Editorial Reviews. From the Back Cover. The practice of enterprise application development has benefited from the emergence of many new enabling. Collection of eBooks. Contribute to himanshugpt/ebooks-1 development by creating an account on GitHub. Title Patterns of Enterprise Application Architecture; Author(s) Martin Fowler; Publisher: ); eBook(January ); Hardcover pages; eBook PDF files.
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The practice of enterprise application development has benefited from the emergence of many new enabling technologies. Multi-tiered object-oriented platforms. This book started after Dave Rice and I gave some talks on J2EE architecture and mulled over how the concepts we had learned in C++, Forte, CORBA, and. Catalog of Patterns of Enterprise Application Architecture. Last Significant Update : January A short summary of the patterns in Patterns of Enterprise.
I picked these languages because most software developers can read them, not because of any particular coupling or opinions about the language. The main topic areas are: I've been fortunate enough to have some excellent contributors to this book, most notably Dave Rice - who wrote a good tenth of it. I wrote this book in the early noughties, but my colleagues and I find the patterns are still relevant today.
Our hypothesis then was that the essential problems and solutions in software architecture don't really change that much - that certainly has been true for the last decade. Another change since I wrote the book is that many patterns are now implemented by common frameworks particularly with database interaction.
This doesn't mean that developers no longer need to understand this material.
Distribution Strategies. The Allure of Distributed Objects. Remote and Local Interfaces. Where You Have to Distribute. Working with the Distribution Boundary.
Interfaces for Distribution. Putting it all Together. Starting With the Domain Layer.
Down to the Data Source. Data Source for Transaction Script. Data Source Table Module Data Source for Domain Model The Presentation Layer.
Some Technology-Specific Advice. Java and J2EE. Stored Procedures. Web Services. Other Layering Schemes. Transaction Script. How It Works. When to Use It. The Revenue Recognition Problem. Revenue Recognition Java. Domain Model. Table Module. Revenue Recognition with a Table Module C. Service Layer by Randy Stafford. Table Data Gateway. Person Gateway C. Using ADO. Row Data Gateway. A Person Record Java.
Active Record. A Simple Person Java. Data Mapper. A Simple Database Mapper Java. Separating the Finders Java. Creating an Empty Object Java. Object-Relational Behavioral Patterns. Unit of Work. Identity Map. Methods for an Identity Map Java. Lazy Load. Lazy Initialization Java. Virtual Proxy Java. Using a Value Holder Java. Using Ghosts C. Object-Relational Structural Patterns.
Identity Field. Integral Key C. Using a Key Table Java.
Using a Compound Key Java. Foreign Key Mapping. Single-Valued Reference Java. Multitable Find Java. Collection of References C. Association Table Mapping. Employees and Skills C. Dependent Mapping. Albums and Tracks Java. Embedded Value. Simple Value Object Java.
Serialized LOB. Single Table Inheritance. A Single Table for Players C. Loading an Object from the Database. Class Table Inheritance.
Players and Their Kin C. Concrete Table Inheritance. Concrete Players C. Inheritance Mappers. Object-Relational Metadata Mapping Patterns. Metadata Mapping. Using Metadata and Reflection Java.
Query Object. A Simple Query Object Java. Repository by Edward Hieatt and Rob Mee. Finding a Person's Dependents Java. Swapping Repository Strategies Java. Web Presentation Patterns. Model View Controller. Page Controller. Page Handler with a Code Behind C.
Front Controller. Simple Display Java. Template View. Transform View. Simple Transform Java. Two Step View. Application Controller. State Model Application Controller Java. Distribution Patterns.
Remote Facade. Web Service C. Data Transfer Object.
Transferring Information about Albums Java. Offline Concurrency Patterns. Optimistic Offline Lock by David Rice. Domain Layer with Data Mappers Java.
This is a collection of tricks, schticks, and small-A architectures that just tend to show up repeatedly in the wild. Martin Fowler, with his perspective as an idea man and his position as a consultant and thought leader, has obse I think this is a great book. Martin Fowler, with his perspective as an idea man and his position as a consultant and thought leader, has observed these and collected them together in a catalog along with some weighty analysis.
An initial read-through is probably a good idea, at least enough to assimilate the introduction and be familiar with the existence of most of the patterns. Out of real-world context, the material feels to me to be very academic and not very practical. Where it comes together is when I can use the book like a bird guide whilst bird watching: Digging through some code or design docs and stumbling on a mechanism, conceived and implemented by an author who may not have ever heard of PoEAA, and having some recognition like "Hey, this is very similar to a Query Object pattern.
Sometimes it helps the task at hand by filling in as the missing documentation; other times it's merely "fun facts". I've also used this book when putting together my own designs. It can provide useful guidance "What's an alternative if I don't like our offline locking". In both of the above uses, the book shines when I have a pattern already in front of me and I want to know more.
Probably as I get more practice out of putting context into Fowler's analysis, I'll be able to get direct practical value rather than food-for-thought out of working it the other way - starting with the academic discussion and being able to visualize real-world tailored specifics rather than idealized implementations.