//?-*-?Java?-*-
/*
?*?
?*?
?*??Copyright?（c）?2002
?*??Institute?for?Information?Processing?and?Computer?Supported?New?Media?（IICM）
?*??Graz?University?of?Technology?Austria.
?*?
?*?
?*?
?*?
?*?
?*??Name:????Alphabetizer.java
?*?
?*??Purpose:?Sorts?circular?shifts?alphabetically
?*?
?*??Created:?05?Nov?2002?
?*?
?*??$Id$
?*?
?*??Description:
?*????Sorts?circular?shifts?alphabetically
?*?
*/

package?kwic.es;

/*
?*?$Log$
*/

import?java.util.Observable;
import?java.util.Observer;

/**
?*??Similarly?to?CircularShifter?class?Alphabetizer?class?implemets?the?“Observer“?
?*??part?of?the?standard?“Observable“-“Observer“?mechanism.?However?an?object
?*??of?Alphabetizer?class?“observes“?a?LineStorageWrapper?object?which?keeps
?*??circular?shifts?whereas?an?object?of?CircularShifter?class?“observes“?a?LineStorageWrapper
?*??object?which?keeps?original?lines?from?a?KWIC?input?file.?Any?event?produced?and?sent
?*??by?the?observed?LineStorageWrapper?object?（e.g.?whenever?a?new?circular?shift
?*??has?been?added）?is?catched?by?Alphabetizer?object.?In?turn?this?leads?to?
?*??sorting?the?circular?shifts?alphabetically.
?*??@author??dhelic
?*??@version?$Id$
*/

public?class?Alphabetizer?implements?Observer{

//----------------------------------------------------------------------
/**
?*?Fields
?*
?*/
//----------------------------------------------------------------------

//----------------------------------------------------------------------
/**
?*?Constructors
?*
?*/
//----------------------------------------------------------------------

//----------------------------------------------------------------------
/**
?*?Methods
?*
?*/
//----------------------------------------------------------------------

//----------------------------------------------------------------------
/**
?*/

??public?void?update（Observable?observable?object?arg）{
????LineStorageWrapper?shifts?=?（LineStorageWrapper）?observable;
????LineStorageChangeEvent?event?=?（LineStorageChangeEvent）?arg;

????switch（event.getType（））{
????case?LineStorageChangeEvent.ADD:
??????int?count?=?shifts.getLineCount（）;
??????String?shift?=?shifts.getLineAsString（count?-?1）;
??????for（int?i?=?0;?i?????????if（shift.compareTo（shifts.getLineAsString（i））?<=?0）{
???????????shifts.insertLine（shifts.getLine（count?-?1）?i）;
???????????shifts.deleteLine（count）;
???????????break;
????????}???????????
??????}
??????break;
????default:
??????break;??????
????}
??}

//----------------------------------------------------------------------
/**
?*?Inner?classes
?*
?*/
//----------------------------------------------------------------------

}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????15166??2009-12-01?21:21??LineStorage.java

?????文件???????3847??2009-12-01?21:21??LineStorageChangeEvent.java

?????文件???????5215??2009-12-01?21:21??LineStorageWrapper.java

?????文件???????1723??2009-12-01?21:21??Output.java

?????文件???????2784??2009-12-01?21:21??Alphabetizer.java

?????文件???????3266??2009-12-01?21:21??CircularShifter.java

?????文件???????3869??2009-12-01?21:21??Input.java

?????文件???????8922??2009-12-01?21:45??KWIC.java

-----------?---------??----------?-----??----

????????????????44792????????????????????8