type from the context.

Parameters:

ctx - the context

Returns:

the Arrow compression type

createSchema

public static org.apache.arrow.vector.types.pojo.Schema createSchema(TableSchema tableSchema)

Create an Arrow schema from a table schema.

Parameters:

tableSchema - the table schema

Returns:

the Arrow schema

addValues

public static void addValues(org.apache.arrow.vector.FieldVector vector,
                             int startRowIndex,
                             io.greptime.v1.Common.ColumnDataType dataType,
                             io.greptime.v1.Common.ColumnDataTypeExtension dataTypeExtension,
                             Iterator<Object> values)