public LazyClientQueryResult(Transaction trans, ClientObjectContainer client, int
queryResultID) : base(trans)
{
_client = client;
_queryResultID = queryResultID;
_iterator = new LazyClientIdIterator(this);
}
public override int InstanceCount(ClassMetadata clazz, Transaction trans)
{
lock (Lock())
{
return clazz.IndexEntryCount(trans);
}
}
public override void Write(Transaction trans, ClassMetadata clazz, ClassAspect aspect
, ByteArrayBuffer writer)
{
writer.WriteShortString(trans, aspect.GetName());
if (!(aspect is FieldMetadata))
{
return;
}
FieldMetadata field = (FieldMetadata)aspect;
field.Alive();
if (field.IsVirtual())
{
return;
}
ITypeHandler4 handler = field.GetHandler();
if (handler is StandardReferenceTypeHandler)
{
// TODO: ensure there is a test case, to make this happen
if (((StandardReferenceTypeHandler)handler).ClassMetadata().GetID() == 0)
{
trans.Container().NeedsUpdate(clazz);
}
}
writer.WriteInt(field.FieldTypeID());
BitMap4 bitmap = new BitMap4(3);
bitmap.Set(0, field.IsPrimitive());
bitmap.Set(1, Handlers4.HandlesArray(handler));
bitmap.Set(2, Handlers4.HandlesMultidimensionalArray(handler));
// keep the order
writer.WriteByte(bitmap.GetByte(0));
}
public virtual void Release(ShutdownMode mode, Transaction transaction, bool rollbackOnClose
)
{
lock (_mainContainer.Lock())
{
ClientTransactionPool.ContainerCount entry = (ClientTransactionPool.ContainerCount
)_transaction2Container.Get(transaction);
entry.Container().CloseTransaction(transaction, false, mode.IsFatal() ? false : rollbackOnClose
);
_transaction2Container.Remove(transaction);
entry.Release();
if (entry.IsEmpty())
{
_fileName2Container.Remove(entry.FileName());
try
{
entry.Close(mode);
}
catch (Exception t)
{
// If we are in fatal ShutdownMode close will
// throw but we want to continue shutting down
// all entries.
Sharpen.Runtime.PrintStackTrace(t);
}
}
}
}
public StatefulBuffer(Transaction trans, int initialBufferSize
)
{
_trans = trans;
_length = initialBufferSize;
_buffer = new byte[_length];
}
public override object GetOrCreate(Transaction a_trans, object a_OnObject)
{
// This is the first part of marshalling
// Virtual fields do it all in #marshall(), the object is never used.
// Returning any object here prevents triggering null handling.
return AnyObject;
}
public virtual bool Dispatch(Transaction trans, object obj, int eventID)
{
if (methods[eventID] == null)
{
return true;
}
object[] parameters = new object[] { trans.ObjectContainer() };
ObjectContainerBase container = trans.Container();
int stackDepth = container.StackDepth();
int topLevelCallId = container.TopLevelCallId();
container.StackDepth(0);
try
{
object res = methods[eventID].Invoke(obj, parameters);
if (res is bool)
{
return ((bool)res);
}
}
finally
{
container.StackDepth(stackDepth);
container.TopLevelCallId(topLevelCallId);
}
return true;
}
public virtual object CreateDefault(Transaction a_trans)
{
BlobImpl bi = null;
bi = (BlobImpl)this.MemberwiseClone();
bi.SetTrans(a_trans);
return bi;
}
private void EnsureSingleOccurence(Transaction trans, IObjectInfoCollection col)
{
IEnumerator i = col.GetEnumerator();
while (i.MoveNext())
{
IObjectInfo objectInfo = (IObjectInfo)i.Current;
if (this.ReflectClass() != this._enclosing.ReflectorFor(trans, objectInfo.GetObject
()))
{
continue;
}
object obj = this.ObjectFor(trans, objectInfo);
object fieldValue = this.FieldMetadata().GetOn(trans, obj);
if (fieldValue == null)
{
continue;
}
IBTreeRange range = this.FieldMetadata().Search(trans, fieldValue);
if (range.Size() > 1)
{
throw new UniqueFieldValueConstraintViolationException(this.ClassMetadata().GetName
(), this.FieldMetadata().GetName());
}
}
}
internal QConClass(Transaction trans, QCon parent, QField field, IReflectClass claxx
) : base(trans, parent, field, null)
{
// C/S
if (claxx != null)
{
ObjectContainerBase container = trans.Container();
_classMetadata = container.ClassMetadataForReflectClass(claxx);
if (_classMetadata == null)
{
// could be an aliased class, try to resolve.
