org.apache.flink.table.store.utils

类 ProjectedRowData

java.lang.Object

org.apache.flink.table.store.utils.ProjectedRowData

所有已实现的接口:

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.

NOTE: Copied from Flink.

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.table.data.RowData

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

方法概要

限定符和类型	方法和说明
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()

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.table.data.RowData

createFieldGetter

方法详细资料

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()

指定者:

getArity 在接口中 org.apache.flink.table.data.RowData

getRowKind

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

指定者:

getRowKind 在接口中 org.apache.flink.table.data.RowData

setRowKind

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

指定者:

setRowKind 在接口中 org.apache.flink.table.data.RowData

isNullAt

public boolean isNullAt(int pos)

指定者:

isNullAt 在接口中 org.apache.flink.table.data.RowData

getBoolean

public boolean getBoolean(int pos)

指定者:

getBoolean 在接口中 org.apache.flink.table.data.RowData

getByte

public byte getByte(int pos)

指定者:

getByte 在接口中 org.apache.flink.table.data.RowData

getShort

public short getShort(int pos)

指定者:

getShort 在接口中 org.apache.flink.table.data.RowData

getInt

public int getInt(int pos)

指定者:

getInt 在接口中 org.apache.flink.table.data.RowData

getLong

public long getLong(int pos)

指定者:

getLong 在接口中 org.apache.flink.table.data.RowData

getFloat

public float getFloat(int pos)

指定者:

getFloat 在接口中 org.apache.flink.table.data.RowData

getDouble

public double getDouble(int pos)

指定者:

getDouble 在接口中 org.apache.flink.table.data.RowData

getString

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

指定者:

getString 在接口中 org.apache.flink.table.data.RowData

getDecimal

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

指定者:

getDecimal 在接口中 org.apache.flink.table.data.RowData

getTimestamp

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

指定者:

getTimestamp 在接口中 org.apache.flink.table.data.RowData

getRawValue

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

指定者:

getRawValue 在接口中 org.apache.flink.table.data.RowData

getBinary

public byte[] getBinary(int pos)

指定者:

getBinary 在接口中 org.apache.flink.table.data.RowData

getArray

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

指定者:

getArray 在接口中 org.apache.flink.table.data.RowData

getMap

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

指定者:

getMap 在接口中 org.apache.flink.table.data.RowData

getRow

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

指定者:

getRow 在接口中 org.apache.flink.table.data.RowData

equals

public boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

toString

public String toString()

覆盖:

toString 在类中 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.

抛出:

IllegalArgumentException

另请参阅:

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.

另请参阅:

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.

另请参阅:

Projection, ProjectedRowData