MarksheetDAOHibImpl.java

Source Code‎ > ‎src‎ > ‎in.co.sunrays.proj1‎ > ‎dao‎ > ‎

package in.co.sunrays.proj1.dao;

import in.co.sunrays.proj1.dto.MarksheetDTO;
import in.co.sunrays.proj1.exception.DatabaseException;
import in.co.sunrays.proj1.exception.DuplicateRecordException;

import java.util.List;

import org.apache.log4j.Logger;
import org.hibernate.HibernateException;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Restrictions;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

/**
* Hibernate Implementation of MarksheetDAO
*
* @author SUNRAYS Technologies
* @version 1.0
* @Copyright (c) SUNRAYS Technologies
*/
public class MarksheetDAOHibImpl extends HibernateDaoSupport implements
        MarksheetDAOInt {

    /**
    * Logger
    */
    private static Logger log = Logger.getLogger(MarksheetDAOHibImpl.class);

    /**
    * Add a Marksheet
    *
    * @param dto
    * @throws DatabaseException
    */
    public long add(MarksheetDTO dto) throws DatabaseException {
        log.debug("DAO add Started");
        long pk = 0;
        try {
            pk = (Long) getHibernateTemplate().save(dto);
        } catch (HibernateException e) {
            log.error("Database Exception..", e);
            throw new DatabaseException(
                    "Exception : Exception in add marksheet");
        }
        log.debug("DAO add End");
        return pk;
    }

    /**
    * Update a Marksheet
    *
    * @param dto
    * @throws DatabaseException
    */
    @Override
    public void update(MarksheetDTO dto) throws DatabaseException {
        log.debug("DAO update Started");
        try {
            getHibernateTemplate().update(dto);
        } catch (HibernateException e) {
            log.error("Database Exception..", e);
            throw new DatabaseException(
                    "Exception : Exception in update marksheet");
        }
        log.debug("DAO update End");
    }

    /**
    * Delete a Marksheet
    *
    * @param dto
    * @throws DatabaseException
    */
    @Override
    public void delete(MarksheetDTO dto) throws DatabaseException {
        log.debug("DAO delete Started");
        try {
            getHibernateTemplate().delete(dto);
        } catch (HibernateException e) {
            log.error("Database Exception..", e);
            throw new DatabaseException(
                    "Exception : Exception in delete marksheet");
        }
        log.debug("DAO delete End");
    }

    /**
    * Find Marksheet by Roll No
    *
    * @param rollNo
    *            : get parameter
    * @return dto
    * @throws DuplicateRecordException
    */
    @Override
    public MarksheetDTO findByRollNo(String rollNo) throws DatabaseException {
        log.debug("DAO findByRollNo Started");
        MarksheetDTO dto = null;
        try {
            DetachedCriteria criteria = DetachedCriteria
                    .forClass(MarksheetDTO.class);
            criteria.add(Restrictions.eq("rollNo", rollNo));
            List list = getHibernateTemplate().findByCriteria(criteria);
            if (list.size() == 1) {
                dto = (MarksheetDTO) list.get(0);
            }
        } catch (HibernateException e) {
            log.error("Database Exception..", e);
            throw new DatabaseException(
                    "Exception : Exception in getting marksheet by rollno");
        }
        log.debug("DAO findByRollNo End");
        return dto;
    }

    /**
    * Find Marksheet by PK
    *
    * @param pk
    *            : get parameter
    * @return dto
    * @throws DatabaseException
    */
    @Override
    public MarksheetDTO findByPK(long pk) throws DatabaseException {
        log.debug("DAO findByPK Started");
        MarksheetDTO dto = null;
        try {
            dto = (MarksheetDTO) getHibernateTemplate().get(MarksheetDTO.class,
                    pk);
        } catch (HibernateException e) {
            log.error("Database Exception..", e);
            throw new DatabaseException(
                    "Exception : Exception in getting marksheet by pk");
        }
        log.debug("DAO findByPK End");
        return dto;
    }