string className = claxx.GetName();
string aliasRunTimeName = container.Config().ResolveAliasStoredName(className);
if (!className.Equals(aliasRunTimeName))
{
_classMetadata = container.ClassMetadataForName(aliasRunTimeName);
}
}
if (claxx.Equals(container._handlers.IclassObject))
{
_classMetadata = (ClassMetadata)_classMetadata.TypeHandler();
}
}
_claxx = claxx;
}
protected virtual void Remove(Transaction transaction, int[] keys)
{
for (var i = 0; i < keys.Length; i++)
{
Remove(transaction, keys[i]);
}
}
public StatefulBuffer(Db4objects.Db4o.Internal.Transaction trans, int initialBufferSize
)
{
_trans = trans;
_length = initialBufferSize;
_buffer = new byte[_length];
}
public _IRunnable_50(EventRegistryImpl _enclosing, Transaction transaction, IQuery
query)
{
this._enclosing = _enclosing;
this.transaction = transaction;
this.query = query;
}
public override void TraverseAll(Transaction ta, IVisitor4 command)
{
if (_btreeIndex != null)
{
_btreeIndex.TraverseKeys(ta, command);
}
}
public BTree(Transaction trans, BTreeConfiguration config, int id, IIndexable4 keyHandler
, int treeNodeSize) : base(config._idSystem)
{
_config = config;
if (null == keyHandler)
{
throw new ArgumentNullException();
}
_nodeSize = treeNodeSize;
_nodeCache = CacheFactory.NewLRUIntCache(config._cacheSize);
_halfNodeSize = _nodeSize / 2;
_nodeSize = _halfNodeSize * 2;
_keyHandler = keyHandler;
SetID(id);
if (IsNew())
{
SetStateDirty();
_root = new BTreeNode(this, 0, true, 0, 0, 0);
_root.Write(trans.SystemTransaction());
AddNode(_root);
Write(trans.SystemTransaction());
}
else
{
SetStateDeactivated();
}
}
public MsgD GetWriterForByte(Transaction trans
, byte b)
{
var msg = GetWriterForLength(trans, 1);
msg._payLoad.WriteByte(b);
return msg;
}
public Db4objects.Db4o.CS.Internal.Messages.MsgD GetWriterForByte(Transaction trans
, byte b)
{
Db4objects.Db4o.CS.Internal.Messages.MsgD msg = GetWriterForLength(trans, 1);
msg._payLoad.WriteByte(b);
return msg;
}
public static void AssertEmpty(Transaction transaction, BTree tree)
{
ExpectingVisitor visitor = new ExpectingVisitor(new object[0]);
tree.TraverseKeys(transaction, visitor);
visitor.AssertExpectations();
Assert.AreEqual(0, tree.Size(transaction));
}
protected virtual void Rename(Transaction transaction, string from, string to)
{
var item = Query(transaction, from);
Assert.IsNotNull(item);
item.name = to;
Container().Store(transaction, item);
}
public virtual Db4objects.Db4o.Internal.VirtualAttributes VirtualAttributes(Db4objects.Db4o.Internal.Transaction
trans, bool lastCommitted)
{
if (trans == null)
{
return(_virtualAttributes);
}
lock (trans.Container().Lock())
{
if (_virtualAttributes == null)
{
if (_class.HasVirtualAttributes())
{
_virtualAttributes = new Db4objects.Db4o.Internal.VirtualAttributes();
_class.ReadVirtualAttributes(trans, this, lastCommitted);
}
}
else
{
if (!_virtualAttributes.SuppliesUUID())
{
if (_class.HasVirtualAttributes())
{
_class.ReadVirtualAttributes(trans, this, lastCommitted);
}
}
}
return(_virtualAttributes);
}
}
public FrozenObjectInfo(Transaction trans, ObjectReference @ref, bool committed) :
this(@ref, IsInstantiatedReference(@ref)
? @ref.VirtualAttributes(trans, committed
)
: null)
{
}
public StatefulBuffer(Db4objects.Db4o.Internal.Transaction trans, int initialBufferSize
)
{
_trans = trans;
_length = initialBufferSize;
_buffer = new byte[_length];
}
public virtual void InitOnUp(Transaction systemTrans, FieldMetadata fieldMetadata
)
{
ObjectContainerBase anyStream = systemTrans.Container();
if (!anyStream.MaintainsIndices())
