Patterns of Enterprise

A handbook for enterprise system developers guiding them through the intricacies and lessons learned in application development. http://www.dropshippers.co.za/

° The latest book from noted technology guru Martin Fowler http://www.dropshippers.co.za/

° Provides proven solutions to the everyday problems facing information systems developers http://www.dropshippers.co.za/

° Patterns are supported by code examples, in both Java and C# http://www.dropshippers.co.za/

Table of Contents

Preface.

Who This Book Is For.Acknowledgements.Colophon.

Introduction.

Architecture.Enterprise Applications.Kinds of Enterprise Application.Thinking About Performance.Patterns.The Structure of the Patterns.Limitations of These Patterns.

I. THE NARRATIVES.

1. Layering.

• The Evolution of Layers in Enterprise Applications.The Three Principal Layers.Choosing Where to Run Your Layers.
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2. Organizing Domain Logic.

Making a Choice.Service Layer.

1. Mapping to Relational Databases.
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Architectural Patterns.The Behavioral Problem.Reading in DataStructural Mapping Patterns.Mapping Relationships.Inheritance.Building the Mapping.Double Mapping.Using Metadata.Database Connections.Some Miscellaneous Points.Further Reading.

1. Web Presentation.
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View Patterns.Input Controller Patterns.Further Reading.

1. Concurrency (by Martin Fowler and David Rice).
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Concurrency Problems.Execution Contexts.Isolation and Immutability.Optimistic and Pessimistic Concurrency Control.Preventing Inconsistent Reads.Deadlocks.Transactions.ACID.Transactional Resources.Reducing Transaction Isolation for Liveness.Business and System Transactions.Patterns for Offline Concurrency Control.Application Server Concurrency.Further Reading.

1. Session State.
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The Value of Statelessness.Session State.Ways to Store Session State.

1. Distribution Strategies.
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The Allure of Distributed Objects.Remote and Local Interfaces.Where You Have to Distribute.Working with the Distribution Boundary.Interfaces for Distribution.

1. Putting it all Together.
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Starting With the Domain Layer.Down to the Data Source.Data Source for Transaction Script. Data Source Table Module (125). Data Source for Domain Model (116). The Presentation Layer.Some Technology-Specific Advice.Java and J2EE..NET.Stored Procedures.Web Services.Other Layering Schemes.

II. THE PATTERNS.

9. Domain Logic Patterns.

• Transaction Script.How It Works.When to Use It.The Revenue Recognition Problem.Example: Revenue Recognition (Java).Domain Model.How It Works.When to Use It.Further Reading.Example: Revenue Recognition (Java).Table Module.How It Works.When to Use It.Example: Revenue Recognition with a Table Module (C#).Service Layer(by Randy Stafford).How It Works.When to Use It.Further Reading.Example: Revenue Recognition (Java).
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10. Data Source Architectural Patterns.

Table Data Gateway.How It Works.When to Use It.Further Reading.Example: Person Gateway (C#).Example: Using ADO.NET Data Sets (C#).Row Data Gateway.How It Works.When to Use It.Example: A Person Record (Java).Example: A Data Holder for a Domain Object (Java).Active Record.How It Works.When to Use It.Example: A Simple Person (Java).Data Mapper.How It Works.When to Use It.Example: A Simple Database Mapper (Java).Example: Separating the Finders (Java).Example: Creating an Empty Object (Java).

1. Object-Relational Behavioral Patterns.
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Unit of Work.How It Works.When to Use It.Example: Unit of Work with Object Registration (Java) (by David Rice).Identity Map.How It Works.When to Use It.Example: Methods for an Identity Map (Java).Lazy Load.How It Works.When to Use It.Example: Lazy Initialization (Java).Example: Virtual Proxy (Java).Example: Using a Value Holder (Java).Example: Using Ghosts (C#).

