/// <summary>
/// Constructs StandardProperty instances.
/// </summary>
/// <param name="name">The name by which the property can be referenced within
/// its owner.</param>
/// <param name="node">The node name to use for XML-based representation of this
/// property.</param>
/// <param name="type">The Hibernate Type of this property.</param>
/// <param name="lazy">Should this property be handled lazily?</param>
/// <param name="insertable">Is this property an insertable value?</param>
/// <param name="updateable">Is this property an updateable value?</param>
/// <param name="insertGenerated">Is this property generated in the database on insert?</param>
/// <param name="updateGenerated">Is this property generated in the database on update?</param>
/// <param name="nullable">Is this property a nullable value?</param>
/// <param name="checkable">Is this property a checkable value?</param>
/// <param name="versionable">Is this property a versionable value?</param>
/// <param name="cascadeStyle">The cascade style for this property's value.</param>
public StandardProperty(
String name,
String node,
IType type,
bool lazy,
bool insertable,
bool updateable,
bool insertGenerated,
bool updateGenerated,
bool nullable,
bool checkable,
bool versionable,
Cascades.CascadeStyle cascadeStyle)
: base(name, node, type)
{
this.lazy = lazy;
this.insertable = insertable;
this.updateable = updateable;
this.insertGenerated = insertGenerated;
this.updateGenerated = updateGenerated;
this.nullable = nullable;
this.dirtyCheckable = checkable;
this.versionable = versionable;
this.cascadeStyle = cascadeStyle;
}
/// <summary>
/// Disable outer join fetching if this loader obtains an
/// upgrade lock mode
/// </summary>
protected override bool IsJoinedFetchEnabled(IAssociationType type, FetchMode config,
Cascades.CascadeStyle cascadeStyle)
{
return lockMode.GreaterThan(LockMode.Read) ?
false :
base.IsJoinedFetchEnabled(type, config, cascadeStyle);
}
public CascadeEntityJoinWalker(IOuterJoinLoadable persister, Cascades.CascadingAction action,
ISessionFactoryImplementor factory)
: base(persister, factory, CollectionHelper.EmptyMap)
{
this.cascadeAction = action;
SqlStringBuilder whereCondition = WhereString(Alias, persister.IdentifierColumnNames, persister.IdentifierType, 1)
//include the discriminator and class-level where, but not filters
.Add(persister.FilterFragment(Alias, CollectionHelper.EmptyMap));
InitAll(whereCondition.ToSqlString(), "", LockMode.Read);
}
public DynamicComponentType(
string[ ] propertyNames,
IType[ ] propertyTypes,
OuterJoinFetchStrategy[ ] joinedFetch,
Cascades.CascadeStyle[ ] cascade
)
{
this.propertyNames = propertyNames;
this.propertyTypes = propertyTypes;
this.joinedFetch = joinedFetch;
this.cascade = cascade;
propertySpan = propertyTypes.Length;
}
protected override JoinType GetJoinType(
IAssociationType type,
FetchMode config,
string path,
string lhsTable,
string[] lhsColumns,
bool nullable,
int currentDepth,
Cascades.CascadeStyle cascadeStyle)
{
if (translator.IsJoin(path))
{
return translator.GetJoinType(path);
}
else
{
if (translator.HasProjection)
{
return JoinType.None;
}
else
{
FetchMode fetchMode = translator.RootCriteria
.GetFetchMode(path);
if (IsDefaultFetchMode(fetchMode))
{
return base.GetJoinType(
type,
config,
path,
lhsTable,
lhsColumns,
nullable,
currentDepth, cascadeStyle
);
}
else
{
if (fetchMode == FetchMode.Join)
{
IsDuplicateAssociation(lhsTable, lhsColumns, type); //deliberately ignore return value!
return GetJoinType(nullable, currentDepth);
}
else
{
return JoinType.None;
}
}
}
}
}
/// <summary>
/// Construct a virtual IdentifierProperty.