{
return;
}
if (!fieldMetadata.SupportsIndex())
{
Indexed(false);
}
TernaryBool indexedFlag = _config.GetAsTernaryBool(IndexedKey);
if (indexedFlag.DefiniteNo())
{
fieldMetadata.DropIndex((LocalTransaction)systemTrans);
return;
}
if (UseExistingIndex(systemTrans, fieldMetadata))
{
return;
}
if (!indexedFlag.DefiniteYes())
{
return;
}
fieldMetadata.CreateIndex();
}
private void UnmarshallParent(Db4objects.Db4o.Internal.Transaction a_trans)
{
if (i_parent != null)
{
i_parent.Unmarshall(a_trans);
}
}
public virtual void ReadTypeInfo(Transaction trans, IReadBuffer buffer, ArrayInfo
info, int classID)
{
BitMap4 typeInfoBitmap = new BitMap4(buffer.ReadByte());
info.Primitive(typeInfoBitmap.IsTrue(0));
info.Nullable(typeInfoBitmap.IsTrue(1));
}
protected virtual void Add(Transaction transaction, int[] keys)
{
for (int i = 0; i < keys.Length; i++)
{
Add(transaction, keys[i]);
}
}
public UnmarshallingContext(Transaction transaction, ByteArrayBuffer buffer, ObjectReference
@ref, int addToIDTree, bool checkIDTree) : base(transaction, buffer, null, @ref
)
{
_addToIDTree = addToIDTree;
_checkIDTree = checkIDTree;
}
public override object Rollback(Transaction trans, BTree btree)
{
if (_transaction == trans)
{
return RolledBack(btree);
}
return this;
}
internal QConPath(Transaction a_trans, QCon a_parent, QField a_field) : base(a_trans
, a_parent, a_field, null)
{
if (a_field != null)
{
_classMetadata = a_field.GetFieldType();
}
}
protected virtual bool ObjectCanUpdate(Db4objects.Db4o.Internal.Transaction transaction
, object obj)
{
ObjectContainerBase container = transaction.Container();
return(container.Callbacks().ObjectCanUpdate(transaction, this) && _class.DispatchEvent
(transaction, obj, EventDispatchers.CanUpdate));
}
public _IProcedure4_39(ClassMarshaller _enclosing, Transaction trans, ClassMetadata
clazz, ByteArrayBuffer writer)
{
this._enclosing = _enclosing;
this.trans = trans;
this.clazz = clazz;
this.writer = writer;
}
public Transaction(ObjectContainerBase container, Db4objects.Db4o.Internal.Transaction
systemTransaction, IReferenceSystem referenceSystem)
{
// contains DeleteInfo nodes
_container = container;
_systemTransaction = systemTransaction;
_referenceSystem = referenceSystem;
}
private void ObjectOnNew(Db4objects.Db4o.Internal.Transaction transaction, object
obj)
{
ObjectContainerBase container = transaction.Container();
container.Callbacks().ObjectOnNew(transaction, this);
_class.DispatchEvent(transaction, obj, EventDispatchers.New);
}
public Db4objects.Db4o.CS.Internal.Messages.MsgD GetWriterForBuffer(Transaction trans
, ByteArrayBuffer buffer)
{
Db4objects.Db4o.CS.Internal.Messages.MsgD writer = GetWriterForLength(trans, buffer
.Length());
writer.WriteBytes(buffer._buffer);
return writer;
}
public virtual void Activate(Db4objects.Db4o.Internal.Transaction ta, object obj,
IActivationDepth depth)
{
ObjectContainerBase container = ta.Container();
ActivateInternal(container.ActivationContextFor(ta, obj, depth));
container.ActivatePending(ta);
}
public override object Key(Transaction trans)
{
if (_transaction != trans)
{
return No4.Instance;
}
return GetObject();
}
public virtual void SetTransaction(Transaction trans)
{
if (trans != null)
{
_trans = trans;
_stream = trans.Container();
}
}
protected QQueryBase(Db4objects.Db4o.Internal.Transaction a_trans, QQuery a_parent
, string a_field)
{
_this = Cast(this);
_trans = a_trans;
i_parent = a_parent;
i_field = a_field;
}
public void UseTransaction(MUseTransaction message)
{
int threadID = message.ReadInt();
