EDIT

package eu.etaxonomy.cdm.api.service;

import java.util.ArrayList;

import java.util.List;

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

import org.springframework.stereotype.Service;

import org.springframework.transaction.annotation.Propagation;

import org.springframework.transaction.annotation.Transactional;

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

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

import eu.etaxonomy.cdm.model.common.Marker;

import eu.etaxonomy.cdm.model.common.MarkerType;

import eu.etaxonomy.cdm.model.common.User;

import eu.etaxonomy.cdm.persistence.dao.hibernate.common.MarkerDaoImpl;

import eu.etaxonomy.cdm.persistence.query.OrderHint;

@Service

@Transactional(propagation = Propagation.SUPPORTS, readOnly = true)

public class MarkerServiceImpl extends	VersionableServiceBase<Marker, MarkerDaoImpl> implements IMarkerService {

	@Autowired

	protected void setDao(MarkerDaoImpl dao) {

		this.dao = dao;

	}

	public Pager<Marker> page(MarkerType markerType, Integer pageSize,	Integer pageNumber, List<OrderHint> orderHints,	List<String> propertyPaths) {

        Integer numberOfResults = dao.count(markerType);

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

		if(numberOfResults > 0) { // no point checking again //TODO use AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)

			results = dao.list(markerType, pageSize, pageNumber, orderHints, propertyPaths);

		}

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

	}

	public Pager<Marker> list(User creator, MarkerType markerType,Integer pageSize, Integer pageNumber, List<OrderHint> orderHints,	List<String> propertyPaths) {

        Integer numberOfResults = dao.count(creator,markerType);

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

		if(numberOfResults > 0) { // no point checking again  //TODO use AbstractPagerImpl.hasResultsInRange(numberOfResults, pageNumber, pageSize)

			results = dao.list(creator,markerType, pageSize, pageNumber, orderHints, propertyPaths);

		}

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

	}

	public int count(User creator, MarkerType markerType) {

        return dao.count(creator,markerType);

	}

}