Morphia DAO

import com.google.code.morphia.annotations.Entity;
import com.google.code.morphia.annotations.Id;

//////////// ENTITY //////////////////

@Entity("locales")
public class Locale implements Identity<Long>{

    @Id
    Long id;
    String code;
    String description;

    @Override
    public String toString() {
        return this.code;
    }

    @Override
    public boolean equals(Object other) {
        if (other != null && other instanceof Locale) {
            return id.equals(((Locale) other).getId());
        } else {
            return false;
        }
    }

    @Override
    public int hashCode() {
        int hash = 7;
        hash = 23 * hash + (this.id != null ? this.id.hashCode() : 0);
        return hash;
    }

    @Override
    public Long getId() {
        return this.id;
    }

    public String getCode() {
        return this.code;
    }

    public String getDescription() {
        return this.description;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public void setCode(String code) {
        this.code = code;
    }

    public void setDescription(String description) {
        this.description = description;
    }

    /**
     * Will convert a proper locale code (ab_xy), to the form (ab_XY).
     *
     * @param localeCode
     * @return
     */
    public static String convertLocaleCodeToCorrectCase(String localeCode) {
        if (localeCode == null) {
            return null;
        }

        int indexOfUnderscore = localeCode.indexOf('_');
        if (indexOfUnderscore != -1) {
            String language = localeCode.substring(0, indexOfUnderscore).toLowerCase();
            String region = localeCode.substring(indexOfUnderscore + 1).toUpperCase();

            return new StringBuilder(language).append("_").append(region).toString();
        }

        return localeCode;
    }
}

//////////// DAO //////////////////

public class MongoLocaleDao extends BasicDAO<Locale, Long> implements LocaleDao {

    public MongoLocaleDao(Mongo mongo, Morphia morphia, String dbName) {
        super(Locale.class, mongo, morphia, dbName);
    }

    @Override
    public Locale getLocale(Long id) {
        return get(id);
    }

    @Override
    public Locale getLocaleByCode(String code) {
        return find(createQuery().field("code").equal(code)).get();
    }

    @Override
    public Collection<Locale> getLocales() {
        return find().asList();
    }
}