Db4objects.Db4o.Internal.Transaction transToUse = _server.FindTransaction(threadID
);
_transactionHandle.Transaction(transToUse);
}
public virtual object ReadPrefetch(Db4objects.Db4o.Internal.Transaction trans, ByteArrayBuffer
buffer, int addToIDTree)
{
UnmarshallingContext context = new UnmarshallingContext(trans, buffer, this, addToIDTree
, false);
context.ActivationDepth(new FixedActivationDepth(1, ActivationMode.Prefetch));
return(context.Read());
}
private void UnmarshallChildren(Db4objects.Db4o.Internal.Transaction a_trans)
{
IEnumerator i = IterateChildren();
while (i.MoveNext())
{
((Db4objects.Db4o.Internal.Query.Processor.QCon)i.Current).Unmarshall(a_trans);
}
}
public virtual void PurgeFieldIndexEntriesOnUpdate(Db4objects.Db4o.Internal.Transaction
transaction, ArrayType arrayType)
{
if (!UpdateDepth().CanSkip(_reference))
{
transaction.WriteUpdateAdjustIndexes(_reference.GetID(), _reference.ClassMetadata
(), arrayType);
}
}
public BigSet(LocalObjectContainer db)
{
if (db == null)
{
return;
}
_transaction = db.Transaction;
_bTree = BTreeManager().NewBTree();
}
protected Db4objects.Db4o.Internal.Transaction CheckParentTransaction(Db4objects.Db4o.Internal.Transaction
a_trans, ByteArrayBuffer reader)
{
if (reader.ReadByte() == Const4.SystemTrans && a_trans.ParentTransaction() != null)
{
return(a_trans.ParentTransaction());
}
return(a_trans);
}
private IActivator ActivatorForObject(Db4objects.Db4o.Internal.Transaction transaction
, ObjectReference objectReference)
{
if (IsEmbeddedClient(transaction))
{
return(new TransactionalActivator(transaction, objectReference));
}
return(objectReference);
}
public object Read(Db4objects.Db4o.Internal.Transaction trans, ByteArrayBuffer buffer
, object obj, IActivationDepth instantiationDepth, int addToIDTree, bool checkIDTree
)
{
UnmarshallingContext context = new UnmarshallingContext(trans, buffer, this, addToIDTree
, checkIDTree);
context.PersistentObject(obj);
context.ActivationDepth(instantiationDepth);
return(context.Read());
}
internal virtual void Unmarshall(Db4objects.Db4o.Internal.Transaction a_trans)
{
if (i_trans != null)
{
return;
}
i_trans = a_trans;
UnmarshallParent(a_trans);
UnmarshallJoins(a_trans);
UnmarshallChildren(a_trans);
}
public ActivationContext4(Db4objects.Db4o.Internal.Transaction transaction, object
obj, IActivationDepth depth)
{
if (null == obj)
{
throw new ArgumentNullException();
}
_transaction = transaction;
_targetObject = obj;
_depth = depth;
}
public virtual void Unmarshall(Transaction a_trans)
{
_evaluationMode = QueryEvaluationMode.FromInt(_evaluationModeAsInt);
_trans = a_trans;
IEnumerator i = IterateConstraints();
while (i.MoveNext())
{
((QCon)i.Current).Unmarshall(a_trans);
}
}
internal void Store(Db4objects.Db4o.Internal.Transaction trans, Db4objects.Db4o.Internal.ClassMetadata
classMetadata, object obj)
{
_object = obj;
_class = classMetadata;
int id = trans.Container().IdForNewUserObject(trans);
SetID(id);
// will be ended in continueset()
BeginProcessing();
BitTrue(Const4.Continue);
}
private void BindActivatableToActivator(ObjectEventArgs oea)
{
object obj = oea.Object;
if (obj is IActivatable)
{
Db4objects.Db4o.Internal.Transaction transaction = (Db4objects.Db4o.Internal.Transaction
)oea.Transaction();
ObjectReference objectReference = transaction.ReferenceForObject(obj);
Bind(obj, ActivatorForObject(transaction, objectReference));
}
}
private void UnbindAll(IInternalObjectContainer container)
{
Db4objects.Db4o.Internal.Transaction transaction = container.Transaction;
// FIXME should that ever happen?
