Continue reading: Another builder pattern for Java

Another builder pattern for Java

Whenever you have a domain object, data transfer object, parameter object or any other object that can’t be instantiated with constructor parameters only, you need to create a builder for its class.

The great thing about Java is that it is strongly (statically) typed so a builder can give you compiler errors if you forget to set the compulsory parameters. If you use the builder in this pattern, you also get a very fluent interface that imposes order on the parameters. When using the builder, your IDE will suggest the next parameter to set.

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