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Extract Package

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description Extract Package Overview

This refactoring takes a group of related classes and interfaces and moves them into a brand new, dedicated package or module. It is a structural tool that enforces the Separation of Concerns principle at the highest level. It is crucial for managing the complexity of large applications by creating clear, isolated domains within the codebase.

help Extract Package FAQ

What does the Extract Package refactoring change?

It moves a selected group of related classes and interfaces into a new package or module. The goal is to give that code a clearer structural home and improve separation of concerns.

Does Extract Package change what a class does?

It is primarily a structural refactoring, so the intended behavior should remain the same. Imports, package declarations, module references, and visibility may need to be updated.

When should a developer use Extract Package?

It is useful when one package contains unrelated responsibilities or when a group of classes forms a clear subsystem. Moving that group can make a large application easier to navigate and maintain.

Can Extract Package break a build?

Yes. Code that refers to the old package path, including imports, tests, configuration, and reflection strings, can fail after the move. A complete build and test run should follow the refactoring.

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