org.apache.arrow.vector

Class BitVector.Accessor

java.lang.Object

org.apache.arrow.vector.BaseValueVector.BaseAccessor

org.apache.arrow.vector.BitVector.Accessor

All Implemented Interfaces:

ValueVector.Accessor

Enclosing class:

BitVector

public class BitVector.Accessor
extends BaseValueVector.BaseAccessor

Constructor Summary

Constructors

Constructor and Description
Accessor()

Method Summary

Modifier and Type	Method and Description
int	get(int index) Get the byte holding the desired bit, then mask all other bits.
void	get(int index, BitHolder holder)
void	get(int index, NullableBitHolder holder)
int	getNullCount() Get the number nulls, this correspond to the number of bits set to 0 in the vector
Boolean	getObject(int index) Get the Java Object representation of the element at the specified position.
int	getValueCount()
boolean	isNull(int index)

Methods inherited from class java.lang.Object

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

Constructor Detail

Accessor

public Accessor()

Method Detail

get

public final int get(int index)

Get the byte holding the desired bit, then mask all other bits. Iff the result is 0, the bit was not set.

Parameters:

index - position of the bit in the vector

Returns:

1 if set, otherwise 0

isNull

public boolean isNull(int index)

Specified by:

isNull in interface ValueVector.Accessor

Overrides:

isNull in class BaseValueVector.BaseAccessor

Parameters:

index - the index to check for nullity

Returns:

true if the value at the given index is null, false otherwise.

getObject

public final Boolean getObject(int index)

Description copied from interface: ValueVector.Accessor

Get the Java Object representation of the element at the specified position. Useful for testing.

Parameters:

index - Index of the value to get

Returns:

the friendly java type

getValueCount

public final int getValueCount()

Returns:

the number of values that is stored in this vector.

get

public final void get(int index,
                      BitHolder holder)

get

public final void get(int index,
                      NullableBitHolder holder)

getNullCount

public final int getNullCount()

Get the number nulls, this correspond to the number of bits set to 0 in the vector

Specified by:

getNullCount in interface ValueVector.Accessor

Overrides:

getNullCount in class BaseValueVector.BaseAccessor

Returns:

the number of bits set to 0