dole is now referred to as either Jobseekers benefit (JB) or jobseekers allowance (JA). The former is based on your PRSI record while the second is means-tested. You move from JB to JA after (i think) 15 months of continuous sign-ing on at which point you are means tested. A spouse's income would come into the equation at that point.
As the name suggests, a condition of JB or JA is that the person is available for and actively seeking work and this criterion is likely to be tested at some point when signing on (e.g by referral to FAS or the offer of training, etc). It wouldn't be payable therefore to someone who can't work for family reasons.