/// <summary>
/// Construct a new propagator.
/// </summary>
/// <param name="parent">UpdateTranslator supporting retrieval of changes for C-Space
/// extents referenced in the update mapping view.</param>
/// <param name="table">Table for which updates are being produced.</param>
private Propagator(UpdateTranslator parent, EntitySet table)
{
// Initialize propagator state.
EntityUtil.CheckArgumentNull(parent, "parent");
EntityUtil.CheckArgumentNull(table, "table");
m_updateTranslator = parent;
m_table = table;
}
// <summary>
// Construct a new propagator.
// </summary>
// <param name="parent"> UpdateTranslator supporting retrieval of changes for C-Space extents referenced in the update mapping view. </param>
// <param name="table"> Table for which updates are being produced. </param>
private Propagator(UpdateTranslator parent, EntitySet table)
{
// Initialize propagator state.
DebugCheck.NotNull(parent);
DebugCheck.NotNull(table);
m_updateTranslator = parent;
m_table = table;
}
protected UpdateCommand(
UpdateTranslator translator,
PropagatorResult originalValues,
PropagatorResult currentValues)
{
this.OriginalValues = originalValues;
this.CurrentValues = currentValues;
this.Translator = translator;
}
/// <summary>
/// Initialize a new function command. Initializes the command object.
/// </summary>
/// <param name="functionMapping"> Function mapping metadata </param>
/// <param name="translator"> Translator </param>
/// <param name="stateEntries"> State entries handled by this operation. </param>
/// <param name="stateEntry"> 'Root' state entry being handled by this function. </param>
internal FunctionUpdateCommand(
StorageModificationFunctionMapping functionMapping, UpdateTranslator translator,
ReadOnlyCollection <IEntityStateEntry> stateEntries, ExtractedStateEntry stateEntry)
: this(translator, stateEntries, stateEntry,
translator.GenerateCommandDefinition(functionMapping).CreateCommand())
{
DebugCheck.NotNull(functionMapping);
DebugCheck.NotNull(translator);
DebugCheck.NotNull(stateEntries);
}
public string GetQueryWithParameter(Expression fieldUpdate, Expression where, object source)
{
StringBuilder sb = new StringBuilder();
var translator = new UpdateTranslator(ref command);
sb.Append(translator.Translate(fieldUpdate, source));
sb.Append(" where ").Append(new WhereTranslator().Translate(where));
return(sb.ToString());
}
internal static ReadOnlyCollection <IEntityStateEntry> GetAllStateEntries(
PropagatorResult source,
UpdateTranslator translator,
EntitySet sourceTable)
{
SourceInterpreter sourceInterpreter = new SourceInterpreter(translator, sourceTable);
sourceInterpreter.RetrieveResultMarkup(source);
return(new ReadOnlyCollection <IEntityStateEntry>((IList <IEntityStateEntry>)sourceInterpreter.m_stateEntries));
}
/// <summary>
/// Initialize a new function command. Initializes the command object.
