Blog Archives

Mapping Architecture Diagrams to Code – the “most specific pattern” rule

Architecture Diagrams in Structure101 are mapped to the physical code by patterns associated with each cell in the diagram. This enables the visual specification of rules that can then be applied to a specific version of your code so that

Posted in Architecture, Architecture Diagrams, Dependency Management, Structure101

Travelin’ lite (the only way to fly)

Of course, you can’t code up a (meaningful) system without some number of building blocks. So even in a perfectly architected and layered system, you inevitably accumulate some baggage as you move up the stack. The trick, though, is to

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Posted in Dependency Management

Package design matters – Part 1

Java packages are often used like file-system folders to organize source. But source files differ from “normal” files in that they are highly inter-dependent. Considering this interdependence as a package hierarchy evolves can have significant productivity benefits. Packages as Folders

Posted in Architecture, Complexity, Dependency Management, Emergent Design

Spring Framework 2.1 M3 Architecture

Here are some architecture diagrams for Spring Framework 2.1 M3 (released yesterday). You can point the (free) structure101 plug-in at these and get IDE warnings if your customizations break Jeurgen’s architecture. Here is the top level breakout of org.springframework: Structure101

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Posted in Dependency Management, Structure101

Code Organization Guidelines for Large Code Bases

In an excellent on-line presentation Juergen Hoeller gives rationale and guidelines for controlling the structure of large, evolving code-bases. Juergen is the chief architect of the Spring framework, which as I have previously pointed out is structurally almost perfect. This

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Posted in Architecture, Dependency Management

Eclipse Plugin (OSGi) Visualization

If you are going mad trying to figure out the dependencies between lots of Eclipse plug-ins, or work with other large OSGi systems, you may be interested in this. We’ve had a few people looking for an Eclipse/OSGi backend for

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Posted in Dependency Management

Jar Hell

A lot of jars can contribute to (and mask) the logical package/class structure. Here’s how to make sense of the whole mess using Structure101.1. View your project in the Logical hierarchy2. Tag the classes or packages you’re interested in3.  Switch

Posted in Architecture, Dependency Management, Structure101

DevX review of Structure101

Posted in Architecture, Complexity, Dependency Management, Emergent Design, Structure, Structure101