自定义hibernate type

因为CountryCode是从其它系统导过来的，有时出现了空格，所以自定义了一个TrimmedString

 

<hibernate-mapping>
    <class name="au.com.at2.dictionaries.country.Country" table="COUNTRY" lazy="false">
        <id name="countryCode" column="CountryCode" type="au.com.at2.hibernate.TrimmedString " />

        <property name="countryName" column="CountryName"/>
        <property name="internationalPrefixCode" column="InternationalPrefixCode"/>
    </class>

    <query name="Country.findAll" cacheable="true"
           cache-region="/au/com/at2/dictionaries/AllCountries">
        from Country c order by c.countryName
   </query>
</hibernate-mapping>

 

public class TrimmedString implements UserType {
    public TrimmedString() {
        super();
    }

    public int[] sqlTypes() {
        return new int[] { Types.CHAR };
    }

    public Class returnedClass() {
        return String.class;
    }

    public boolean equals(Object x, Object y) throws HibernateException {
        return (x == y) || (x != null && y != null && (x.equals(y)));
    }

    public Object nullSafeGet(ResultSet rs, String[] names, Object owner)
            throws HibernateException, SQLException {
        String val = rs.getString(names[0]);
        return val != null ? val.trim() : null;
    }

    public void nullSafeSet(PreparedStatement st, Object value, int index)
            throws HibernateException, SQLException {
        String val = (String) value;
        st.setString(index, val != null ? val.trim() : null);
    }

    public Object deepCopy(Object value) throws HibernateException {
        if (value == null)
            return null;
        return new String((String) value);
    }

    public boolean isMutable() {
        return false;
    }

    public Object assemble(Serializable serializable, Object object)
            throws HibernateException {
        return serializable;
    }

    public Serializable disassemble(Object object) throws HibernateException {
        return (Serializable) object;
    }

    public int hashCode(Object object) throws HibernateException {
        return object.hashCode();
    }

    public Object replace(Object object, Object object1, Object object2)
            throws HibernateException {
        return object;
    }