/// </summary>
/// <param name="functionMapping">Function mapping metadata</param>
/// <param name="translator">Translator</param>
/// <param name="stateEntries">State entries handled by this operation.</param>
/// <param name="stateEntry">'Root' state entry being handled by this function.</param>
internal FunctionUpdateCommand(
StorageModificationFunctionMapping functionMapping, UpdateTranslator translator,
ReadOnlyCollection<IEntityStateEntry> stateEntries, ExtractedStateEntry stateEntry)
: this(translator, stateEntries, stateEntry,
translator.GenerateCommandDefinition(functionMapping).CreateCommand())
{
Contract.Requires(functionMapping != null);
Contract.Requires(translator != null);
Contract.Requires(stateEntries != null);
}
protected FunctionUpdateCommand(
UpdateTranslator translator,
ReadOnlyCollection <System.Data.Entity.Core.IEntityStateEntry> stateEntries,
ExtractedStateEntry stateEntry,
DbCommand dbCommand)
: base(translator, stateEntry.Original, stateEntry.Current)
{
this._stateEntries = stateEntries;
this._dbCommand = (DbCommand) new InterceptableDbCommand(dbCommand, translator.InterceptionContext, (DbDispatchers)null);
}
protected FunctionUpdateCommand(
UpdateTranslator translator, ReadOnlyCollection<IEntityStateEntry> stateEntries, ExtractedStateEntry stateEntry,
DbCommand dbCommand)
: base(translator, stateEntry.Original, stateEntry.Current)
{
// populate the main state entry for error reporting
_stateEntries = stateEntries;
_dbCommand = dbCommand;
}
protected FunctionUpdateCommand(
UpdateTranslator translator, ReadOnlyCollection <IEntityStateEntry> stateEntries, ExtractedStateEntry stateEntry,
DbCommand dbCommand)
: base(translator, stateEntry.Original, stateEntry.Current)
{
// populate the main state entry for error reporting
_stateEntries = stateEntries;
_dbCommand = dbCommand;
}
internal override FunctionUpdateCommand Translate(
UpdateTranslator translator,
ExtractedStateEntry stateEntry)
{
if (null == m_mapping)
{
return(null);
}
var isInsert = EntityState.Added == stateEntry.State;
EntityUtil.ValidateNecessaryModificationFunctionMapping(
isInsert ? m_mapping.InsertFunctionMapping : m_mapping.DeleteFunctionMapping,
isInsert ? "Insert" : "Delete",
stateEntry.Source, "AssociationSet", m_mapping.AssociationSet.Name);
// initialize a new command
var functionMapping = isInsert ? m_mapping.InsertFunctionMapping : m_mapping.DeleteFunctionMapping;
var command = new FunctionUpdateCommand(
functionMapping, translator, new ReadOnlyCollection <IEntityStateEntry>(new[] { stateEntry.Source }.ToList()), stateEntry);
// extract the relationship values from the state entry
PropagatorResult recordResult;
if (isInsert)
{
recordResult = stateEntry.Current;
}
else
{
recordResult = stateEntry.Original;
}
// bind parameters
foreach (var parameterBinding in functionMapping.ParameterBindings)
{
// extract the relationship information
Debug.Assert(
2 == parameterBinding.MemberPath.Members.Count, "relationship parameter binding member " +
"path should include the relationship end and key property only");
var keyProperty = (EdmProperty)parameterBinding.MemberPath.Members[0];
var endMember = (AssociationEndMember)parameterBinding.MemberPath.Members[1];
// get the end member
var endResult = recordResult.GetMemberValue(endMember);
var keyResult = endResult.GetMemberValue(keyProperty);
command.SetParameterValue(keyResult, parameterBinding, translator);
}
// add rows affected output parameter
command.RegisterRowsAffectedParameter(functionMapping.RowsAffectedParameter);
return(command);
}
/// <summary>
/// Initialize a new function command. Initializes the command object.
/// </summary>
/// <param name="functionMapping"> Function mapping metadata </param>
/// <param name="translator"> Translator </param>
/// <param name="stateEntries"> State entries handled by this operation. </param>
/// <param name="stateEntry"> 'Root' state entry being handled by this function. </param>
internal FunctionUpdateCommand(
StorageModificationFunctionMapping functionMapping,
UpdateTranslator translator,
ReadOnlyCollection<IEntityStateEntry> stateEntries,
ExtractedStateEntry stateEntry)
: this(translator, stateEntries, stateEntry,
translator.GenerateCommandDefinition(functionMapping).CreateCommand())
{
DebugCheck.NotNull(functionMapping);
DebugCheck.NotNull(translator);
DebugCheck.NotNull(stateEntries);
}
// <summary>
// Propagate changes from C-Space (contained in <paramref name="parent" /> to the S-Space.
// </summary>
// <remarks>
// See Walker class for an explanation of this coding pattern.
