EDIT

package eu.etaxonomy.cdm.api.service;

import java.util.ArrayList;

import java.util.List;

import java.util.UUID;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import eu.etaxonomy.cdm.api.service.pager.Pager;

import eu.etaxonomy.cdm.api.service.pager.impl.DefaultPagerImpl;

import eu.etaxonomy.cdm.model.view.AuditEvent;

import eu.etaxonomy.cdm.persistence.dao.common.AuditEventSort;

import eu.etaxonomy.cdm.persistence.view.IAuditEventDao;

@Service

public class AuditEventService implements IAuditEventService {

	IAuditEventDao dao;

	@Autowired

	public void setDao(IAuditEventDao dao) {

		this.dao = dao;

	}

	public boolean exists(UUID uuid) {

		return dao.exists(uuid);

	}

	public AuditEvent findById(Integer id) {

		return dao.findById(id);

	}

	public AuditEvent findByUuid(UUID uuid) {

		return dao.findByUuid(uuid);

	}

	public AuditEvent getNextAuditEvent(AuditEvent auditEvent) {

		return dao.getNextAuditEvent(auditEvent);

	}

	public AuditEvent getPreviousAuditEvent(AuditEvent auditEvent) {

		return dao.getPreviousAuditEvent(auditEvent);

	}

	public Pager<AuditEvent> list(Integer pageNumber, Integer pageSize,	AuditEventSort sort) {

		 Integer numberOfResults = dao.count();

		List<AuditEvent> results = new ArrayList<AuditEvent>();

		if(numberOfResults > 0) { // no point checking again

			results = dao.list(pageNumber, pageSize, sort); 

		}

		return new DefaultPagerImpl<AuditEvent>(pageNumber, numberOfResults, pageSize, results);

	}

}