Becoming Functional by Joshua Backfield

Author:Joshua Backfield
Language: eng
Format: epub, mobi, pdf
ISBN: 9781449368173
Publisher: O’Reilly Media, Inc.
Published: 2014-10-26T16:00:00+00:00

Your boss at XXY has asked that you create a new function that can get a list of enabled Contacts for all enabled Customers. Let’s start with the simplest implementation by using a method. The method will be called enabledContacts(), and we’ll add it to the Customer. We see this implementation in Example 6-2.

Example 6-2. All enabled contacts method in Customer.java

public List<Contact> enabledContacts() { contacts.findAll { contact -> contact.enabled } }

Well, that was pretty easy, but what happens if we call this multiple times? That’s an easy fix: let’s just make this into a member variable instead of a method.

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