Package org.apache.flink.table.data.columnar.vector.writable

Class AbstractWritableVector

java.lang.Object

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

All Implemented Interfaces:

Serializable, ColumnVector, WritableColumnVector

Direct Known Subclasses:

AbstractHeapVector

@Internal
public abstract class AbstractWritableVector
extends Object
implements WritableColumnVector, Serializable

Contains the shared structure for ColumnVectors, including NULL information and dictionary. NOTE: if there are some nulls, must set noNulls to false.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Dictionary	dictionary	The Dictionary for this column.
protected boolean	noNulls

Constructor Summary

Constructors

Constructor	Description
AbstractWritableVector()

Method Summary

Modifier and Type	Method	Description
boolean	hasDictionary()	Returns true if this column has a dictionary.
void	setDictionary(Dictionary dictionary)	Update the dictionary.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.data.columnar.vector.ColumnVector

isNullAt

Methods inherited from interface org.apache.flink.table.data.columnar.vector.writable.WritableColumnVector

fillWithNulls, getDictionaryIds, reserveDictionaryIds, reset, setNullAt, setNulls

Field Details

noNulls

protected boolean noNulls

dictionary

protected Dictionary dictionary

The Dictionary for this column. If it's not null, will be used to decode the value in get().

Constructor Details

AbstractWritableVector

public AbstractWritableVector()

Method Details

setDictionary

public void setDictionary(Dictionary dictionary)

Update the dictionary.

Specified by:

setDictionary in interface WritableColumnVector

hasDictionary

public boolean hasDictionary()

Returns true if this column has a dictionary.

Specified by:

hasDictionary in interface WritableColumnVector