NHibernate 3.2 için FreeTextExpression
[Serializable]
public class FreeTextExpression : AbstractCriterion
private readonly string _propertyName;
private readonly object _value;
private readonly IProjection _projection;
///
/// Initializes a new instance of the class.
///
///The projection. ///The value. public FreeTextExpression(IProjection projection, object value)
_projection = projection;
_value = value;
///
/// Initialize a new instance of the
/// class for a named Property and its value.
///
///The name of the Property in the class. ///The value for the Property. public FreeTextExpression(string propertyName, object value)
_propertyName = propertyName;
_value = value;
public override SqlString ToSqlString(ICriteria criteria, ICriteriaQuery criteriaQuery, IDictionary<string, IFilter> enabledFilters)
var sqlBuilder = new SqlStringBuilder();
var columnNames = CriterionUtil.GetColumnNames(_propertyName, _projection, criteriaQuery, criteria, enabledFilters);
if (columnNames.Length != 1)
throw new HibernateException(“Contains may only be used with single-column properties”);
sqlBuilder.Add(“freetext(“)
.Add(columnNames[0])
.Add(“,”);
sqlBuilder.Add(criteriaQuery.NewQueryParameter(GetParameterTypedValue(criteria, criteriaQuery)).Single());
sqlBuilder.Add(“)”);
return sqlBuilder.ToSqlString();
public override TypedValue[] GetTypedValues(ICriteria criteria, ICriteriaQuery criteriaQuery)
var typedValues = new List();
if (_projection != null)
typedValues.AddRange(_projection.GetTypedValues(criteria, criteriaQuery));
typedValues.Add(GetParameterTypedValue(criteria, criteriaQuery));
return typedValues.ToArray();
public TypedValue GetParameterTypedValue(ICriteria criteria, ICriteriaQuery criteriaQuery)
var matchValue = _value.ToString();
if (_projection != null)
return CriterionUtil.GetTypedValues(criteriaQuery, criteria, _projection, null, matchValue).Single();
return new TypedValue(NHibernateUtil.String, _value.ToString(), EntityMode.Poco);
public override IProjection[] GetProjections()
if (_projection != null)
return new [] _projection ;
return null;
public override string ToString()
return ” freetext(” + (_projection ?? (object)_propertyName) + “,” + _value + “)”;
NHibernate 3.2 için FreeTextExpression