/// </summary>
/// <param name="type">The Hibernate Type for the identifier property.</param>
/// <param name="embedded">Is this an embedded identifier.</param>
/// <param name="unsavedValue">The value which, if found as the value on the identifier
/// property, represents new (i.e., un-saved) instances of the owning entity.</param>
/// <param name="identifierGenerator">The generator to use for id value generation.</param>
public IdentifierProperty(
IType type,
bool embedded,
Cascades.IdentifierValue unsavedValue,
IIdentifierGenerator identifierGenerator)
: base(null, null, type)
{
this.isVirtual = true;
this.embedded = embedded;
this.unsavedValue = unsavedValue;
this.identifierGenerator = identifierGenerator;
this.identifierAssignedByInsert = identifierGenerator is IdentityGenerator;
// TODO H3: identifierGenerator is PostInsertIdentifierGenerator;
}
public ComponentType(System.Type componentClass,
string[] propertyNames,
IGetter[] propertyGetters,
ISetter[] propertySetters,
// currently not used, see the comment near the end of the method body
bool foundCustomAcessor,
IType[] propertyTypes,
bool[] nullabilities,
FetchMode[] joinedFetch,
Cascades.CascadeStyle[] cascade,
string parentProperty)
{
this.componentClass = componentClass;
this.propertyTypes = propertyTypes;
this.propertyNullability = nullabilities;
propertySpan = propertyNames.Length;
getters = propertyGetters;
setters = propertySetters;
string[] getterNames = new string[propertySpan];
string[] setterNames = new string[propertySpan];
System.Type[] propTypes = new System.Type[propertySpan];
for (int i = 0; i < propertySpan; i++)
{
getterNames[i] = getters[i].PropertyName;
setterNames[i] = setters[i].PropertyName;
propTypes[i] = getters[i].ReturnType;
}
if (parentProperty == null)
{
parentSetter = null;
parentGetter = null;
}
else
{
IPropertyAccessor pa = PropertyAccessorFactory.GetPropertyAccessor(null);
parentSetter = pa.GetSetter(componentClass, parentProperty);
parentGetter = pa.GetGetter(componentClass, parentProperty);
}
this.propertyNames = propertyNames;
this.cascade = cascade;
this.joinedFetch = joinedFetch;
if (Environment.UseReflectionOptimizer)
{
// NH: reflection optimizer works with custom accessors
this.optimizer = Environment.BytecodeProvider.GetReflectionOptimizer(componentClass, getters, setters);
}
}
public DynamicComponentType(
string[] propertyNames,
IType[] propertyTypes,
bool[] nullabilities,
FetchMode[] joinedFetch,
Cascades.CascadeStyle[] cascade
)
{
this.propertyNames = propertyNames;
this.propertyTypes = propertyTypes;
this.propertyNullability = nullabilities;
this.joinedFetch = joinedFetch;
this.cascade = cascade;
propertySpan = propertyTypes.Length;
}
/// <summary>
/// Constructs VersionProperty instances.
/// </summary>
/// <param name="name">The name by which the property can be referenced within
/// its owner.</param>
/// <param name="node">The node name to use for XML-based representation of this
/// property.</param>
/// <param name="type">The Hibernate Type of this property.</param>
/// <param name="lazy">Should this property be handled lazily?</param>
/// <param name="insertable">Is this property an insertable value?</param>
/// <param name="updateable">Is this property an updateable value?</param>
/// <param name="insertGenerated">Is this property generated in the database on insert?</param>
/// <param name="updateGenerated">Is this property generated in the database on update?</param>
/// <param name="nullable">Is this property a nullable value?</param>
/// <param name="checkable">Is this property a checkable value?</param>
/// <param name="versionable">Is this property a versionable value?</param>
/// <param name="cascadeStyle">The cascade style for this property's value.</param>
/// <param name="unsavedValue">The value which, if found as the value of
/// this (i.e., the version) property, represents new (i.e., un-saved)
/// instances of the owning entity.</param>
public VersionProperty(
string name,
string node,
IType type,
bool lazy,
bool insertable,
bool updateable,
bool insertGenerated,
bool updateGenerated,
bool nullable,
bool checkable,
bool versionable,
Cascades.CascadeStyle cascadeStyle,
Cascades.VersionValue unsavedValue)
: base(
name, node, type, lazy, insertable, updateable, insertGenerated, updateGenerated, nullable, checkable, versionable,
cascadeStyle)
{
this.unsavedValue = unsavedValue;
}
private object SaveWithGeneratedIdentifier( object obj, Cascades.CascadingAction action, object anything )
{
IClassPersister persister = GetPersister( obj );
try
{
object id = persister.IdentifierGenerator.Generate( this, obj );
if( id == null )
{
throw new IdentifierGenerationException( string.Format( "null id generated for: {0}", obj.GetType().FullName ) );
}
else if( id == IdentifierGeneratorFactory.ShortCircuitIndicator )
{
return GetIdentifier( obj ); //yick!!
