Package org.apache.arrow.vector.util

Class ReusableByteArray

java.lang.Object

org.apache.arrow.vector.util.ReusableByteArray

All Implemented Interfaces:

ReusableBuffer<byte[]>

Direct Known Subclasses:

Text

public class ReusableByteArray
extends Object
implements ReusableBuffer<byte[]>

A wrapper around byte arrays for repeated writing.

Field Summary

Fields

Modifier and Type	Field	Description
protected byte[]	bytes
protected static final byte[]	EMPTY_BYTES
protected int	length

Constructor Summary

Constructors

Constructor	Description
ReusableByteArray()
ReusableByteArray(byte[] data)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object o)
byte[]	getBuffer()
long	getLength()	Get the number of bytes in the byte array.
int	hashCode()
void	set(byte[] srcBytes, long start, long len)
void	set(ArrowBuf srcBytes, long start, long len)
protected void	setCapacity(int len, boolean keepData)	Sets the capacity of this object to at least len bytes.
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

EMPTY_BYTES

protected static final byte[] EMPTY_BYTES

bytes

protected byte[] bytes

length

protected int length

Constructor Details

ReusableByteArray

public ReusableByteArray()

ReusableByteArray

public ReusableByteArray(byte[] data)

Method Details

getLength

public long getLength()

Get the number of bytes in the byte array.

Specified by:

getLength in interface ReusableBuffer<byte[]>

Returns:

the number of bytes in the byte array

getBuffer

public byte[] getBuffer()

Specified by:

getBuffer in interface ReusableBuffer<byte[]>

set

public void set(ArrowBuf srcBytes,
 long start,
 long len)

Specified by:

set in interface ReusableBuffer<byte[]>

set

public void set(byte[] srcBytes,
 long start,
 long len)

Specified by:

set in interface ReusableBuffer<byte[]>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

setCapacity

protected void setCapacity(int len,
 boolean keepData)

Sets the capacity of this object to at least len bytes. If the current buffer is longer, then the capacity and existing content of the buffer are unchanged. If len is larger than the current capacity, the Text object's capacity is increased to match.

Parameters:

len - the number of bytes we need

keepData - should the old data be kept