Unfortunately, without more information it is tough to answer your question. Whether or not an employer has the right not to hire you will depend on several factors, such as the type of domestic violence charge or conviction, how long ago it happened and the hiring practices of the company.
Federal laws state that an arrest and charge does not constitute a crime. If you were actually convicted then you should call the registry at 785-296-6877 to see if you still qualify for employment. I include some documents that may be helpful to you: a list of prohibited offenses and criminal record check program FAQ.