/// <summary>
/// Get the aliased columns of the owning entity which are to
/// be used in the join
/// </summary>
public static string[] GetAliasedLHSColumnNames(
IAssociationType type,
string alias,
int property,
int begin,
IOuterJoinLoadable lhsPersister,
IMapping mapping
)
{
if (type.UseLHSPrimaryKey)
{
return StringHelper.Qualify(alias, lhsPersister.IdentifierColumnNames);
}
else
{
string propertyName = type.LHSPropertyName;
if (propertyName == null)
{
return ArrayHelper.Slice(
lhsPersister.ToColumns(alias, property),
begin,
type.GetColumnSpan(mapping)
);
}
else
{
return ((IPropertyMapping) lhsPersister).ToColumns(alias, propertyName); //bad cast
}
}
}
/// <summary>
/// For an entity class, add to a list of associations to be fetched by outerjoin
/// </summary>
/// <param name="persister"></param>
/// <param name="alias"></param>
/// <param name="associations"></param>
/// <param name="visitedPersisters"></param>
/// <param name="path"></param>
/// <param name="currentDepth"></param>
/// <param name="factory"></param>
private void WalkClassTree(
IOuterJoinLoadable persister,
string alias,
IList associations,
ISet visitedPersisters,
string path,
int currentDepth,
ISessionFactoryImplementor factory)
{
int n = persister.CountSubclassProperties();
for (int i = 0; i < n; i++)
{
IType type = persister.GetSubclassPropertyType(i);
if (type.IsAssociationType)
{
WalkAssociationTree(
( IAssociationType )type,
persister,
i,
alias,
associations,
visitedPersisters,
path,
currentDepth,
factory
);
}
else if (type.IsComponentType)
{
WalkComponentTree(
( IAbstractComponentType )type,
i,
persister.GetSubclassPropertyColumnNames(i),
persister.ToColumns(alias, i),
persister,
alias,
associations,
visitedPersisters,
SubPath(path, persister.GetSubclassPropertyName(i)),
currentDepth,
factory
);
}
}
}
private void WalkAssociationTree(
IAssociationType associationType,
IOuterJoinLoadable persister,
int propertyNumber,
string alias,
IList associations,
ISet visitedPersisters,
string path,
int currentDepth,
ISessionFactoryImplementor factory)
{
string[] aliasedForeignKeyColumns = GetAliasedForeignKeyColumns(persister, alias, associationType, persister.ToColumns(alias, propertyNumber));
string[] foreignKeyColumns = GetForeignKeyColumns(persister, associationType, persister.GetSubclassPropertyColumnNames(propertyNumber));
if (IsJoinedFetchAlwaysDisabled(persister, associationType, propertyNumber))
{
return;
}
string subpath = SubPath(path, persister.GetSubclassPropertyName(propertyNumber));
JoinType joinType = GetJoinType(
associationType,
persister.EnableJoinedFetch(propertyNumber),
subpath,
persister.GetSubclassPropertyTableName(propertyNumber),
foreignKeyColumns,
factory
);
if (joinType != JoinType.None)
{
WalkAssociationTree(
associationType,
aliasedForeignKeyColumns,
persister,
alias,
associations,
visitedPersisters,
subpath,
currentDepth,
joinType,
factory
);
}
}
/// <summary>
/// For an entity class, add to a list of associations to be fetched by outerjoin
/// </summary>
/// <param name="persister"></param>
/// <param name="alias"></param>
/// <param name="associations"></param>
/// <param name="visitedPersisters"></param>
/// <param name="path"></param>
/// <param name="currentDepth"></param>
/// <param name="factory"></param>
private void WalkClassTree(
IOuterJoinLoadable persister,
string alias,
IList associations,
ISet visitedPersisters,
string path,
int currentDepth,
ISessionFactoryImplementor factory )
{
int n = persister.CountSubclassProperties();
for( int i = 0; i < n; i++ )
{
IType type = persister.GetSubclassPropertyType( i );
if( type.IsAssociationType )
{
WalkAssociationTree(
( IAssociationType ) type,
persister,
i,
alias,
associations,
visitedPersisters,
path,
currentDepth,
factory
);
}
else if( type.IsComponentType )
{
WalkComponentTree(
( IAbstractComponentType ) type,
i,
persister.GetSubclassPropertyColumnNames( i ),
persister.ToColumns( alias, i ),
persister,
alias,
associations,
visitedPersisters,
SubPath( path, persister.GetSubclassPropertyName( i ) ),
currentDepth,
factory
);
}
}
}
private void WalkAssociationTree(
IAssociationType associationType,
IOuterJoinLoadable persister,
int propertyNumber,
string alias,
IList associations,
ISet visitedPersisters,
string path,
int currentDepth,
ISessionFactoryImplementor factory )
{
string[] aliasedForeignKeyColumns = GetAliasedForeignKeyColumns( persister, alias, associationType, persister.ToColumns( alias, propertyNumber ) );
string[] foreignKeyColumns = GetForeignKeyColumns( persister, associationType, persister.GetSubclassPropertyColumnNames( propertyNumber ) );
if ( IsJoinedFetchAlwaysDisabled( persister, associationType, propertyNumber ) )
{
return;
}
string subpath = SubPath( path, persister.GetSubclassPropertyName( propertyNumber ) );
JoinType joinType = GetJoinType(
associationType,
persister.EnableJoinedFetch( propertyNumber ),
subpath,
persister.GetSubclassPropertyTableName( propertyNumber ),
foreignKeyColumns,
factory
);
if ( joinType != JoinType.None )
{
WalkAssociationTree(
associationType,
aliasedForeignKeyColumns,
persister,
alias,
associations,
visitedPersisters,
subpath,
currentDepth,
joinType,
factory
);
}
}
