org.apache.flink.table.data.vector

类 VectorizedColumnBatch

java.lang.Object

org.apache.flink.table.data.vector.VectorizedColumnBatch

所有已实现的接口:

Serializable

public class VectorizedColumnBatch
extends Object
implements Serializable

A VectorizedColumnBatch is a set of rows, organized with each column as a vector. It is the unit of query execution, organized to minimize the cost per row.

VectorizedColumnBatchs are influenced by Apache Hive VectorizedRowBatch.

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
ColumnVector[]	columns
static int	DEFAULT_SIZE This number is carefully chosen to minimize overhead and typically allows one VectorizedColumnBatch to fit in cache.

构造器概要

构造器

构造器和说明
VectorizedColumnBatch(ColumnVector[] vectors)

方法概要

限定符和类型	方法和说明
int	getArity()
org.apache.flink.table.data.ArrayData	getArray(int rowId, int colId)
boolean	getBoolean(int rowId, int colId)
byte	getByte(int rowId, int colId)
BytesColumnVector.Bytes	getByteArray(int rowId, int colId)
org.apache.flink.table.data.DecimalData	getDecimal(int rowId, int colId, int precision, int scale)
double	getDouble(int rowId, int colId)
float	getFloat(int rowId, int colId)
int	getInt(int rowId, int colId)
long	getLong(int rowId, int colId)
int	getNumRows()
org.apache.flink.table.data.RowData	getRow(int rowId, int colId)
short	getShort(int rowId, int colId)
String	getString(int rowId, int colId)
org.apache.flink.table.data.TimestampData	getTimestamp(int rowId, int colId, int precision)
boolean	isNullAt(int rowId, int colId)
void	setNumRows(int numRows)

从类继承的方法 java.lang.Object

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

字段详细资料

DEFAULT_SIZE

public static final int DEFAULT_SIZE

This number is carefully chosen to minimize overhead and typically allows one VectorizedColumnBatch to fit in cache.

另请参阅:

常量字段值

columns

public final ColumnVector[] columns

构造器详细资料

VectorizedColumnBatch

public VectorizedColumnBatch(ColumnVector[] vectors)

方法详细资料

setNumRows

public void setNumRows(int numRows)

getNumRows

public int getNumRows()

getArity

public int getArity()

isNullAt

public boolean isNullAt(int rowId,
                        int colId)

getBoolean

public boolean getBoolean(int rowId,
                          int colId)

getByte

public byte getByte(int rowId,
                    int colId)

getShort

public short getShort(int rowId,
                      int colId)

getInt

public int getInt(int rowId,
                  int colId)

getLong

public long getLong(int rowId,
                    int colId)

getFloat

public float getFloat(int rowId,
                      int colId)

getDouble

public double getDouble(int rowId,
                        int colId)

getByteArray

public BytesColumnVector.Bytes getByteArray(int rowId,
                                            int colId)

getString

public String getString(int rowId,
                        int colId)

getDecimal

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

getTimestamp

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

getArray

public org.apache.flink.table.data.ArrayData getArray(int rowId,
                                                      int colId)

getRow

public org.apache.flink.table.data.RowData getRow(int rowId,
                                                  int colId)