if (transaction == null)
{
return;
}
IReferenceSystem referenceSystem = transaction.ReferenceSystem();
referenceSystem.TraverseReferences(new _IVisitor4_95(this));
}
public virtual void Read(IReadContext context)
{
int id = context.ReadInt();
if (_bTree != null)
{
AssertCurrentBTreeId(id);
return;
}
_transaction = context.Transaction();
_bTree = BTreeManager().ProduceBTree(id);
}
public BTreeRangeSingle(Db4objects.Db4o.Internal.Transaction transaction, BTree btree
, BTreePointer first, BTreePointer end)
{
if (transaction == null || btree == null)
{
throw new ArgumentNullException();
}
_transaction = transaction;
_btree = btree;
_first = first;
_end = end;
}
public virtual void WriteUpdate(Db4objects.Db4o.Internal.Transaction transaction,
IUpdateDepth updatedepth)
{
ContinueSet(transaction, updatedepth);
// make sure, a concurrent new, possibly triggered by objectOnNew
// is written to the file
// preventing recursive
if (!BeginProcessing())
{
return;
}
object obj = GetObject();
if (!ObjectCanUpdate(transaction, obj) || !IsActive() || obj == null || !ClassMetadata
().IsModified(obj))
{
EndProcessing();
return;
}
MarshallingContext context = new MarshallingContext(transaction, this, updatedepth
, false);
if (context.UpdateDepth().Negative())
{
EndProcessing();
return;
}
ObjectContainerBase container = transaction.Container();
LogEvent(container, "update", Const4.State);
SetStateClean();
context.PurgeFieldIndexEntriesOnUpdate(transaction, container._handlers.ArrayType
(obj));
Handlers4.Write(_class.TypeHandler(), context, obj);
if (context.UpdateDepth().CanSkip(this))
{
EndProcessing();
return;
}
Pointer4 pointer = context.AllocateSlot();
ByteArrayBuffer buffer = context.ToWriteBuffer(pointer);
container.WriteUpdate(transaction, pointer, _class, container._handlers.ArrayType
(obj), buffer);
if (IsActive())
{
SetStateClean();
}
EndProcessing();
container.Callbacks().ObjectOnUpdate(transaction, this);
ClassMetadata().DispatchEvent(transaction, obj, EventDispatchers.Update);
}
public MarshallingContext(Db4objects.Db4o.Internal.Transaction trans, ObjectReference
@ref, IUpdateDepth updateDepth, bool isNew)
{
// YapClass ID
// Marshaller Version
// number of fields
_transaction = trans;
_reference = @ref;
_nullBitMap = new BitMap4(AspectCount());
_updateDepth = ClassMetadata().AdjustUpdateDepth(trans, updateDepth);
_isNew = isNew;
_writeBuffer = new MarshallingBuffer();
_currentBuffer = _writeBuffer;
}
/// <exception cref="Db4objects.Db4o.Ext.Db4oIOException"></exception>
protected static StatefulBuffer ReadMessageBuffer(Db4objects.Db4o.Internal.Transaction
trans, Socket4Adapter socket, int length)
{
StatefulBuffer buffer = new StatefulBuffer(trans, length);
int offset = 0;
while (length > 0)
{
int read = socket.Read(buffer._buffer, offset, length);
if (read < 0)
{
throw new Db4oIOException();
}
offset += read;
length -= read;
}
return(buffer);
}
public virtual void Deactivate(Db4objects.Db4o.Internal.Transaction trans, IActivationDepth
depth)
{
if (!depth.RequiresActivation())
{
return;
}
object obj = GetObject();
if (obj == null)
{
return;
}
ObjectContainerBase container = trans.Container();
LogActivation(container, "deactivate");
SetStateDeactivated();
_class.Deactivate(trans, this, depth);
}
internal QCon(Db4objects.Db4o.Internal.Transaction a_trans)
{
//Used for query debug only.
// our candidate object tree
// collection of QCandidates to collect children elements and to
// execute children. For convenience we hold them in the constraint,
// so we can do collection and execution in two steps
// all subconstraints
// for evaluation
// ID handling for fast find of QConstraint objects in
// pending OR evaluations
// ANDs and ORs on this constraint
// the parent of this constraint or null, if this is a root
// our transaction to get a stream object anywhere
// whether or not this constraint was used to get the initial set
// in the FieldIndexProcessor
// C/S only
i_id = idGenerator.Next();
i_trans = a_trans;
}
/// <summary>return false if class not completely initialized, otherwise true</summary>
internal virtual bool ContinueSet(Db4objects.Db4o.Internal.Transaction trans, IUpdateDepth
updateDepth)
{
if (!BitIsTrue(Const4.Continue))
{
return(true);
}
if (!_class.StateOK())
{
return(false);
}
if (!_class.AspectsAreInitialized())
{
return(false);
}
if (DTrace.enabled)
{
DTrace.Continueset.Log(GetID());
}
BitFalse(Const4.Continue);
MarshallingContext context = new MarshallingContext(trans, this, updateDepth, true
);
Handlers4.Write(ClassMetadata().TypeHandler(), context, GetObject());
Pointer4 pointer = context.AllocateSlot();
ByteArrayBuffer buffer = context.ToWriteBuffer(pointer);
ObjectContainerBase container = trans.Container();
container.WriteNew(trans, pointer, _class, buffer);
object obj = _object;
ObjectOnNew(trans, obj);
if (_class.HasIdentity())
{
_object = container.NewWeakReference(this, obj);
}
SetStateClean();
EndProcessing();
return(true);
}
