org.apache.lucene.util.encoding

Class IntDecoder

java.lang.Object

org.apache.lucene.util.encoding.IntDecoder

Direct Known Subclasses:

DGapIntDecoder, EightFlagsIntDecoder, FourFlagsIntDecoder, SimpleIntDecoder, VInt8IntDecoder

public abstract class IntDecoder
extends Object

Decodes integers from a set InputStream. For re-usability, the decoder's input stream can be set by (reInit(InputStream)). By design, Decoders are NOT thread-safe.

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

Field Summary

Fields

Modifier and Type	Field and Description
static long	EOS A special long value which is used to indicate end-of-stream has reached.
protected InputStream	in Input stream from which the encoded bytes are read

Constructor Summary

Constructors

Constructor and Description
IntDecoder()

Method Summary

Methods

Modifier and Type	Method and Description
abstract long	decode() Decodes data received from the input stream, and returns one decoded integer.
void	reInit(InputStream in) Sets the input stream from which the encoded data is read.

Methods inherited from class java.lang.Object

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

Field Detail

EOS

public static final long EOS

A special long value which is used to indicate end-of-stream has reached.

See Also:

Constant Field Values

in

protected InputStream in

Input stream from which the encoded bytes are read

Constructor Detail

IntDecoder

public IntDecoder()

Method Detail

reInit

public void reInit(InputStream in)

Sets the input stream from which the encoded data is read.

decode

public abstract long decode()
                     throws IOException

Decodes data received from the input stream, and returns one decoded integer. If end of stream is reached, EOS is returned.

Returns:

one decoded integer as long or EOS if end-of-stream reached.

Throws:

IOException - if an I/O error occurs