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Home , Prolonging the Magic, Sheep Go to Heaven, Welcome to Paradise

Sexy Models! An API for Declarative Data Models on the Desktop James Lemieux, Lombardi Software Jesse Wilson, Google http://publicobject.com/glazedlists/

TS-3057

2007 JavaOneSM Conference | Session TS-3057 | How Does Glazed Lists Help Me? Create a better user experience with less code

Implement deep binding to make your application feel smarter. Decouple your domain model from your user interface.

2007 JavaOneSM Conference | Session TS-3057 | 2 Agenda

Introduction to List Transformations “Deep Binding” Inferring Hierarchy Easy Chart Binding API Highlights

2007 JavaOneSM Conference | Session TS-3057 | 3 Agenda

Introduction to List Transformations “Deep Binding” Inferring Hierarchy Easy Chart Binding API Highlights

2007 JavaOneSM Conference | Session TS-3057 | 4 Glazed Lists Project Profile “List Transformations in Java™ Programming Language” • Actively developed • Free, open source • Stable and well tested

2007 JavaOneSM Conference | Session TS-3057 | 5 You Know the API

• ArrayList + Observer Pattern = EventList

2007 JavaOneSM Conference | Session TS-3057 | 6 Step 1 of 4: BasicEventList

• Holds your data • Observable

2007 JavaOneSM Conference | Session TS-3057 | 7 Step 1.5 of 4: TransformedList

• An EventList that decorates another EventList • Observable

2007 JavaOneSM Conference | Session TS-3057 | 8 Step 2 of 4: SortedList

• One of the TransformedLists • A view of your data

2007 JavaOneSM Conference | Session TS-3057 | 9 Comparator Interface

interface Comparator {

int compare(T alpha, T beta);

}

2007 JavaOneSM Conference | Session TS-3057 | 10 Step 3 of 4: FilterList

• Matcher, MatcherEditor interfaces for creating custom filters • Built-in matchers for iTunes-style filtering

2007 JavaOneSM Conference | Session TS-3057 | 11 Matcher Interface

interface Matcher {

boolean matches(T value);

}

2007 JavaOneSM Conference | Session TS-3057 | 12 Step 4 of 4: EventTableModel

• TableFormat provides the columns • EventList provides the rows

2007 JavaOneSM Conference | Session TS-3057 | 13 TableFormat Interface

interface TableFormat {

int getColumnCount();

String getColumnName(int column);

Object getColumnValue(T baseObject, int column);

}

2007 JavaOneSM Conference | Session TS-3057 | 14 DEMO Source, Sort, Filter, Display

2007 JavaOneSM Conference | Session TS-3057 | 15 Agenda

Introduction to List Transformations “Deep Binding” Inferring Hierarchy Easy Chart Binding API Highlights

2007 JavaOneSM Conference | Session TS-3057 | 16 Deep Binding? Your data and view don’t line up perfectly • Songs to artists • Rockstars by band

2007 JavaOneSM Conference | Session TS-3057 | 17 Songs to Artists: Input

• Cake, The Distance • Eminem, Lose Yourself • ACDC, Shoot to Thrill • Cake, Short Skirt Long Jacket • ACDC, Thunderstruck

2007 JavaOneSM Conference | Session TS-3057 | 18 Songs to Artists: Output

• ACDC • Cake • Eminem

2007 JavaOneSM Conference | Session TS-3057 | 19 Songs to Artists: Pipeline

• EventList • FunctionList of artists • UniqueList of artists

• Add more songs, the corresponding artists show up automagically

2007 JavaOneSM Conference | Session TS-3057 | 20 Songs to Artists

2007 JavaOneSM Conference | Session TS-3057 | 21 Rockstars by Band: Input

• Kurt Cobain, Nirvana • Billy Joe, • Mick Jagger, Rolling Stones • Keith Richards, Rolling Stones • Dave Grohl, Nirvana • Tre Cool, Green Day

2007 JavaOneSM Conference | Session TS-3057 | 22 Rockstars by Band: Output

• Green Day: Billy Joe, Tre Cool • Nirvana: Kurt Cobain, Dave Grohl • Rolling Stones: Mick Jagger, Keith Richards

2007 JavaOneSM Conference | Session TS-3057 | 23 Rockstars by Band: Pipeline

• EventList • GroupingList groups by band using a Comparator

2007 JavaOneSM Conference | Session TS-3057 | 24 Rockstars by Band

• Diagram

2007 JavaOneSM Conference | Session TS-3057 | 25 DEMO Deep Binding

2007 JavaOneSM Conference | Session TS-3057 | 26 Agenda

Introduction to List Transformations “Deep Binding” Inferring Hierarchy Easy Chart Binding API Highlights

