org.encog.bot.browse.extract
Class BasicExtract

java.lang.Object
  org.encog.bot.browse.extract.BasicExtract

All Implemented Interfaces:

Extract

Direct Known Subclasses:

ExtractWords

public abstract class BasicExtract
extends java.lang.Object
implements Extract

Implements the basic functionality that most extractors will need to implement. Mostly this involves maintaining a collection of the extraction listeners that will receive events as the extraction occurs.

Author:

jheaton

Constructor Summary

BasicExtract()

Method Summary

void	addListener(ExtractListener listener) Add a listener for the extraction.
void	distribute(java.lang.Object object) Distribute an object to the listeners.
java.util.List<java.lang.Object>	extractList(WebPage page) Extract from the web page and return the results as a list.
java.util.Collection<ExtractListener>	getListeners()
void	removeListener(ExtractListener listener) Remove the specified listener.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.encog.bot.browse.extract.Extract

extract

Constructor Detail

BasicExtract

public BasicExtract()

Method Detail

addListener

public void addListener(ExtractListener listener)

Add a listener for the extraction.

Specified by:

addListener in interface Extract

Parameters:

listener - The listener to add.

distribute

public void distribute(java.lang.Object object)

Distribute an object to the listeners.

Parameters:

object - The object to be distributed.

extractList

public java.util.List<java.lang.Object> extractList(WebPage page)

Extract from the web page and return the results as a list.

Specified by:

extractList in interface Extract

Parameters:

page - The web page to extract from.

Returns:

The results of the extraction as a List.

getListeners

public java.util.Collection<ExtractListener> getListeners()

Specified by:

getListeners in interface Extract

Returns:

A list of listeners registered with this object.

removeListener

public void removeListener(ExtractListener listener)

Remove the specified listener.

Specified by:

removeListener in interface Extract

Parameters:

listener - The listener to rmove.