org.apache.flink.connector.file.table

Class EnrichedRowData

java.lang.Object

org.apache.flink.connector.file.table.EnrichedRowData

All Implemented Interfaces:

RowData

@Internal
public class EnrichedRowData
extends Object
implements RowData

An implementation of RowData which is backed by two RowData with a well-defined index mapping, One of the rows is fixed, while the other can be swapped for performant changes in hot code paths. The RowKind is inherited from the mutable row.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.table.data.RowData

RowData.FieldGetter

Constructor Summary

Constructors

Constructor and Description
EnrichedRowData(RowData fixedRow, int[] indexMapping)

Method Summary

Modifier and Type	Method and Description
static int[]	computeIndexMapping(List<String> producedRowFields, List<String> mutableRowFields, List<String> fixedRowFields) This method computes the index mapping for EnrichedRowData.
boolean	equals(Object o)
static EnrichedRowData	from(RowData fixedRow, List<String> producedRowFields, List<String> mutableRowFields, List<String> fixedRowFields) Creates a new EnrichedRowData with the provided fixedRow as the immutable static row, and uses the producedRowFields, fixedRowFields and mutableRowFields arguments to compute the indexes mapping.
int	getArity() Returns the number of fields in this row.
ArrayData	getArray(int pos) Returns the array value at the given position.
byte[]	getBinary(int pos) Returns the binary value at the given position.
boolean	getBoolean(int pos) Returns the boolean value at the given position.
byte	getByte(int pos) Returns the byte value at the given position.
DecimalData	getDecimal(int pos, int precision, int scale) Returns the decimal value at the given position.
double	getDouble(int pos) Returns the double value at the given position.
float	getFloat(int pos) Returns the float value at the given position.
int	getInt(int pos) Returns the integer value at the given position.
long	getLong(int pos) Returns the long value at the given position.
MapData	getMap(int pos) Returns the map value at the given position.
<T> RawValueData<T>	getRawValue(int pos) Returns the raw value at the given position.
RowData	getRow(int pos, int numFields) Returns the row value at the given position.
RowKind	getRowKind() Returns the kind of change that this row describes in a changelog.
short	getShort(int pos) Returns the short value at the given position.
StringData	getString(int pos) Returns the string value at the given position.
TimestampData	getTimestamp(int pos, int precision) Returns the timestamp value at the given position.
int	hashCode()
boolean	isNullAt(int pos) Returns true if the field is null at the given position.
EnrichedRowData	replaceMutableRow(RowData mutableRow) Replaces the mutable RowData backing this EnrichedRowData.
void	setRowKind(RowKind kind) Sets the kind of change that this row describes in a changelog.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.flink.table.data.RowData

createFieldGetter

Constructor Detail

EnrichedRowData

public EnrichedRowData(RowData fixedRow,
                       int[] indexMapping)

Method Detail

replaceMutableRow

public EnrichedRowData replaceMutableRow(RowData mutableRow)

Replaces the mutable RowData backing this EnrichedRowData.

This method replaces the mutable row data in place and does not return a new object. This is done for performance reasons.

getArity

public int getArity()

Description copied from interface: RowData

Returns the number of fields in this row.

The number does not include RowKind. It is kept separately.

Specified by:

getArity in interface RowData

getRowKind

public RowKind getRowKind()

Description copied from interface: RowData

Returns the kind of change that this row describes in a changelog.

Specified by:

getRowKind in interface RowData

See Also:

RowKind

setRowKind

public void setRowKind(RowKind kind)

Description copied from interface: RowData

Sets the kind of change that this row describes in a changelog.

Specified by:

setRowKind in interface RowData

See Also:

RowKind

isNullAt

public boolean isNullAt(int pos)

Description copied from interface: RowData

Returns true if the field is null at the given position.

Specified by:

isNullAt in interface RowData

getBoolean

public boolean getBoolean(int pos)

Description copied from interface: RowData

Returns the boolean value at the given position.

Specified by:

getBoolean in interface RowData

getByte

public byte getByte(int pos)

Description copied from interface: RowData

Returns the byte value at the given position.

Specified by:

getByte in interface RowData

getShort

public short getShort(int pos)

Description copied from interface: RowData

Returns the short value at the given position.

Specified by:

getShort in interface RowData

getInt

public int getInt(int pos)

Description copied from interface: RowData

Returns the integer value at the given position.

Specified by:

getInt in interface RowData

getLong

public long getLong(int pos)

Description copied from interface: RowData

Returns the long value at the given position.

Specified by:

getLong in interface RowData

getFloat

public float getFloat(int pos)

Description copied from interface: RowData

Returns the float value at the given position.

Specified by:

getFloat in interface RowData

getDouble

public double getDouble(int pos)

Description copied from interface: RowData

Returns the double value at the given position.

Specified by:

getDouble in interface RowData

getString

public StringData getString(int pos)

Description copied from interface: RowData

Returns the string value at the given position.

Specified by:

getString in interface RowData

getDecimal

public DecimalData getDecimal(int pos,
                              int precision,
                              int scale)

Description copied from interface: RowData

Returns the decimal value at the given position.

The precision and scale are required to determine whether the decimal value was stored in a compact representation (see DecimalData).

Specified by:

getDecimal in interface RowData

getTimestamp

public TimestampData getTimestamp(int pos,
                                  int precision)

Description copied from interface: RowData

Returns the timestamp value at the given position.

The precision is required to determine whether the timestamp value was stored in a compact representation (see TimestampData).

Specified by:

getTimestamp in interface RowData

getRawValue

public <T> RawValueData<T> getRawValue(int pos)

Description copied from interface: RowData

Returns the raw value at the given position.

Specified by:

getRawValue in interface RowData

getBinary

public byte[] getBinary(int pos)

Description copied from interface: RowData

Returns the binary value at the given position.

Specified by:

getBinary in interface RowData

getArray

public ArrayData getArray(int pos)

Description copied from interface: RowData

Returns the array value at the given position.

Specified by:

getArray in interface RowData

getMap

public MapData getMap(int pos)

Description copied from interface: RowData

Returns the map value at the given position.

Specified by:

getMap in interface RowData

getRow

public RowData getRow(int pos,
                      int numFields)

Description copied from interface: RowData

Returns the row value at the given position.

The number of fields is required to correctly extract the row.

Specified by:

getRow in interface RowData

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

from

public static EnrichedRowData from(RowData fixedRow,
                                   List<String> producedRowFields,
                                   List<String> mutableRowFields,
                                   List<String> fixedRowFields)

Creates a new EnrichedRowData with the provided fixedRow as the immutable static row, and uses the producedRowFields, fixedRowFields and mutableRowFields arguments to compute the indexes mapping.

The producedRowFields should include the name of fields of the full row once mutable and fixed rows are merged, while fixedRowFields and mutableRowFields should contain respectively the field names of fixed row and mutable row. All the lists are ordered with indexes matching the position of the field in the row. As an example, for a complete row (a, b, c) the mutable row might be (a, c) and the fixed row might be (b)

computeIndexMapping

public static int[] computeIndexMapping(List<String> producedRowFields,
                                        List<String> mutableRowFields,
                                        List<String> fixedRowFields)

This method computes the index mapping for EnrichedRowData.

See Also:

from(RowData, List, List, List)