    /**
    * Search Marksheets
    *
    * @param dto
    *            : Search Parameters
    * @throws DatabaseException
    */
    @Override
    public List search(MarksheetDTO dto) throws DatabaseException {
        return search(dto, 0, 0);
    }

    /**
    * Search Marksheets with pagination
    *
    * @return list : List of Marksheets
    * @param dto
    *            : Search Parameters
    * @param pageNo
    *            : Current Page No.
    * @param pageSize
    *            : Size of Page
    * @throws DatabaseException
    */
    @Override
    public List search(MarksheetDTO dto, int pageNo, int pageSize)
            throws DatabaseException {
        log.debug("DAO search Started");
        List list = null;
        try {
            DetachedCriteria criteria = DetachedCriteria
                    .forClass(MarksheetDTO.class);
            if (dto.getId() > 0) {
                criteria.add(Restrictions.eq("id", dto.getId()));
            }
            if (dto.getRollNo() != null && dto.getRollNo().length() > 0) {
                criteria.add(Restrictions.eq("rollNo", dto.getRollNo()));
            }
            if (dto.getName() != null && dto.getName().length() > 0) {
                criteria.add(Restrictions.like("name", dto.getName() + "%"));
            }
            if (dto.getPhysics() != null && dto.getPhysics() > 0) {
                criteria.add(Restrictions.eq("physics", dto.getPhysics()));
            }
            if (dto.getChemistry() != null && dto.getChemistry() > 0) {
                criteria.add(Restrictions.eq("chemistry", dto.getChemistry()));
            }
            if (dto.getMaths() != null && dto.getMaths() > 0) {
                criteria.add(Restrictions.eq("maths", dto.getMaths()));
            }
            // if page size is greater than zero the apply pagination
            if (pageSize > 0) {
                list = getHibernateTemplate().findByCriteria(criteria,
                        ((pageNo - 1) * pageSize), pageSize);
            } else {
                list = getHibernateTemplate().findByCriteria(criteria);
            }
        } catch (HibernateException e) {
            log.error("Database Exception..", e);
            throw new DatabaseException("Exception in search marksheet ");
        }
        log.debug("DAO search End");
        return list;
    }

    /**
    * Get List of Marksheets
    *
    * @return list : List of Marksheets
    * @throws DatabaseException
    */
    @Override
    public List list() throws DatabaseException {
        return list(0, 0);
    }

    /**
    * Get List of Marksheets with pagination
    *
    * @return list : List of Marksheets
    * @param pageNo
    *            : Current Page No.
    * @param pageSize
    *            : Size of Page
    * @throws DatabaseException
    */
    public List list(int pageNo, int pageSize) throws DatabaseException {
        log.debug("DAO list Started");
        List list = null;
        try {
            DetachedCriteria criteria = DetachedCriteria
                    .forClass(MarksheetDTO.class);
            // if page size is greater than zero then apply pagination
            if (pageSize > 0) {
                list = getHibernateTemplate().findByCriteria(criteria,
                        ((pageNo - 1) * pageSize), pageSize);
            } else {
                list = getHibernateTemplate().findByCriteria(criteria);
            }
        } catch (HibernateException e) {
            log.error("Database Exception..", e);
            throw new DatabaseException(
                    "Exception : Exception in marksheet list");
        }
        log.debug("DAO list End");
        return list;
    }

    /**
    * Get Merit List of Marksheets with pagination
    *
    * @return list : List of Marksheets
    * @param pageNo
    *            : Current Page No
    * @param pageSize
    *            : Size of Page
    * @throws DatabaseException
    */
    @Override
    public List getMeritList(int pageNo, int pageSize) throws DatabaseException {
        log.debug("DAO getMeritList Started");
        List list = null;
        try {
            list = getHibernateTemplate()
                    .find("from MarksheetDTO order by (physics + chemistry + maths) desc");
        } catch (HibernateException e) {
            log.error("Database Exception..", e);
            throw new DatabaseException("Exception : Exception in meritlist");
        }
        log.debug("DAO getMeritList End");
        return list;
    }
}

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