org.apache.lucene.codecs

Class MultiLevelSkipListReader.SkipBuffer

java.lang.Object

org.apache.lucene.store.DataInput

org.apache.lucene.store.IndexInput

org.apache.lucene.codecs.MultiLevelSkipListReader.SkipBuffer

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, java.lang.Cloneable

Enclosing class:

MultiLevelSkipListReader

private static final class MultiLevelSkipListReader.SkipBuffer
extends IndexInput

used to buffer the top skip levels

Field Summary

Fields

Modifier and Type	Field and Description
private byte[]	data
private long	pointer
private int	pos

Constructor Summary

Constructors

Constructor and Description
SkipBuffer(IndexInput input, int length)

Method Summary

Modifier and Type	Method and Description
void	close() Closes the stream to further operations.
long	getFilePointer() Returns the current position in this file, where the next read will occur.
long	length() The number of bytes in the file.
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	seek(long pos) Sets current position in this file, where the next read will occur.
IndexInput	slice(java.lang.String sliceDescription, long offset, long length) Creates a slice of this index input, with the given description, offset, and length.

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

clone, getFullSliceDescription, randomAccessSlice, toString

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

readBytes, readInt, readLELongs, readLong, readMapOfStrings, readSetOfStrings, readShort, readString, readVInt, readVLong, readZInt, readZLong, skipBytes

Methods inherited from class java.lang.Object

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

Field Detail

data

private byte[] data

pointer

private long pointer

pos

private int pos

Constructor Detail

SkipBuffer

SkipBuffer(IndexInput input,
           int length)
    throws java.io.IOException

Throws:

java.io.IOException

Method Detail

close

public void close()

Description copied from class: IndexInput

Closes the stream to further operations.

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in class IndexInput

getFilePointer

public long getFilePointer()

Description copied from class: IndexInput

Returns the current position in this file, where the next read will occur.

Specified by:

getFilePointer in class IndexInput

See Also:

IndexInput.seek(long)

length

public long length()

Description copied from class: IndexInput

The number of bytes in the file.

Specified by:

length in class IndexInput

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)

seek

public void seek(long pos)

Description copied from class: IndexInput

Sets current position in this file, where the next read will occur. If this is beyond the end of the file then this will throw EOFException and then the stream is in an undetermined state.

Specified by:

seek in class IndexInput

See Also:

IndexInput.getFilePointer()

slice

public IndexInput slice(java.lang.String sliceDescription,
                        long offset,
                        long length)
                 throws java.io.IOException

Description copied from class: IndexInput

Creates a slice of this index input, with the given description, offset, and length. The slice is sought to the beginning.

Specified by:

slice in class IndexInput

Throws:

java.io.IOException