// </remarks>
// <param name="parent"> Grouper supporting retrieval of changes for C-Space extents referenced in the update mapping view. </param>
// <param name="table"> Table for which updates are being produced. </param>
// <param name="umView"> Update mapping view to propagate. </param>
// <returns> Changes in S-Space. </returns>
internal static ChangeNode Propagate(UpdateTranslator parent, EntitySet table, DbQueryCommandTree umView)
{
// Construct a new instance of a propagator, which implements a visitor interface
// for expression nodes (nodes in the update mapping view) and returns changes nodes
// (seeded by C-Space extent changes returned by the grouper).
DbExpressionVisitor <ChangeNode> propagator = new Propagator(parent, table);
// Walk the update mapping view using the visitor pattern implemented in this class.
// The update mapping view describes the S-Space table we're targeting, so the result
// returned for the root of view corresponds to changes propagated to the S-Space.
return(umView.Query.Accept(propagator));
}
// <summary>
// Finds all markup associated with the given source.
// </summary>
// <param name="source"> Source expression. Must not be null. </param>
// <param name="translator"> Translator containing session information. </param>
// <param name="sourceTable"> Table from which the exception was thrown (must not be null). </param>
// <returns> Markup. </returns>
internal static ReadOnlyCollection<IEntityStateEntry> GetAllStateEntries(
PropagatorResult source, UpdateTranslator translator,
EntitySet sourceTable)
{
DebugCheck.NotNull(source);
DebugCheck.NotNull(translator);
DebugCheck.NotNull(sourceTable);
var interpreter = new SourceInterpreter(translator, sourceTable);
interpreter.RetrieveResultMarkup(source);
return new ReadOnlyCollection<IEntityStateEntry>(interpreter.m_stateEntries);
}
/// <summary>
/// Finds all markup associated with the given source.
/// </summary>
/// <param name="source"> Source expression. Must not be null. </param>
/// <param name="translator"> Translator containing session information. </param>
/// <param name="sourceTable"> Table from which the exception was thrown (must not be null). </param>
/// <returns> Markup. </returns>
internal static ReadOnlyCollection <IEntityStateEntry> GetAllStateEntries(
PropagatorResult source, UpdateTranslator translator,
EntitySet sourceTable)
{
DebugCheck.NotNull(source);
DebugCheck.NotNull(translator);
DebugCheck.NotNull(sourceTable);
var interpreter = new SourceInterpreter(translator, sourceTable);
interpreter.RetrieveResultMarkup(source);
return(new ReadOnlyCollection <IEntityStateEntry>(interpreter.m_stateEntries));
}
private int GetColumnOrdinal(
UpdateTranslator translator,
DbDataReader reader,
string columnName)
{
try
{
return(reader.GetOrdinal(columnName));
}
catch (IndexOutOfRangeException ex)
{
throw new UpdateException(Strings.Update_MissingResultColumn((object)columnName), (Exception)null, this.GetStateEntries(translator).Cast <ObjectStateEntry>().Distinct <ObjectStateEntry>());
}
}
private int GetColumnOrdinal(UpdateTranslator translator, DbDataReader reader, string columnName)
{
int columnOrdinal;
try
{
columnOrdinal = reader.GetOrdinal(columnName);
}
catch (IndexOutOfRangeException)
{
throw new UpdateException(
Strings.Update_MissingResultColumn(columnName), null, GetStateEntries(translator).Cast <ObjectStateEntry>().Distinct());
}
return(columnOrdinal);
}
private int GetColumnOrdinal(UpdateTranslator translator, DbDataReader reader, string columnName)
{
int columnOrdinal;
try
{
columnOrdinal = reader.GetOrdinal(columnName);
}
catch (IndexOutOfRangeException)
{
throw EntityUtil.Update(System.Data.Entity.Strings.Update_MissingResultColumn(columnName), null,
this.GetStateEntries(translator));
}
return(columnOrdinal);
}
internal void GetRequiredAndProducedEntities(
UpdateTranslator translator,