}
else if( id == IdentifierGeneratorFactory.IdentityColumnIndicator )
{
return DoSave( obj, null, persister, true, action, anything );
}
else
{
if( log.IsDebugEnabled )
{
log.Debug( string.Format( "generated identifier: {0}", id ) );
}
return DoSave( obj, id, persister, false, action, anything );
}
}
catch( HibernateException )
{
// Do not call Convert on HibernateExceptions
throw;
}
catch( Exception ex )
{
throw Convert( ex, "Could not save object" );
}
}
protected override bool IsJoinedFetchEnabled(IAssociationType type, FetchMode config,
Cascades.CascadeStyle cascadeStyle)
{
return (type.IsEntityType || type.IsCollectionType) &&
(cascadeStyle == null || cascadeStyle.DoCascade(cascadeAction));
}
private object DoSave(
object theObj,
Key key,
IClassPersister persister,
bool replicate,
bool useIdentityColumn,
Cascades.CascadingAction cascadeAction,
object anything )
{
if( persister.ImplementsValidatable )
{
( ( IValidatable ) theObj ).Validate();
}
object id;
if( useIdentityColumn )
{
id = null;
ExecuteInserts();
}
else
{
id = key.Identifier;
}
// Put a placeholder in entries, so we don't recurse back to try and Save() the
// same object again. QUESTION: Should this be done before OnSave() is called?
// likewise, should it be done before OnUpdate()?
AddEntry( theObj, Status.Saving, null, id, null, LockMode.Write, useIdentityColumn, persister, false ); // okay if id is null here
// cascade-save to many-to-one BEFORE the parent is saved
cascading++;
try
{
Cascades.Cascade( this, persister, theObj, cascadeAction, CascadePoint.CascadeBeforeInsertAfterDelete, anything );
}
finally
{
cascading--;
}
object[ ] values = persister.GetPropertyValues( theObj );
IType[ ] types = persister.PropertyTypes;
bool substitute = false;
if( !replicate )
{
substitute = interceptor.OnSave( theObj, id, values, persister.PropertyNames, types );
// Keep the existing version number in the case of replicate!
if( persister.IsVersioned )
{
// IsUnsavedVersion bit below is NHibernate-specific
substitute = Versioning.SeedVersion(
values, persister.VersionProperty, persister.VersionType, persister.IsUnsavedVersion( values )
) || substitute;
}
}
if( persister.HasCollections )
{
// TODO: make OnReplicateVisitor extend WrapVisitor
if( replicate )
{
OnReplicateVisitor visitor = new OnReplicateVisitor( this, id );
visitor.ProcessValues( values, types );
}
WrapVisitor visitor2 = new WrapVisitor( this );
// substitutes into values by side-effect
visitor2.ProcessValues( values, types );
substitute = substitute || visitor2.IsSubstitutionRequired;
}
if( substitute )
{
persister.SetPropertyValues( theObj, values );
}
TypeFactory.DeepCopy( values, types, persister.PropertyUpdateability, values );
NullifyTransientReferences( values, types, useIdentityColumn, theObj );
CheckNullability( values, persister, false );
if( useIdentityColumn )
{
ScheduledIdentityInsertion insert = new ScheduledIdentityInsertion( values, theObj, persister, this );
Execute( insert );
id = insert.GeneratedId;
persister.SetIdentifier( theObj, id );
key = new Key( id, persister );
CheckUniqueness( key, theObj );
}
object version = Versioning.GetVersion( values, persister );
AddEntity( key, theObj );
AddEntry( theObj, Status.Loaded, values, id, version, LockMode.Write, useIdentityColumn, persister, replicate );
nonExists.Remove( key );
if( !useIdentityColumn )
{
insertions.Add( new ScheduledInsertion( id, values, theObj, version, persister, this ) );
}
// cascade-save to collections AFTER the collection owner was saved
cascading++;
try
{
Cascades.Cascade( this, persister, theObj, cascadeAction, CascadePoint.CascadeAfterInsertBeforeDelete, anything );
}
finally
{
cascading--;
}
return id;
}
/// <summary>
/// Get the join type (inner, outer, etc) or -1 if the
/// association should not be joined. Override on
/// subclasses.
