Module org.apache.lucene.core

Package org.apache.lucene.util.fst

Class GrowableByteArrayDataOutput

java.lang.Object

org.apache.lucene.store.DataOutput

org.apache.lucene.util.fst.GrowableByteArrayDataOutput

All Implemented Interfaces:

Accountable

final class GrowableByteArrayDataOutput
extends DataOutput
implements Accountable

Field Summary

Fields

Modifier and Type	Field	Description
private static final long	BASE_RAM_BYTES_USED
private byte[]	bytes
private static final int	INITIAL_SIZE
private int	nextWrite

Fields inherited from interface org.apache.lucene.util.Accountable

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Constructor	Description
GrowableByteArrayDataOutput()

Method Summary

Modifier and Type	Method	Description
private void	ensureCapacity(int capacityToWrite)	Ensure we can write additional capacityToWrite bytes.
byte[]	getBytes()
int	getPosition()
long	ramBytesUsed()	Return the memory usage of this object in bytes.
void	setPosition(int newLen)	Set the position of the byte[], increasing the capacity if needed
void	writeByte(byte b)	Writes a single byte.
void	writeBytes(byte[] b, int offset, int len)	Writes an array of bytes.
void	writeTo(int srcOffset, byte[] dest, int destOffset, int len)	Copies bytes from this store to a target byte array.
void	writeTo(DataOutput out)	Writes all of our bytes to the target DataOutput.

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

copyBytes, writeBytes, writeGroupVInts, writeInt, writeLong, writeMapOfStrings, writeSetOfStrings, writeShort, writeString, writeVInt, writeVLong, writeZInt, writeZLong

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources

Field Details

BASE_RAM_BYTES_USED

private static final long BASE_RAM_BYTES_USED

INITIAL_SIZE

private static final int INITIAL_SIZE

See Also:

• Constant Field Values

bytes

private byte[] bytes

nextWrite

private int nextWrite

Constructor Details

GrowableByteArrayDataOutput

GrowableByteArrayDataOutput()

Method Details

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 len)

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

len - the number of bytes to write

See Also:

• DataInput.readBytes(byte[],int,int)

getPosition

public int getPosition()

getBytes

public byte[] getBytes()

setPosition

public void setPosition(int newLen)

Set the position of the byte[], increasing the capacity if needed

ensureCapacity

private void ensureCapacity(int capacityToWrite)

Ensure we can write additional capacityToWrite bytes.

Parameters:

capacityToWrite - the additional bytes to write

writeTo

public void writeTo(DataOutput out)
             throws IOException

Writes all of our bytes to the target DataOutput.

Throws:

IOException

writeTo

public void writeTo(int srcOffset,
 byte[] dest,
 int destOffset,
 int len)

Copies bytes from this store to a target byte array.

ramBytesUsed

public long ramBytesUsed()

Description copied from interface: Accountable

Return the memory usage of this object in bytes. Negative values are illegal.

Specified by:

ramBytesUsed in interface Accountable