KeyToListMap <EntityKey, UpdateCommand> addedEntities,
KeyToListMap <EntityKey, UpdateCommand> deletedEntities,
KeyToListMap <EntityKey, UpdateCommand> addedRelationships,
KeyToListMap <EntityKey, UpdateCommand> deletedRelationships)
{
IList <IEntityStateEntry> stateEntries = this.GetStateEntries(translator);
foreach (IEntityStateEntry entityStateEntry in (IEnumerable <IEntityStateEntry>)stateEntries)
{
if (!entityStateEntry.IsRelationship)
{
if (entityStateEntry.State == EntityState.Added)
{
addedEntities.Add(entityStateEntry.EntityKey, this);
}
else if (entityStateEntry.State == EntityState.Deleted)
{
deletedEntities.Add(entityStateEntry.EntityKey, this);
}
}
}
if (this.OriginalValues != null)
{
this.AddReferencedEntities(translator, this.OriginalValues, deletedRelationships);
}
if (this.CurrentValues != null)
{
this.AddReferencedEntities(translator, this.CurrentValues, addedRelationships);
}
foreach (IEntityStateEntry entityStateEntry in (IEnumerable <IEntityStateEntry>)stateEntries)
{
if (entityStateEntry.IsRelationship)
{
bool flag = entityStateEntry.State == EntityState.Added;
if (flag || entityStateEntry.State == EntityState.Deleted)
{
DbDataRecord dbDataRecord = flag ? (DbDataRecord)entityStateEntry.CurrentValues : entityStateEntry.OriginalValues;
EntityKey key1 = (EntityKey)dbDataRecord[0];
EntityKey key2 = (EntityKey)dbDataRecord[1];
KeyToListMap <EntityKey, UpdateCommand> keyToListMap = flag ? addedRelationships : deletedRelationships;
keyToListMap.Add(key1, this);
keyToListMap.Add(key2, this);
}
}
}
}
// <summary>
// Handles extent expressions (these are the terminal nodes in update mapping views). This handler
// retrieves the changes from the grouper.
// </summary>
// <param name="node"> Extent expression node </param>
public override ChangeNode Visit(DbScanExpression node)
{
Check.NotNull(node, "node");
// Gets modifications requested for this extent from the grouper.
var extent = node.Target;
var extentModifications = UpdateTranslator.GetExtentModifications(extent);
if (null == extentModifications.Placeholder)
{
// Bootstrap placeholder (essentially a record for the extent populated with default values).
extentModifications.Placeholder = ExtentPlaceholderCreator.CreatePlaceholder(extent);
}
return(extentModifications);
}
private static void BindFunctionParameters(
UpdateTranslator translator,
ExtractedStateEntry stateEntry,
ModificationFunctionMapping functionMapping,
FunctionUpdateCommand command,
Dictionary <AssociationEndMember, IEntityStateEntry> currentReferenceEnds,
Dictionary <AssociationEndMember, IEntityStateEntry> originalReferenceEnds)
{
foreach (ModificationFunctionParameterBinding parameterBinding in functionMapping.ParameterBindings)
{
PropagatorResult result;
if (parameterBinding.MemberPath.AssociationSetEnd != null)
{
AssociationEndMember associationEndMember = parameterBinding.MemberPath.AssociationSetEnd.CorrespondingAssociationEndMember;
IEntityStateEntry stateEntry1;
if (!(parameterBinding.IsCurrent ? currentReferenceEnds.TryGetValue(associationEndMember, out stateEntry1) : originalReferenceEnds.TryGetValue(associationEndMember, out stateEntry1)))
{
if (associationEndMember.RelationshipMultiplicity == RelationshipMultiplicity.One)
{
throw new UpdateException(Strings.Update_MissingRequiredRelationshipValue((object)stateEntry.Source.EntitySet.Name, (object)parameterBinding.MemberPath.AssociationSetEnd.ParentAssociationSet.Name), (Exception)null, command.GetStateEntries(translator).Cast <ObjectStateEntry>().Distinct <ObjectStateEntry>());
}
result = PropagatorResult.CreateSimpleValue(PropagatorFlags.NoFlags, (object)null);
}
else
{
result = (parameterBinding.IsCurrent ? translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(stateEntry1, ModifiedPropertiesBehavior.AllModified) : translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(stateEntry1, ModifiedPropertiesBehavior.AllModified)).GetMemberValue((EdmMember)associationEndMember).GetMemberValue(parameterBinding.MemberPath.Members[0]);