2007 JavaOneSM Conference | Session TS-3057 | 27 TreeList Overview

• Filterable and sortable • Bind to trees and treetables • Infers structure from a flat list

2007 JavaOneSM Conference | Session TS-3057 | 28 Song Hierarchy: Input

• Green Day: , Basket Case • Green Day: , Welcome to Paradise • Cake: ,

2007 JavaOneSM Conference | Session TS-3057 | 29 Song Hierarchy: Output

• Green Day • Dookie • Basket Case • American Idiot • Welcome to Paradise • Cake • Prolonging the Magic • Sheep go to Heaven

2007 JavaOneSM Conference | Session TS-3057 | 30 TreeList.Format Interface interface Format {

void getPath(List path, T element);

boolean allowsChildren(T element);

Comparator getComparator(int depth); }

2007 JavaOneSM Conference | Session TS-3057 | 31 DEMO Inferring Hierarchy

2007 JavaOneSM Conference | Session TS-3057 | 32 Agenda

Introduction to List Transformations “Deep Binding” Inferring Hierarchy Easy Chart Binding API Highlights

2007 JavaOneSM Conference | Session TS-3057 | 33 Songs by Genre: Input

• : Green Day, Basket Case • Punk Rock: Green Day, Welcome to Paradise • Folk Rock: Cake, Sheep Go to Heaven • Hard Rock: ACDC, High Voltage • Hard Rock: ACDC: Thunderstruck

2007 JavaOneSM Conference | Session TS-3057 | 34 Songs by Genre: Output

Hard Rock Punk Rock Folk Rock

2007 JavaOneSM Conference | Session TS-3057 | 35 DEMO Chart Binding

2007 JavaOneSM Conference | Session TS-3057 | 36 Agenda

Introduction to List Transformations “Deep Binding” Inferring Hierarchy Easy Chart Binding API Highlights

2007 JavaOneSM Conference | Session TS-3057 | 37 Declarative

• Tell Glazed Lists what to do • Not how to do it

2007 JavaOneSM Conference | Session TS-3057 | 38 Concurrent

• Read/Write locks are built-in • Background fetching is easy

• Perceived and actual performance is higher

2007 JavaOneSM Conference | Session TS-3057 | 39 Productive

• Goal: Write less code • You provide the business logic, Glazed Lists does the rest

• Common pattern to most EventLists: implement the corresponding interface • Bean properties for implementing APIs

2007 JavaOneSM Conference | Session TS-3057 | 40 DEMO Productive APIs

2007 JavaOneSM Conference | Session TS-3057 | 41 Agenda

Introduction to List Transformations “Deep Binding” Inferring Hierarchy Easy Chart Binding API Highlights Wrapping Up

2007 JavaOneSM Conference | Session TS-3057 | 42 It’s Fast

• Fine-grained events allow Glazed Lists to sort and filter tables with 100,000+ elements • Uses custom data structures internally to manage indices efficiently

2007 JavaOneSM Conference | Session TS-3057 | 43 Plays Well With Others

• Swing • SWT • SwingLabs • JFreeChart • Layout • Beans Binding (JSR 295)

2007 JavaOneSM Conference | Session TS-3057 | 44 Interfaces for JavaBeans™ Architecture

// uses the method, Song.getArtist() Comparator songsByArtist = GlazedLists.beanPropertyComparator( Song.class, “artist”);

// uses Song.getName(), getArtist() and getAlbum() TableFormat songsTableFormat = GlazedLists.tableFormat( Song.class, new String[] { “name”, “artist”, “” }, new String[] { “Song Name”, “Artist”, “Album” });

// true if “Green Day” equals Song.getArtist() Matcher artistIsGreenDay = Matchers.beanPropertyMatcher( Song.class, “artist”, “Green Day”);

2007 JavaOneSM Conference | Session TS-3057 | 45 Glazed Lists

• Easy for developers • Great for users • High performance

• A powerful tool for your toolbox

2007 JavaOneSM Conference | Session TS-3057 | 46 For More Information

• http://glazedlists.dev.java.net/ • http://publicobject.com/glazedlists/

2007 JavaOneSM Conference | Session TS-3057 | 47 Q&A James Lemieux Jesse Wilson

2007 JavaOneSM Conference | Session TS-3057 | 48 Sexy Models! An API for Declarative Data Models on the Desktop James Lemieux, Lombardi Software Jesse Wilson, Google http://publicobject.com/glazedlists/

TS-3057

2007 JavaOneSM Conference | Session TS-3057 |