## 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
`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
`IntDecoder()`

Method Summary
`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