}
}
else
{
result = parameterBinding.IsCurrent ? stateEntry.Current : stateEntry.Original;
int count = parameterBinding.MemberPath.Members.Count;
while (count > 0)
{
--count;
EdmMember member = parameterBinding.MemberPath.Members[count];
result = result.GetMemberValue(member);
}
}
command.SetParameterValue(result, parameterBinding, translator);
}
command.RegisterRowsAffectedParameter(functionMapping.RowsAffectedParameter);
}
internal ExtractedStateEntry(UpdateTranslator translator, IEntityStateEntry stateEntry)
{
DebugCheck.NotNull(translator);
DebugCheck.NotNull(stateEntry);
State = stateEntry.State;
Source = stateEntry;
switch (stateEntry.State)
{
case EntityState.Deleted:
Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.AllModified);
Current = null;
break;
case EntityState.Unchanged:
Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.NoneModified);
Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.NoneModified);
break;
case EntityState.Modified:
Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.SomeModified);
Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.SomeModified);
break;
case EntityState.Added:
Original = null;
Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.AllModified);
break;
default:
Debug.Assert(false, "Unexpected IEntityStateEntry.State for entity " + stateEntry.State);
Original = null;
Current = null;
break;
}
}
// <summary>
// Converts a record to a propagator result
// </summary>
// <param name="stateEntry"> state manager entry containing the record </param>
// <param name="isModified"> Indicates whether the root element is modified (i.e., whether the type has changed) </param>
// <param name="record"> Record to convert </param>
// <param name="useCurrentValues"> Indicates whether we are retrieving current or original values. </param>
// <param name="translator"> Translator for session context; registers new metadata for the record type if none exists </param>
// <param name="modifiedPropertiesBehavior"> Indicates how to determine whether a property is modified. </param>
// <returns> Result corresponding to the given record </returns>
internal static PropagatorResult ExtractResultFromRecord(
IEntityStateEntry stateEntry, bool isModified, IExtendedDataRecord record,
bool useCurrentValues, UpdateTranslator translator, ModifiedPropertiesBehavior modifiedPropertiesBehavior)
{
var structuralType = (StructuralType)record.DataRecordInfo.RecordType.EdmType;
var metadata = translator.GetExtractorMetadata(stateEntry.EntitySet, structuralType);
var key = stateEntry.EntityKey;
var nestedValues = new PropagatorResult[record.FieldCount];
for (var ordinal = 0; ordinal < nestedValues.Length; ordinal++)
{
nestedValues[ordinal] = metadata.RetrieveMember(
stateEntry, record, useCurrentValues, key,
ordinal, modifiedPropertiesBehavior);
}
return(PropagatorResult.CreateStructuralValue(nestedValues, structuralType, isModified));
}
internal DynamicUpdateCommand(
TableChangeProcessor processor, UpdateTranslator translator,
ModificationOperator modificationOperator, PropagatorResult originalValues, PropagatorResult currentValues,
DbModificationCommandTree tree, Dictionary<int, string> outputIdentifiers)
: base(translator, originalValues, currentValues)
{
Contract.Requires(processor != null);
Contract.Requires(translator != null);
Contract.Requires(tree != null);
_processor = processor;
_operator = modificationOperator;
_modificationCommandTree = tree;
_outputIdentifiers = outputIdentifiers; // may be null (not all commands have output identifiers)
// initialize identifier information (supports lateral propagation of server gen values)
if (ModificationOperator.Insert == modificationOperator
|| ModificationOperator.Update == modificationOperator)
{
const int capacity = 2; // "average" number of identifiers per row
