Is it necessary to check all the field in equals method of model class in JPA, or can I use only id?
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Is it necessary to check all the field in equals method of model class in JPA, or can I use only id?
No, it’s not necessary to put all of your fields in the equals method just because you’re using JPA. In fact, JPA specific fields you may want to ignore.
You need to decide what makes most sense for your application, but it’s quite common to exclude your @Id and @Version fields. Include only those fields that differentiate one instance of an object from another: essentially the fields that form the key.