Package org.apache.lucene.store

Class ByteArrayDataOutput

java.lang.Object

org.apache.lucene.store.DataOutput

org.apache.lucene.store.ByteArrayDataOutput

public class ByteArrayDataOutput
extends DataOutput

DataOutput backed by a byte array. WARNING: This class omits most low-level checks, so be sure to test heavily with assertions enabled.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

Constructors

Constructor	Description
ByteArrayDataOutput()
ByteArrayDataOutput(byte[] bytes)
ByteArrayDataOutput(byte[] bytes, int offset, int len)

Method Summary

Modifier and Type	Method	Description
int	getPosition()
void	reset(byte[] bytes)
void	reset(byte[] bytes, int offset, int len)
void	writeByte(byte b)	Writes a single byte.
void	writeBytes(byte[] b, int offset, int length)	Writes an array of bytes.
void	writeInt(int i)	Writes an int as four bytes (LE byte order).
void	writeLong(long i)	Writes a long as eight bytes (LE byte order).
void	writeShort(short i)	Writes a short as two bytes (LE byte order).

Methods inherited from class org.apache.lucene.store.DataOutput

copyBytes, writeBytes, writeGroupVInts, writeMapOfStrings, writeSetOfStrings, writeString, writeVInt, writeVLong, writeZInt, writeZLong

Methods inherited from class java.lang.Object

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

Constructor Details

ByteArrayDataOutput

public ByteArrayDataOutput(byte[] bytes)

ByteArrayDataOutput

public ByteArrayDataOutput(byte[] bytes,
 int offset,
 int len)

ByteArrayDataOutput

public ByteArrayDataOutput()

Method Details

reset

public void reset(byte[] bytes)

reset

public void reset(byte[] bytes,
 int offset,
 int len)

getPosition

public int getPosition()

writeByte

public void writeByte(byte b)

Description copied from class: DataOutput

Writes a single byte.

The most primitive data type is an eight-bit byte. Files are accessed as sequences of bytes. All other data types are defined as sequences of bytes, so file formats are byte-order independent.

Specified by:

writeByte in class DataOutput

See Also:

• DataInput.readByte()

writeBytes

public void writeBytes(byte[] b,
 int offset,
 int length)

Description copied from class: DataOutput

Writes an array of bytes.

Specified by:

writeBytes in class DataOutput

Parameters:

b - the bytes to write

offset - the offset in the byte array

length - the number of bytes to write

See Also:

• DataInput.readBytes(byte[],int,int)

writeShort

public void writeShort(short i)

Description copied from class: DataOutput

Writes a short as two bytes (LE byte order).

Overrides:

writeShort in class DataOutput

See Also:

• DataInput.readShort()
• BitUtil.VH_LE_SHORT

writeInt

public void writeInt(int i)

Description copied from class: DataOutput

Writes an int as four bytes (LE byte order).

Overrides:

writeInt in class DataOutput

See Also:

• DataInput.readInt()
• BitUtil.VH_LE_INT

writeLong

public void writeLong(long i)

Description copied from class: DataOutput

Writes a long as eight bytes (LE byte order).

Overrides:

writeLong in class DataOutput

See Also:

• DataInput.readLong()
• BitUtil.VH_LE_LONG