_inputIdentifiers = new List<KeyValuePair<int, DbSetClause>>(capacity);
foreach (var member in
Helper.PairEnumerations(
TypeHelpers.GetAllStructuralMembers(CurrentValues.StructuralType),
CurrentValues.GetMemberValues()))
{
DbSetClause setter;
var identifier = member.Value.Identifier;
if (PropagatorResult.NullIdentifier != identifier
&&
TryGetSetterExpression(tree, member.Key, modificationOperator, out setter)) // can find corresponding setter
{
foreach (var principal in translator.KeyManager.GetPrincipals(identifier))
{
_inputIdentifiers.Add(new KeyValuePair<int, DbSetClause>(principal, setter));
}
}
}
}
}
internal DynamicUpdateCommand(
TableChangeProcessor processor, UpdateTranslator translator,
ModificationOperator modificationOperator, PropagatorResult originalValues, PropagatorResult currentValues,
DbModificationCommandTree tree, Dictionary <int, string> outputIdentifiers)
: base(translator, originalValues, currentValues)
{
DebugCheck.NotNull(processor);
DebugCheck.NotNull(translator);
DebugCheck.NotNull(tree);
_processor = processor;
_operator = modificationOperator;
_modificationCommandTree = tree;
_outputIdentifiers = outputIdentifiers; // may be null (not all commands have output identifiers)
// initialize identifier information (supports lateral propagation of server gen values)
if (ModificationOperator.Insert == modificationOperator ||
ModificationOperator.Update == modificationOperator)
{
const int capacity = 2; // "average" number of identifiers per row
_inputIdentifiers = new List <KeyValuePair <int, DbSetClause> >(capacity);
foreach (var member in
Helper.PairEnumerations(
TypeHelpers.GetAllStructuralMembers(CurrentValues.StructuralType),
CurrentValues.GetMemberValues()))
{
DbSetClause setter;
var identifier = member.Value.Identifier;
if (PropagatorResult.NullIdentifier != identifier
&&
TryGetSetterExpression(tree, member.Key, modificationOperator, out setter)) // can find corresponding setter
{
foreach (var principal in translator.KeyManager.GetPrincipals(identifier))
{
_inputIdentifiers.Add(new KeyValuePair <int, DbSetClause>(principal, setter));
}
}
}
}
}
private void AddReferencedEntities(
UpdateTranslator translator,
PropagatorResult result,
KeyToListMap <EntityKey, UpdateCommand> referencedEntities)
{
foreach (PropagatorResult memberValue in result.GetMemberValues())
{
if (memberValue.IsSimple && memberValue.Identifier != -1 && PropagatorFlags.ForeignKey == (memberValue.PropagatorFlags & PropagatorFlags.ForeignKey))
{
foreach (int directReference in translator.KeyManager.GetDirectReferences(memberValue.Identifier))
{
PropagatorResult owner;
if (translator.KeyManager.TryGetIdentifierOwner(directReference, out owner) && owner.StateEntry != null)
{
referencedEntities.Add(owner.StateEntry.EntityKey, this);
}
}
}
}
}
private void AddReferencedEntities(UpdateTranslator translator, PropagatorResult result, KeyToListMap <EntityKey, UpdateCommand> referencedEntities)
{
foreach (PropagatorResult property in result.GetMemberValues())
{
if (property.IsSimple && property.Identifier != PropagatorResult.NullIdentifier &&
(PropagatorFlags.ForeignKey == (property.PropagatorFlags & PropagatorFlags.ForeignKey)))
{
foreach (int principal in translator.KeyManager.GetDirectReferences(property.Identifier))
{
PropagatorResult owner;
if (translator.KeyManager.TryGetIdentifierOwner(principal, out owner) &&
null != owner.StateEntry)
{
Debug.Assert(!owner.StateEntry.IsRelationship, "owner must not be a relationship");
referencedEntities.Add(owner.StateEntry.EntityKey, this);
}
}
}
}
}
internal ExtractedStateEntry(UpdateTranslator translator, IEntityStateEntry stateEntry)
{
Debug.Assert(null != stateEntry, "stateEntry must not be null");
this.State = stateEntry.State;
this.Source = stateEntry;
switch (stateEntry.State)
{
case EntityState.Deleted:
this.Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.AllModified);
