Instead of living a normal, carefree youth, the victim said he suffered a "living nightmare that no one deserves to go through".
The victim said he still struggled with the hurt and pain "every single day of my life" and had tried to hide it from family and friends.
The catalyst for the victim finally coming forward to police was Hogan being appointed as a school principal, the court heard.
Crown prosecutor Claire Bouchier said it was "serious offending" over a prolonged five-year period.
She told how Hogan "groomed" the victim and then "normalised" the illicit behaviour.
Hogan, as a respected school teacher, abused his position of trust in the community and with the victim, the court heard.
The victim has since gone on to become a "very successful businessman", the court heard.
Hogan has lived with "shame and remorse" every day over the past 25 years, the court heard.
Defence counsel Stephen Hembrow said Hogan had, apart from the offending, appeared to have led a blameless, positive, and pro-social life, while being a highly accomplished teacher and headmaster.
"He still finds it hard to believe that he is before the court today - that he has committed such serious crimes," Hembrow said.
Today, Hembrow said Hogan apologised to his victim, the victim's family, and the teaching profession and community at large.
He was now a "broken man" who had "lost everything", Hembrow said.
Judge Brian Callaghan said the offending had been regular and was harrowing to read about.
The judge said he wasn't able to approximate the number of times the offending happened over the five-year period.
He noted that Hogan had sought counselling after the offending, and had appeared to have lived a crime-free life since the mid-1990s.
After considering the length of sentence "anxiously", Callaghan decided to jail Hogan.
He concluded that the imposition of a minimum sentence of imprisonment was not warranted in this case, given that Hogan will be subject to the sex offenders register upon his eventually release.
Callaghan also ordered Hogan to make an emotional harm reparation payment of $15,000.
The Teachers Council has cancelled his registration.
In April, school bus driver and caretaker Robert Selwyn Burrett was sentenced to 19-and-a-half years in jail with a minimum non-parole period of 10 years after the 64-year-old grandfather admitted 21 abuse charges relating to 12 young victims, including rape, sodomy, forced oral sex, indecent assaults, video-taping of the offending, and watching pornography, often in his underground caretaker's shed.
The shocking case prompted the Ministry of Education and Education Council to investigate extending their powers to all people who work with children in schools.
The Ministry today welcomed the sentencing.
"We are appalled by the serious offences admitted by him and we hope that the sentence will help bring some closure for the victim and family," said head of Sector Enablement and Support, Katrina Casey.
"Keeping children safe is our number one priority, as it is for every school and early childhood service.
"It is essential that we all continue to work towards the effective implementation of the Vulnerable Children Act 2014. These changes support the safety and wellbeing of children.
"We also recognise the impact this case has had on our school communities and we have been working closely with the schools where Hogan had most recently been employed to provide any support they need.
"This has included contact with our Traumatic Incident teams, who have specialists who can provide advice and support. A provision for staff counselling has also been established through Employee Assistance Programme services, and can be accessed by schools when required and we have provided funding for staff relievers."
