/// <summary>
/// Returns to nhibernate the type of the parameters.
/// I need only one operator.
/// </summary>
/// <param name="criteria"></param>
/// <param name="criteriaQuery"></param>
/// <returns></returns>
public override NHibernate.Engine.TypedValue[] GetTypedValues(
NHibernate.ICriteria criteria,
NHibernate.Expressions.ICriteriaQuery criteriaQuery)
{
return(new TypedValue[] {
new TypedValue(GetITypeFromCLRType(mValueToCompareTo.GetType()), mValueToCompareTo)
});
}
/// <summary>
/// This is the real core function that build the fragment of sql needed
/// to build the criteria
/// </summary>
/// <param name="criteria"></param>
/// <param name="criteriaQuery"></param>
/// <param name="context"></param>
/// <returns></returns>
public override NHibernate.SqlCommand.SqlString ToSqlString(
NHibernate.ICriteria criteria,
NHibernate.Expressions.ICriteriaQuery criteriaQuery,
IDictionary <string, IFilter> enabledFilters)
{
//retrieve with projection the real name of the property.
String[] PropertyColumn = criteriaQuery.GetColumnsUsingProjection(
criteria, (String)mSqlFunctionParameter[mPropertyNamePosition]);
NHibernate.Dialect.Dialect dialect = criteriaQuery.Factory.Dialect;
mSqlFunctionParameter[mPropertyNamePosition] = PropertyColumn[0];
if (!dialect.Functions.ContainsKey(mFunction))
{
//throw new ApplicationException("Current dialect does not support " + mFunction + " function");
//Todo for now try to set the function but without the dialect.
return(CreateQueryString(
BuildUnknownExpression(mFunction, mSqlFunctionParameter)));
}
ISQLFunction func = (ISQLFunction)dialect.Functions[mFunction];
String functionResolved = func.Render(mSqlFunctionParameter, criteriaQuery.Factory);
//Now we have the cast operation required.
return(CreateQueryString(functionResolved));
}