Module org.apache.lucene.core

Package org.apache.lucene.util

Class PagedBytes.PagedBytesDataInput

java.lang.Object

org.apache.lucene.store.DataInput

org.apache.lucene.util.PagedBytes.PagedBytesDataInput

All Implemented Interfaces:

Cloneable

Enclosing class:

PagedBytes

public final class PagedBytes.PagedBytesDataInput
extends DataInput

Input that transparently iterates over pages

Field Summary

Fields

Modifier and Type	Field	Description
private byte[]	currentBlock
private int	currentBlockIndex
private int	currentBlockUpto

Constructor Summary

Constructors

Constructor	Description
PagedBytesDataInput()

Method Summary

Modifier and Type	Method	Description
PagedBytes.PagedBytesDataInput	clone()	Returns a clone of this stream.
long	getPosition()	Returns the current byte position.
private void	nextBlock()
byte	readByte()	Reads and returns a single byte.
void	readBytes(byte[] b, int offset, int len)	Reads a specified number of bytes into an array at the specified offset.
void	setPosition(long pos)	Seek to a position previously obtained from getPosition().
void	skipBytes(long numBytes)	Skip over numBytes bytes.

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

readBytes, readFloats, readGroupVInt, readGroupVInts, readInt, readInts, readLong, readLongs, readMapOfStrings, readSetOfStrings, readShort, readString, readVInt, readVLong, readZInt, readZLong

Methods inherited from class java.lang.Object

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

Field Details

currentBlockIndex

private int currentBlockIndex

currentBlockUpto

private int currentBlockUpto

currentBlock

private byte[] currentBlock

Constructor Details

PagedBytesDataInput

PagedBytesDataInput()

Method Details

clone

public PagedBytes.PagedBytesDataInput clone()

Description copied from class: DataInput

Returns a clone of this stream.

Clones of a stream access the same data, and are positioned at the same point as the stream they were cloned from.

Expert: Subclasses must ensure that clones may be positioned at different points in the input from each other and from the stream they were cloned from.

Overrides:

clone in class DataInput

getPosition

public long getPosition()

Returns the current byte position.

setPosition

public void setPosition(long pos)

Seek to a position previously obtained from getPosition().

readByte

public byte readByte()

Description copied from class: DataInput

Reads and returns a single byte.

Specified by:

readByte in class DataInput

See Also:

• DataOutput.writeByte(byte)

readBytes

public void readBytes(byte[] b,
 int offset,
 int len)

Description copied from class: DataInput

Reads a specified number of bytes into an array at the specified offset.

Specified by:

readBytes in class DataInput

Parameters:

b - the array to read bytes into

offset - the offset in the array to start storing bytes

len - the number of bytes to read

See Also:

• DataOutput.writeBytes(byte[],int)

skipBytes

public void skipBytes(long numBytes)

Description copied from class: DataInput

Skip over numBytes bytes. This method may skip bytes in whatever way is most optimal, and may not have the same behavior as reading the skipped bytes. In general, negative numBytes are not supported.

Specified by:

skipBytes in class DataInput

nextBlock

private void nextBlock()