org.apache.paimon.flink

Class ProjectedRowData

java.lang.Object

org.apache.paimon.flink.ProjectedRowData

All Implemented Interfaces:

org.apache.flink.table.data.RowData

public class ProjectedRowData
extends Object
implements org.apache.flink.table.data.RowData

An implementation of RowData which provides a projected view of the underlying RowData.

Projection includes both reducing the accessible fields and reordering them.

Note: This class supports only top-level projections, not nested projections.

Nested Class Summary

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

org.apache.flink.table.data.RowData.FieldGetter

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
static ProjectedRowData	from(int[] projection) Create an empty ProjectedRowData starting from a projection array.
static ProjectedRowData	from(int[][] projection) Like from(int[]), but throws IllegalArgumentException if the provided projection array contains nested projections, which are not supported by ProjectedRowData.
static ProjectedRowData	from(Projection projection) Create an empty ProjectedRowData starting from a Projection.
int	getArity()
org.apache.flink.table.data.ArrayData	getArray(int pos)
byte[]	getBinary(int pos)
boolean	getBoolean(int pos)
byte	getByte(int pos)
org.apache.flink.table.data.DecimalData	getDecimal(int pos, int precision, int scale)
double	getDouble(int pos)
float	getFloat(int pos)
int	getInt(int pos)
long	getLong(int pos)
org.apache.flink.table.data.MapData	getMap(int pos)
<T> org.apache.flink.table.data.RawValueData<T>	getRawValue(int pos)
org.apache.flink.table.data.RowData	getRow(int pos, int numFields)
org.apache.flink.types.RowKind	getRowKind()
short	getShort(int pos)
org.apache.flink.table.data.StringData	getString(int pos)
org.apache.flink.table.data.TimestampData	getTimestamp(int pos, int precision)
int	hashCode()
boolean	isNullAt(int pos)
ProjectedRowData	replaceRow(org.apache.flink.table.data.RowData row) Replaces the underlying RowData backing this ProjectedRowData.
void	setRowKind(org.apache.flink.types.RowKind kind)
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

Method Detail

replaceRow

public ProjectedRowData replaceRow(org.apache.flink.table.data.RowData row)

Replaces the underlying RowData backing this ProjectedRowData.

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

getArity

public int getArity()

Specified by:

getArity in interface org.apache.flink.table.data.RowData

getRowKind

public org.apache.flink.types.RowKind getRowKind()

Specified by:

getRowKind in interface org.apache.flink.table.data.RowData

setRowKind

public void setRowKind(org.apache.flink.types.RowKind kind)

Specified by:

setRowKind in interface org.apache.flink.table.data.RowData

isNullAt

public boolean isNullAt(int pos)

Specified by:

isNullAt in interface org.apache.flink.table.data.RowData

getBoolean

public boolean getBoolean(int pos)

Specified by:

getBoolean in interface org.apache.flink.table.data.RowData

getByte

public byte getByte(int pos)

Specified by:

getByte in interface org.apache.flink.table.data.RowData

getShort

public short getShort(int pos)

Specified by:

getShort in interface org.apache.flink.table.data.RowData

getInt

public int getInt(int pos)

Specified by:

getInt in interface org.apache.flink.table.data.RowData

getLong

public long getLong(int pos)

Specified by:

getLong in interface org.apache.flink.table.data.RowData

getFloat

public float getFloat(int pos)

Specified by:

getFloat in interface org.apache.flink.table.data.RowData

getDouble

public double getDouble(int pos)

Specified by:

getDouble in interface org.apache.flink.table.data.RowData

getString

public org.apache.flink.table.data.StringData getString(int pos)

Specified by:

getString in interface org.apache.flink.table.data.RowData

getDecimal

public org.apache.flink.table.data.DecimalData getDecimal(int pos,
                                                          int precision,
                                                          int scale)

Specified by:

getDecimal in interface org.apache.flink.table.data.RowData

getTimestamp

public org.apache.flink.table.data.TimestampData getTimestamp(int pos,
                                                              int precision)

Specified by:

getTimestamp in interface org.apache.flink.table.data.RowData

getRawValue

public <T> org.apache.flink.table.data.RawValueData<T> getRawValue(int pos)

Specified by:

getRawValue in interface org.apache.flink.table.data.RowData

getBinary

public byte[] getBinary(int pos)

Specified by:

getBinary in interface org.apache.flink.table.data.RowData

getArray

public org.apache.flink.table.data.ArrayData getArray(int pos)

Specified by:

getArray in interface org.apache.flink.table.data.RowData

getMap

public org.apache.flink.table.data.MapData getMap(int pos)

Specified by:

getMap in interface org.apache.flink.table.data.RowData

getRow

public org.apache.flink.table.data.RowData getRow(int pos,
                                                  int numFields)

Specified by:

getRow in interface org.apache.flink.table.data.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 ProjectedRowData from(int[][] projection)
                             throws IllegalArgumentException

Like from(int[]), but throws IllegalArgumentException if the provided projection array contains nested projections, which are not supported by ProjectedRowData.

The array represents the mapping of the fields of the original DataType, including nested rows. For example, [[0, 2, 1], ...] specifies to include the 2nd field of the 3rd field of the 1st field in the top-level row.

Throws:

IllegalArgumentException

See Also:

Projection, ProjectedRowData

from

public static ProjectedRowData from(int[] projection)

Create an empty ProjectedRowData starting from a projection array.

The array represents the mapping of the fields of the original DataType. For example, [0, 2, 1] specifies to include in the following order the 1st field, the 3rd field and the 2nd field of the row.

See Also:

Projection, ProjectedRowData

from

public static ProjectedRowData from(Projection projection)

Create an empty ProjectedRowData starting from a Projection.

Throws IllegalStateException if the provided projection array contains nested projections, which are not supported by ProjectedRowData.

See Also:

Projection, ProjectedRowData