legacy code

However, testability has rarely been a consideration for legacy code, and consequently, you have to pull stunts like this one.

Use it to beautify your code or to reformat legacy code you've inherited to make it more readable.

For a variety of reasons -- legacy code, manpower, budget, priorities -- some consumers may not migrate in a timely fashion.

Programming to interfaces is a good OO practice, but we are not always presented with legacy code that follows the practice.

Disabling these options on legacy code can be risky, however, since they may be depending upon them being set for proper execution.

This article shows you how to develop a unit test suite for legacy code that's never been tested, using jEdit as an example.

One of the most important needs in salvaging the legacy code is to identify the business processes that the code represents.

Including mechanisms in place to allow legacy code to be referenced within the models.

Even if you try to avoid using null flags in your own code, you will inevitably have to deal with legacy code that uses them.

Measuring cyclomatic complexity is, therefore, particularly valuable in situations where you're working with a legacy code base.

In particular, the actual grouping paradigm of the classes (files) of the legacy code, if any, should be known.

Consequences: Application or legacy code can be changed to provide a clean interface.

Legacy code bases tend to have lots of vestigial code; code that was necessary at one point in time but is no longer.

First, we could reuse legacy code that was otherwise impossible to reuse without exposing it as a service using web services technologies.

To salvage code from an existing legacy code base, you first have to locate that code and determine its worthiness for reuse.

What's more, these classes work seamlessly with both legacy code and new generic code (next month, we'll explain how that's possible).

Provides a legacy code example to describe how to implement, configure, and use a simple configuration section handler by implementing the.

In addition to the legacy code burden, your production requirements may have changed, or newer vendor APIs are available only in Python.

In other words, you have to identify the business process by the outcome of the legacy code executed.

The use of wrapper-facade to wrap complex interactions between legacy code modules provided greater reuse opportunities.

You'll learn a tremendous amount the first time you use complexity metrics on your legacy code base, but don't stop there.

The third and final step in creating Web services from legacy code is to link the Web services to the overlying business processes.

Naresh Jain had the following suggestions specifically for legacy code.

Are there code dependencies in the legacy code that will make it difficult to retire the legacy system over time?

Working with the output, continue modeling, delegating to the legacy code (see Figure 5).

A test suite for legacy code begins with a single test.

For legacy code, rather than looking at individual methods, look at what the application is doing.

Integrate with existing legacy code to avoid a rewrite.

Sometimes, however, you have to integrate your new code with legacy code that others have written and that can't be updated.

The older and crustier the legacy code is, the more vestigial code you'll find.

You can safely delete references to these members when you upgrade your legacy code to the. NET Framework version 2. 0.

Many of my clients have too much legacy code and momentum to change pervasively.

Deploy the service definitions, along with the generated legacy code, on the CICS TS 3. 1.

You have legacy code you don't understand, and you have new code that calls code you don't understand.

If the legacy code doesn't have any contracts, you're going to get annoying warnings from the Static Checker.

Fabric 3 also suports a lot of heuristics for enabling running legacy code as SCA components.

Or, they can follow a similar process to visualize existing legacy code.

Even if you have a large, untested legacy code base, start writing tests for it now.

I think they can help to partially characterize a large base of legacy code.

When legacy code is called, either directly by calling an exported function or indirectly by using a function pointer, the kernel must

Working Effectively with Legacy Code

A scheme for reusing of legacy code in grid