private void PrepareForIndex( QueryTranslator q )
{
IQueryableCollection collPersister = q.GetCollectionPersister( collectionRole );
if( !collPersister.HasIndex )
{
throw new QueryException( "unindexed collection before []" );
}
string[ ] indexCols = collPersister.IndexColumnNames;
if( indexCols.Length != 1 )
{
throw new QueryException( "composite-index appears in []: " + path );
}
string[ ] keyCols = collPersister.KeyColumnNames;
JoinFragment ojf = q.CreateJoinFragment( useThetaStyleJoin );
ojf.AddCrossJoin( collPersister.TableName, collectionName );
ojf.AddFromFragmentString( join.ToFromFragmentString );
if( collPersister.IsOneToMany )
{
IQueryable persister = (IQueryable) collPersister.ElementPersister;
ojf.AddJoins(
( (IJoinable) persister).FromJoinFragment( collectionName, true, false ),
( (IJoinable) persister).WhereJoinFragment( collectionName, true, false )
);
}
if( !continuation )
{
AddJoin( collPersister.TableName, collectionName, keyCols );
}
join.AddCondition( collectionName, indexCols, " = " );
string[ ] eltCols = collPersister.ElementColumnNames;
CollectionElement elem = new CollectionElement();
elem.ElementColumns = StringHelper.Qualify( collectionName, eltCols );
elem.Type = collPersister.ElementType;
elem.IsOneToMany = collPersister.IsOneToMany;
elem.Alias = collectionName;
elem.Join = join;
collectionElements.Add( elem ); //addlast
SetExpectingCollectionIndex();
q.AddCollection( collectionName, collectionRole );
q.AddJoin( collectionName, ojf );
}
/// <summary>
///
/// </summary>
/// <param name="q"></param>
public void AddAssociation( QueryTranslator q )
{
q.AddJoin( Name, join );
}
private void AddJoin( JoinFragment ojf, QueryTranslator q )
{
JoinFragment fromClause = q.CreateJoinFragment( true );
fromClause.AddJoins( ojf.ToFromFragmentString, new SqlString( String.Empty ) );
q.AddJoin( pathExpressionParser.Name, fromClause );
//TODO: HACK with ToString()
AddToCurrentJoin( ojf.ToWhereFragmentString.ToString() );
}