this.Current = null;
break;
case EntityState.Unchanged:
this.Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.NoneModified);
this.Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.NoneModified);
break;
case EntityState.Modified:
this.Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.SomeModified);
this.Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.SomeModified);
break;
case EntityState.Added:
this.Original = null;
this.Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.AllModified);
break;
default:
Debug.Fail("unexpected IEntityStateEntry.State for entity " + stateEntry.State);
this.Original = null;
this.Current = null;
break;
}
}
private PropagatorResult ConvertStateEntryToPropagatorResult(IEntityStateEntry stateEntry, bool useCurrentValues, ModifiedPropertiesBehavior modifiedPropertiesBehavior)
{
try
{
EntityUtil.CheckArgumentNull(stateEntry, "stateEntry");
IExtendedDataRecord record = useCurrentValues
? EntityUtil.CheckArgumentNull(stateEntry.CurrentValues as IExtendedDataRecord, "stateEntry.CurrentValues")
: EntityUtil.CheckArgumentNull(stateEntry.OriginalValues as IExtendedDataRecord, "stateEntry.OriginalValues");
bool isModified = false; // the root of the state entry is unchanged because the type is static
return(ExtractorMetadata.ExtractResultFromRecord(stateEntry, isModified, record, useCurrentValues, m_updateTranslator, modifiedPropertiesBehavior));
}
catch (Exception e)
{
if (UpdateTranslator.RequiresContext(e))
{
throw EntityUtil.Update(Strings.Update_ErrorLoadingRecord, e, stateEntry);
}
throw;
}
}
internal override IList <IEntityStateEntry> GetStateEntries(
UpdateTranslator translator)
{
List <IEntityStateEntry> entityStateEntryList = new List <IEntityStateEntry>(2);
if (this.OriginalValues != null)
{
foreach (IEntityStateEntry allStateEntry in SourceInterpreter.GetAllStateEntries(this.OriginalValues, translator, this.Table))
{
entityStateEntryList.Add(allStateEntry);
}
}
if (this.CurrentValues != null)
{
foreach (IEntityStateEntry allStateEntry in SourceInterpreter.GetAllStateEntries(this.CurrentValues, translator, this.Table))
{
entityStateEntryList.Add(allStateEntry);
}
}
return((IList <IEntityStateEntry>)entityStateEntryList);
}
internal ExtractedStateEntry(UpdateTranslator translator, IEntityStateEntry stateEntry)
{
DebugCheck.NotNull(translator);
DebugCheck.NotNull(stateEntry);
State = stateEntry.State;
Source = stateEntry;
switch (stateEntry.State)
{
case EntityState.Deleted:
Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.AllModified);
Current = null;
break;
case EntityState.Unchanged:
Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.NoneModified);
Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.NoneModified);
break;
case EntityState.Modified:
Original = translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.SomeModified);
Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.SomeModified);
break;
case EntityState.Added:
Original = null;
Current = translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
stateEntry, ModifiedPropertiesBehavior.AllModified);
break;
default:
Debug.Assert(false, "Unexpected IEntityStateEntry.State for entity " + stateEntry.State);
Original = null;
Current = null;
break;
}
}
private T Update <T>(T noChangesResult, Func <UpdateTranslator, T> updateFunction)
{
if (!EntityAdapter.IsStateManagerDirty(this._context.ObjectStateManager))
{
return(noChangesResult);
}
if (this._connection == null)
{
throw Error.EntityClient_NoConnectionForAdapter();
}
if (this._connection.StoreProviderFactory == null || this._connection.StoreConnection == null)
{
throw Error.EntityClient_NoStoreConnectionForUpdate();
}
if (ConnectionState.Open != this._connection.State)
{
throw Error.EntityClient_ClosedConnectionForUpdate();
}
UpdateTranslator updateTranslator = this._updateTranslatorFactory(this);
return(updateFunction(updateTranslator));
}
