org.apache.flink.table.data.vector.heap

类 AbstractHeapVector

java.lang.Object

org.apache.flink.table.data.vector.writable.AbstractWritableVector

org.apache.flink.table.data.vector.heap.AbstractHeapVector

所有已实现的接口:

Serializable, ColumnVector, WritableColumnVector

直接已知子类:

HeapBooleanVector, HeapBytesVector, HeapByteVector, HeapDoubleVector, HeapFloatVector, HeapIntVector, HeapLongVector, HeapShortVector, HeapTimestampVector

public abstract class AbstractHeapVector
extends AbstractWritableVector

Heap vector that nullable shared structure.

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
static int	BYTE_ARRAY_OFFSET
protected HeapIntVector	dictionaryIds Reusable column for ids of dictionary.
static int	DOUBLE_ARRAY_OFFSET
static int	FLOAT_ARRAY_OFFSET
static int	INT_ARRAY_OFFSET
protected boolean[]	isNull
static boolean	LITTLE_ENDIAN
static int	LONG_ARRAY_OFFSET
static sun.misc.Unsafe	UNSAFE

从类继承的字段 org.apache.flink.table.data.vector.writable.AbstractWritableVector

dictionary, noNulls

构造器概要

构造器

构造器和说明
AbstractHeapVector(int len)

方法概要

限定符和类型	方法和说明
void	fillWithNulls() Fill the column vector with nulls.
HeapIntVector	getDictionaryIds() Returns the underlying integer column for ids of dictionary.
boolean	isNullAt(int i)
HeapIntVector	reserveDictionaryIds(int capacity) Reserve a integer column for ids of dictionary.
void	reset() Resets the column to default state
void	setNullAt(int i) Set null at rowId.
void	setNulls(int i, int count) Set nulls from rowId to rowId + count (exclude).

从类继承的方法 org.apache.flink.table.data.vector.writable.AbstractWritableVector

hasDictionary, setDictionary

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

LITTLE_ENDIAN

public static final boolean LITTLE_ENDIAN

UNSAFE

public static final sun.misc.Unsafe UNSAFE

BYTE_ARRAY_OFFSET

public static final int BYTE_ARRAY_OFFSET

INT_ARRAY_OFFSET

public static final int INT_ARRAY_OFFSET

LONG_ARRAY_OFFSET

public static final int LONG_ARRAY_OFFSET

FLOAT_ARRAY_OFFSET

public static final int FLOAT_ARRAY_OFFSET

DOUBLE_ARRAY_OFFSET

public static final int DOUBLE_ARRAY_OFFSET

isNull

protected boolean[] isNull

dictionaryIds

protected HeapIntVector dictionaryIds

Reusable column for ids of dictionary.

构造器详细资料

AbstractHeapVector

public AbstractHeapVector(int len)

方法详细资料

reset

public void reset()

Resets the column to default state. - fills the isNull array with false. - sets noNulls to true.

setNullAt

public void setNullAt(int i)

从接口复制的说明: WritableColumnVector

Set null at rowId.

setNulls

public void setNulls(int i,
                     int count)

从接口复制的说明: WritableColumnVector

Set nulls from rowId to rowId + count (exclude).

fillWithNulls

public void fillWithNulls()

从接口复制的说明: WritableColumnVector

Fill the column vector with nulls.

isNullAt

public boolean isNullAt(int i)

reserveDictionaryIds

public HeapIntVector reserveDictionaryIds(int capacity)

从接口复制的说明: WritableColumnVector

Reserve a integer column for ids of dictionary. The size of return WritableIntVector should be equal to or bigger than capacity. DictionaryIds must inconsistent with WritableColumnVector.setDictionary(org.apache.flink.table.data.vector.Dictionary). We don't support a mix of dictionary.

getDictionaryIds

public HeapIntVector getDictionaryIds()

Returns the underlying integer column for ids of dictionary.