org.apache.xindice.core.meta.inline
Class NullReader

java.lang.Object
  org.apache.xindice.core.meta.inline.NullReader

All Implemented Interfaces:

InlineMetaReader

public class NullReader

extends Object

implements InlineMetaReader

Read metadata of length zero. Handy for comparing performance of the metadata-free database with a database using the metadata machinery but containing no metadata.

Version:

$Revision: 541508 $, $Date: 2007-05-24 21:54:12 -0400 (Thu, 24 May 2007) $

Nested Class Summary

static class

NullReader.NullMap A VERY simple and efficient InlineMetaMap implementation that holds precisely nothing.

Constructor Summary

NullReader()

Method Summary

int	getVersion() The second byte of the header contains the version.
InlineMetaMap	read(Value data) When a header is read, it generates a Map containing the attributes carried by the header.

Methods inherited from class java.lang.Object

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

Constructor Detail

NullReader

public NullReader()

Method Detail

getVersion

public int getVersion()

Description copied from interface: InlineMetaReader

The second byte of the header contains the version. The reader which is called to read the header is determined by the version.

Specified by:

getVersion in interface InlineMetaReader

See Also:

InlineMetaReader.getVersion()

read

public InlineMetaMap read(Value data)
                   throws InlineMetaException

Description copied from interface: InlineMetaReader

When a header is read, it generates a Map containing the attributes carried by the header.

Specified by:

read in interface InlineMetaReader

Parameters:

data - Value object in which the header is embedded

Returns:

Map containing the attributes read from the header

Throws:

InlineMetaException - if the header data is corrupted or of the wrong length

See Also:

InlineMetaReader.read(Value)