CODEWITHSUNDEEP
javaintellij-ideahierarchy
quantum
quantum

Reputation: 3039

IntelliJ IDEA filter hierarchy subtype

Is there a way to filter hierarchy subtype in IntelliJ Idea?

For example, I would like to generate the class hierarchy for java.util.Map.Entry<K, V> but would like to display just the public classes and classes residing in java.* package.

Eclipse seems not to support this either and I can't see a way to directly do this from IDE UI so is there a way to achieve this or perhaps script it within IDEA itself?

EDIT: To clarify things, I wanted to find if there is already a simple and public implementation of Entry<K, V> within the JDK so that I don't need to write my own crufty code.

Turns out there are two good candidates (SimpleEntry<K, V> and SimpleImmutableEntry<K, V>, for those who may be interested) but I only managed to find them after some painstaking sifting through the myriad implementations of Entry<K, V> on my classpath (see here).

What I want is to filter such deep type hierarchies according to package name and access modifier.

Upvotes: 3

Views: 764

Answers (1)

Mateusz Szulc
Mateusz Szulc

Reputation: 1794

I'm not sure what are you exactly trying to achieve, because you're talking about "generating the class hierarchy" and then you're talking about "displaying just public items".

I assume, that you would like to navigate to Hirarchy Tool Window (by pressing CTRL-H on selected type) and filter results, so that only types from desired package (java.*) will be displayed.

To achieve this, in Hirarchy Tool Window on the toolbar there is a "Scope" ComboBox. Click it and choose "Configure...". "Scopes" window will appear, where you can add and configure a new custom scope, which will filter the desired types for you.

enter image description here

EDIT: I couldn't found in scope languge syntax reference any option for filtering based on access modifiers.

But I've googled a little bit and I think you might be looking for Structural Search (CTRL+SHIFT+S). You can also use here "Scopes" like described above, and also use access modifiers like this:

public class $DerivedClass$ implements Entry {}

or

private class $DerivedClass$ implements Entry {}

I haven't used it too much, but it's probably a very powerful tool and will help you achieve better results than Hirarchy Tool Window.

Reference: here, here and here.

Upvotes: 4

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