org.apache.ecs.filter
Class WordFilter

java.lang.Object
  |
  +--java.util.Dictionary
        |
        +--java.util.Hashtable
              |
              +--org.apache.ecs.filter.WordFilter

All Implemented Interfaces:

java.lang.Cloneable, Filter, java.util.Map, java.io.Serializable

public class WordFilter

extends java.util.Hashtable

implements Filter

This filter uses StringTokenizer to create "words" and allow you to replace on those "words". A word is defined as anything between two spaces. This filter should be relatively fast and shows how easy it is to implement your own filters.

Filter filter = new WordFilter();
filter.addAttribute("there","where");
filter.addAttribute("it","is");
filter.addAttribute("goes","it");
P p = new P();
p.setFilter(filter);
p.addElement("there it goes");
System.out.println(p.toString());

Produces: <p>where is it

Version:

$Id: WordFilter.java,v 1.5 2003/04/27 09:28:56 rdonkin Exp $

Author:

Stephan Nagy, Jon S. Stevens

See Also:

Serialized Form

Inner classes inherited from class java.util.Map

java.util.Map.Entry

Fields inherited from class java.util.Hashtable

count, emptyEnumerator, emptyIterator, ENTRIES, entrySet, KEYS, keySet, loadFactor, modCount, serialVersionUID, table, threshold, values, VALUES

Constructor Summary

WordFilter()

Method Summary

Filter	addAttribute(java.lang.String attribute, java.lang.Object entity) Put a filter somewhere we can get to it.
java.lang.String	getInfo() Returns the name of the filter
boolean	hasAttribute(java.lang.String attribute) Does the filter filter this?
java.lang.String	process(java.lang.String to_process) this method actually performs the filtering.
Filter	removeAttribute(java.lang.String attribute) Get rid of a current filter.

Methods inherited from class java.util.Hashtable

, clear, clone, contains, containsKey, containsValue, elements, entrySet, equals, get, getEnumeration, getIterator, hashCode, isEmpty, keys, keySet, put, putAll, readObject, rehash, remove, size, toString, values, writeObject

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, registerNatives, wait, wait, wait

Constructor Detail

WordFilter

public WordFilter()

Method Detail

getInfo

public java.lang.String getInfo()

Returns the name of the filter

Specified by:

getInfo in interface Filter

process

public java.lang.String process(java.lang.String to_process)

this method actually performs the filtering.

Specified by:

process in interface Filter

addAttribute

public Filter addAttribute(java.lang.String attribute,
                           java.lang.Object entity)

Put a filter somewhere we can get to it.

Specified by:

addAttribute in interface Filter

removeAttribute

public Filter removeAttribute(java.lang.String attribute)

Get rid of a current filter.

Specified by:

removeAttribute in interface Filter

hasAttribute

public boolean hasAttribute(java.lang.String attribute)

Does the filter filter this?

Specified by:

hasAttribute in interface Filter