/// </summary>
protected virtual JoinType GetJoinType(
IAssociationType type,
FetchMode config,
String path,
String lhsTable,
String[] lhsColumns,
bool nullable,
int currentDepth,
Cascades.CascadeStyle cascadeStyle)
{
if (!IsJoinedFetchEnabled(type, config, cascadeStyle))
{
return JoinType.None;
}
if (IsTooDeep(currentDepth) || IsTooManyCollections())
{
return JoinType.None;
}
bool dupe = IsDuplicateAssociation(lhsTable, lhsColumns, type);
if (dupe)
{
return JoinType.None;
}
return GetJoinType(nullable, currentDepth);
}
/// <summary>
/// We can use an inner join for first many-to-many association
/// </summary>
protected JoinType GetJoinType(
IAssociationType type,
FetchMode config,
String path,
ISet visitedAssociations,
string lhsTable,
string[] lhsColumns,
bool nullable,
int currentDepth,
Cascades.CascadeStyle cascadeStyle)
{
JoinType joinType = base.GetJoinType(
type,
config,
path,
lhsTable,
lhsColumns,
nullable,
currentDepth,
cascadeStyle
);
//we can use an inner join for the many-to-many
if (joinType == JoinType.LeftOuterJoin && "".Equals(path))
{
joinType = JoinType.InnerJoin;
}
return joinType;
}
/// <summary>
/// The superclass deliberately excludes collections
/// </summary>
protected override bool IsJoinedFetchEnabled(IAssociationType type, FetchMode config,
Cascades.CascadeStyle cascadeStyle)
{
return IsJoinedFetchEnabledInMapping(config, type);
}
private object DoSave(
object obj,
object id,
IClassPersister persister,
bool useIdentityColumn,
Cascades.CascadingAction cascadeAction,
object anything )
{
if( log.IsDebugEnabled )
{
log.Debug( "saving " + MessageHelper.InfoString( persister, id ) );
}
Key key;
if( useIdentityColumn )
{
// if the id is generated by the database, we assign the key later
key = null;
}
else
{
key = new Key( id, persister );
object old = GetEntity( key );
if( old != null )
{
EntityEntry e = GetEntry( old );
if( e.Status == Status.Deleted )
{
ForceFlush( e );
}
else
{
throw new NonUniqueObjectException( id, persister.MappedClass );
}
}
persister.SetIdentifier( obj, id );
}
// Sub-insertions should occur before containing insertsion so
// Try to do the callback not
if( persister.ImplementsLifecycle )
{
log.Debug( "calling OnSave()" );
if( ( ( ILifecycle ) obj ).OnSave( this ) == LifecycleVeto.Veto )
{
log.Debug( "insertion vetoed by OnSave()" );
return id;
}
}
return DoSave( obj, key, persister, false, useIdentityColumn, cascadeAction, anything );
}
public override ICollection CascadableChildrenCollection(PersistentCollectionType collectionType, object collection)
{
return(Cascades.GetLoadedElementsCollection(collectionType, collection));
}
public override ICollection CascadableChildrenCollection(PersistentCollectionType collectionType, object collection)
{
// saves / updates don't cascade to uninitialized collections
return(Cascades.GetLoadedElementsCollection(collectionType, collection));
}
/// <summary>
/// Override on subclasses to enable or suppress joining
/// of certain association types
/// </summary>
protected virtual bool IsJoinedFetchEnabled(IAssociationType type, FetchMode config,
Cascades.CascadeStyle cascadeStyle)
{
return type.IsEntityType && IsJoinedFetchEnabledInMapping(config, type);
}