1. Object-Relational Structural Patterns.
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Identity Field.How It Works.When to Use It.Further Reading.Example: Integral Key (C#).Example: Using a Key Table (Java).Example: Using a Compound Key (Java).Foreign Key Mapping.How It Works.When to Use It.Example: Single-Valued Reference (Java).Example: Multitable Find (Java).Example: Collection of References (C#).Association Table Mapping.How It Works.When to Use It.Example: Employees and Skills (C#).Example: Using Direct SQL (Java).Example: Using a Single Query for Multiple Employees (Java) (by Matt Foemmel and Martin Fowler).Dependent Mapping.How It Works.When to Use It.Example: Albums and Tracks (Java).Embedded Value.How It Works.When to Use It.Further Reading.Example: Simple Value Object (Java).Serialized LOB.How It Works.When to Use It.Example: Serializing a Department Hierarchy in XML (Java).Single Table Inheritance.How It Works.When to Use It.Example: A Single Table for Players (C#).Loading an Object from the Database.Class Table Inheritance.How It Works.When to Use It.Further Reading.Example: Players and Their Kin (C#).Concrete Table Inheritance.How It Works.When to Use It.Example: Concrete Players (C#).Inheritance Mappers.How It Works.When to Use It.

1. Object-Relational Metadata Mapping Patterns.
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Metadata Mapping.How It Works.When to Use It.Example: Using Metadata and Reflection (Java).Query Object.How It Works.When to Use It.Further Reading.Example: A Simple Query Object (Java).Repository (by Edward Hieatt and Rob Mee).How It Works.When to Use It.Further Reading.Example: Finding a Person's Dependents (Java).Example: Swapping Repository Strategies (Java).

1. Web Presentation Patterns.
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Model View Controller.How It Works.When to Use It.Page Controller.How It Works.When to Use It.Example: Simple Display with a Servlet Controller and a JSP View (Java).Example: Using a JSP as a Handler (Java).Example: Page Handler with a Code Behind (C#).Front Controller.How It Works.When to Use It.Further Reading.Example: Simple Display (Java).Template View.How It Works.When to Use It.Example: Using a JSP as a View with a Separate Controller (Java).Example: ASP.NET Server Page (C#).Transform View.How It Works.When to Use It.Example: Simple Transform (Java).Two Step View.How It Works.When to Use It.Example: Two Stage XSLT (XSLT).Example: JSP and Custom Tags (Java).Application Controller.How It Works.When to Use It.Further Reading.Example: State Model Application Controller (Java).

1. Distribution Patterns.
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Remote Facade.How It Works.When to Use It.Example: Using a Java Session Bean as a Remote Facade (Java).Example: Web Service (C#).Data Transfer Object.How It Works.When to Use It.Further Reading.Example: Transferring Information about Albums (Java).Example: Serializing Using XML (Java).

1. Offline Concurrency Patterns.
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Optimistic Offline Lock (by David Rice).How It Works.When to Use It.Example: Domain Layer with Data Mappers (165) (Java).Pessimistic Offline Lock (by David Rice).How It Works.When to Use It.Example: Simple Lock Manager (Java).Coarse-Grained Lock (by David Rice and Matt Foemmel).How It Works.When to Use It.Example: Shared Optimistic Offline Lock (416) (Java).Example: Shared Pessimistic Offline Lock (426) (Java).Example: Root Optimistic Offline Lock (416) (Java).Implicit Lock (by David Rice).How It Works.When to Use It.Example: Implicit Pessimistic Offline Lock (426) (Java).

1. Session State Patterns.
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Client Session State.How It Works.When to Use It.Server Session State.How It Works.When to Use It.Database Session State.How It Works.When to Use It.

1. Base Patterns.
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Gateway.How It Works.When to Use It.Example: A Gateway to a Proprietary Messaging Service (Java).Mapper.How It Works.When to Use It.Layer Supertype.How It Works.When to Use It.Example: Domain Object (Java).Separated Interface.How It Works.When to Use It.Registry.How It Works.When to Use It.Example: A Singleton Registry (Java).Example: Thread-Safe Registry (Java) (by Matt Foemmel and Martin Fowler).Value Object.How It Works.When to Use It.Money.How It Works.When to Use It.Example: A Money Class (Java) (by Matt Foemmel and Martin Fowler).Special Case.How It Works.When to Use It.Further Reading.Example: A Simple Null Object (C#).Plugin (by David Rice and Matt Foemmel).How It Works.When to Use It.Example: An Id Generator (Java).Service Stub (by David Rice).How It Works.When to Use It.Example: Sales Tax Service (Java).Record Set.How It Works.When to Use It.References

Index. 0321127420T10162002 http://www.dropshippers.co.za/