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(Quick Reference) # getPersistentValue ## Purpose Retrieve the original value of a field for a domain class instance. ## Examples

    def b = Book.get(1)
    someMethodThatMightModifyTheInstance(b)if (b.isDirty('name')) {
        def currentName = b.name
        def originalName = b.getPersistentValue('name')
        if (currentName != originalName) {
            …
        }
    }
## Description This method is useful mostly for audit logging or other work done in a beforeUpdate event callback. Hibernate caches the original state of all loaded instances for dirty checking during a flush and this method exposes that data so you can compare it with the current state. | Quick Reference (hide)