Package org.gridgain.internal.sql.copy.parquet

Class ParquetGroupUtils

java.lang.Object

org.gridgain.internal.sql.copy.parquet.ParquetGroupUtils

public class ParquetGroupUtils
extends Object

Utility class for mapping parquet types to java objects.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DECIMAL_PRECISION	Default decimal precision.
static final int	DECIMAL_SCALE	Default decimal scale.

Constructor Summary

Constructors

Constructor	Description
ParquetGroupUtils()

Method Summary

Modifier and Type	Method	Description
static @Nullable Object	getValueFromGroup(org.apache.parquet.schema.Type columnType, ObjectGroup group, int index)	Returns the java object based on provided parquet type.
static void	putValueToGroup(org.apache.parquet.example.data.Group group, String columnName, Object value)	Puts the java object to the parquet group.

Methods inherited from class java.lang.Object

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

Field Details

DECIMAL_PRECISION

public static final int DECIMAL_PRECISION

Default decimal precision. GG column meta provides fixed default precision 65535 while parquet must be 38 or less.

See Also:

• Constant Field Values

DECIMAL_SCALE

public static final int DECIMAL_SCALE

Default decimal scale. GG column meta provides fixed default scale 32767 while parquet must be 38 or less.

See Also:

• Constant Field Values

Constructor Details

ParquetGroupUtils

public ParquetGroupUtils()

Method Details

getValueFromGroup

@Nullable
public static @Nullable Object getValueFromGroup(org.apache.parquet.schema.Type columnType,
 ObjectGroup group,
 int index)

Returns the java object based on provided parquet type.

Parameters:

columnType - Parquet column type.

group - Object that contains parquet row value.

index - Index of the value in the group.

putValueToGroup

public static void putValueToGroup(org.apache.parquet.example.data.Group group,
 String columnName,
 Object value)

Puts the java object to the parquet group.

Parameters:

group - Object that contains parquet row value.

columnName - Name of the column.

value - Java object to put.