NHibernate 3.2 için FreeTextExpression

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