/// <summary>
/// Builds a <see cref="DetachedCriteria" /> from the given <see cref="IMorphableFlowQuery" /> query.
/// </summary>
/// <param name="query">
/// The query from which to build a <see cref="ICriteria" />.
/// </param>
/// <typeparam name="TSource">
/// The <see cref="System.Type" /> of the underlying entity for the given query.
/// </typeparam>
/// <returns>
/// The built <see cref="DetachedCriteria" />.
/// </returns>
public virtual DetachedCriteria Build <TSource>(IMorphableFlowQuery query)
{
if (query == null)
{
throw new ArgumentNullException("query");
}
DetachedCriteria criteria = DetachedCriteria.For <TSource>(query.Alias);
foreach (Join join in query.Joins)
{
criteria.CreateAlias(join.Property, join.Alias, join.JoinType, join.WithClause);
}
foreach (ICriterion criterion in query.Criterions)
{
criteria.Add(criterion);
}
foreach (Lock queryLock in query.Locks)
{
if (queryLock.Alias == null)
{
criteria.SetLockMode(queryLock.LockMode);
}
else
{
criteria.SetLockMode(queryLock.Alias, queryLock.LockMode);
}
}
bool skips = query.ResultsToSkip.HasValue && query.ResultsToSkip.Value > 0;
if (skips)
{
criteria.SetFirstResult(query.ResultsToSkip.Value);
}
bool takes = query.ResultsToTake.HasValue && query.ResultsToTake.Value > 0;
if (takes)
{
criteria.SetMaxResults(query.ResultsToTake.Value);
}
if (query.IsCacheable)
{
criteria.SetCacheable(true);
if (query.CacheMode.HasValue)
{
criteria.SetCacheMode(query.CacheMode.Value);
}
if (!string.IsNullOrEmpty(query.CacheRegion))
{
criteria.SetCacheRegion(query.CacheRegion);
}
}
criteria
.SetProjection
(
GetProjection(query)
);
if (query.ResultTransformer != null)
{
criteria.SetResultTransformer(query.ResultTransformer);
}
if (query.Orders.Count > 0 && (skips || takes))
{
foreach (OrderByStatement statement in query.Orders)
{
if (statement.IsBasedOnSource)
{
criteria.AddOrder(statement.Order);
}
}
}
return(criteria);
}
