gov.nist.nlpir.irf.indexer
Class Indexer

java.lang.Object
  |
  +--gov.nist.nlpir.irf.indexer.Indexer

Direct Known Subclasses:

UniversalIndexer

public abstract class Indexer

extends java.lang.Object

implements java.io.Serializable

The topmost abstract class for all indexer classes.

Version:

$Revision: 1.2 $

Author:

This software was produced by NIST, an agency of the U.S. government, and by statute is not subject to copyright in the United States. Recipients of this software assume all responsibilities associated with its operation, modification and maintenance.

See Also:

Serialized Form

Field Summary

(package private) static long

serialVersionUID serial version universal id - put here so Java does not insert one which may change due to revisions and make it impossible to deserialize earlier versions of serialized objects

Constructor Summary

Indexer()

Method Summary

abstract java.util.Vector

getIndexingFeatures(DataElem de, ProxyDocument source) All indexer classes must implement this method to return the indexing features that were extracted from specified data element and document at indexing time.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

static final long serialVersionUID

serial version universal id - put here so Java does not insert one which may change due to revisions and make it impossible to deserialize earlier versions of serialized objects

Constructor Detail

Indexer

public Indexer()

Method Detail

getIndexingFeatures

public abstract java.util.Vector getIndexingFeatures(DataElem de,
                                                     ProxyDocument source)

All indexer classes must implement this method to return the indexing features that were extracted from specified data element and document at indexing time.

Parameters:

de - the data element from which to extract features

source - the document which contains the data element

Returns:

a vector of features for the specified data element and document