private void AddJoin(JoinSequence joinSequence, QueryTranslator q)
{
q.AddFromJoinOnly(pathExpressionParser.Name, joinSequence);
try
{
AddToCurrentJoin(joinSequence.ToJoinFragment(q.EnabledFilters, true).ToWhereFragmentString);
}
catch (MappingException me)
{
throw new QueryException(me);
}
}
private void AddJoinNodes(QueryNode query, JoinSequence join, FromElement fromElement)
{
JoinFragment joinFragment = join.ToJoinFragment(
_walker.EnabledFilters,
fromElement.UseFromFragment || fromElement.IsDereferencedBySuperclassOrSubclassProperty,
fromElement.WithClauseFragment,
fromElement.WithClauseJoinAlias
);
SqlString frag = joinFragment.ToFromFragmentString;
SqlString whereFrag = joinFragment.ToWhereFragmentString;
// If the from element represents a JOIN_FRAGMENT and it is
// a theta-style join, convert its type from JOIN_FRAGMENT
// to FROM_FRAGMENT
if (fromElement.Type == HqlSqlWalker.JOIN_FRAGMENT &&
(join.IsThetaStyle || StringHelper.IsNotEmpty(whereFrag)))
{
fromElement.Type = HqlSqlWalker.FROM_FRAGMENT;
fromElement.JoinSequence.SetUseThetaStyle(true); // this is used during SqlGenerator processing
}
// If there is a FROM fragment and the FROM element is an explicit, then add the from part.
if (fromElement.UseFromFragment /*&& StringHelper.isNotEmpty( frag )*/)
{
SqlString fromFragment = ProcessFromFragment(frag, join).Trim();
if (log.IsDebugEnabled)
{
log.Debug("Using FROM fragment [" + fromFragment + "]");
}
ProcessDynamicFilterParameters(
fromFragment,
fromElement,
_walker
);
}
_syntheticAndFactory.AddWhereFragment(
joinFragment,
whereFrag,
query,
fromElement,
_walker
);
}
public static string CreateCollectionSubquery(
JoinSequence joinSequence,
IDictionary <string, IFilter> enabledFilters,
String[] columns)
{
try
{
JoinFragment join = joinSequence.ToJoinFragment(enabledFilters, true);
return(new StringBuilder()
.Append("select ")
.Append(StringHelper.Join(", ", columns))
.Append(" from ")
.Append(join.ToFromFragmentString.Substring(2)) // remove initial ", "
.Append(" where ")
.Append(join.ToWhereFragmentString.Substring(5)) // remove initial " and "
.ToString());
}
catch (MappingException me)
{
throw new QueryException(me);
}
}
public void Token(string token, QueryTranslator q)
{
if (token != null)
{
path.Append(token);
}
string alias = q.GetPathAlias(path.ToString());
if (alias != null)
{
Reset(q); //reset the dotcount (but not the path)
currentName = alias; //after reset!
currentPropertyMapping = q.GetPropertyMapping(currentName);
if (!ignoreInitialJoin)
{
JoinSequence ojf = q.GetPathJoin(path.ToString());
try
{
joinSequence.AddCondition(ojf.ToJoinFragment(q.EnabledFilters, true).ToWhereFragmentString); //after reset!
}
catch (MappingException me)
{
throw new QueryException(me);
}
// we don't need to worry about any condition in the ON clause
// here (toFromFragmentString), since anything in the ON condition
// is already applied to the whole query
}
}
else if (".".Equals(token))
{
dotcount++;
}
else
{
if (dotcount == 0)
{
if (!continuation)
{
if (!q.IsName(token))
{
throw new QueryException("undefined alias or unknown mapping: " + token);
}
currentName = token;
currentPropertyMapping = q.GetPropertyMapping(currentName);
}
}
else if (dotcount == 1)
{
if (currentName != null)
{
currentProperty = token;
}
else if (collectionName != null)
{
//IQueryableCollection p = q.GetCollectionPersister( collectionRole );
//DoCollectionProperty( token, p, collectionName );
continuation = false;
}
else
{
throw new QueryException("unexpected");
}
}
else
{
// dotcount>=2
// Do the corresponding RHS
IType propertyType = PropertyType;
if (propertyType == null)
{
throw new QueryException("unresolved property: " + currentProperty);
}
if (propertyType.IsComponentType)
{
DereferenceComponent(token);
}
else if (propertyType.IsEntityType)
{
DereferenceEntity(token, (EntityType)propertyType, q);
}
else if (propertyType.IsCollectionType)
{
DereferenceCollection(token, ((CollectionType)propertyType).Role, q);
}
else if (token != null)
{
throw new QueryException("dereferenced: " + currentProperty);
}
}
}
}