internal void AddResultColumn(
UpdateTranslator translator,
string columnName,
PropagatorResult result)
{
if (this.ResultColumns == null)
{
this.ResultColumns = new List <KeyValuePair <string, PropagatorResult> >(2);
}
this.ResultColumns.Add(new KeyValuePair <string, PropagatorResult>(columnName, result));
int identifier = result.Identifier;
if (-1 == identifier)
{
return;
}
if (translator.KeyManager.HasPrincipals(identifier))
{
throw new InvalidOperationException(Strings.Update_GeneratedDependent((object)columnName));
}
this.AddOutputIdentifier(columnName, identifier);
}
internal override FunctionUpdateCommand Translate(
UpdateTranslator translator,
ExtractedStateEntry stateEntry)
{
ModificationFunctionMapping functionMapping = this.GetFunctionMapping(stateEntry).Item2;
EntityKey entityKey = stateEntry.Source.EntityKey;
HashSet <IEntityStateEntry> entityStateEntrySet = new HashSet <IEntityStateEntry>()
{
stateEntry.Source
};
IEnumerable <Tuple <AssociationEndMember, IEntityStateEntry> > tuples = functionMapping.CollocatedAssociationSetEnds.Join <AssociationSetEnd, IEntityStateEntry, StructuralType, Tuple <AssociationEndMember, IEntityStateEntry> >(translator.GetRelationships(entityKey), (Func <AssociationSetEnd, StructuralType>)(end => end.CorrespondingAssociationEndMember.DeclaringType), (Func <IEntityStateEntry, StructuralType>)(candidateEntry => (StructuralType)candidateEntry.EntitySet.ElementType), (Func <AssociationSetEnd, IEntityStateEntry, Tuple <AssociationEndMember, IEntityStateEntry> >)((end, candidateEntry) => Tuple.Create <AssociationEndMember, IEntityStateEntry>(end.CorrespondingAssociationEndMember, candidateEntry)));
Dictionary <AssociationEndMember, IEntityStateEntry> dictionary1 = new Dictionary <AssociationEndMember, IEntityStateEntry>();
Dictionary <AssociationEndMember, IEntityStateEntry> dictionary2 = new Dictionary <AssociationEndMember, IEntityStateEntry>();
foreach (Tuple <AssociationEndMember, IEntityStateEntry> tuple in tuples)
{
ModificationFunctionMappingTranslator.EntitySetTranslator.ProcessReferenceCandidate(entityKey, entityStateEntrySet, dictionary1, dictionary2, tuple.Item1, tuple.Item2);
}
FunctionUpdateCommand command;
if (entityStateEntrySet.All <IEntityStateEntry>((Func <IEntityStateEntry, bool>)(e => e.State == EntityState.Unchanged)))
{
command = (FunctionUpdateCommand)null;
}
else
{
command = new FunctionUpdateCommand(functionMapping, translator, new ReadOnlyCollection <IEntityStateEntry>((IList <IEntityStateEntry>)entityStateEntrySet.ToList <IEntityStateEntry>()), stateEntry);
ModificationFunctionMappingTranslator.EntitySetTranslator.BindFunctionParameters(translator, stateEntry, functionMapping, command, dictionary1, dictionary2);
if (functionMapping.ResultBindings != null)
{
foreach (ModificationFunctionResultBinding resultBinding in functionMapping.ResultBindings)
{
PropagatorResult memberValue = stateEntry.Current.GetMemberValue((EdmMember)resultBinding.Property);
command.AddResultColumn(translator, resultBinding.ColumnName, memberValue);
}
}
}
return(command);
}
internal override IList <IEntityStateEntry> GetStateEntries(UpdateTranslator translator)
{
var stateEntries = new List <IEntityStateEntry>(2);
if (null != OriginalValues)
{
foreach (var stateEntry in SourceInterpreter.GetAllStateEntries(
OriginalValues, translator, Table))
{
stateEntries.Add(stateEntry);
}
}
if (null != CurrentValues)
{
foreach (var stateEntry in SourceInterpreter.GetAllStateEntries(
CurrentValues, translator, Table))
{
stateEntries.Add(stateEntry);
}
}
return(stateEntries);
}
// Adds a result column binding from a column name (from the result set for the function) to
// a propagator result (which contains the context necessary to back-propagate the result).
// If the result is an identifier, binds the
internal void AddResultColumn(UpdateTranslator translator, String columnName, PropagatorResult result)
{
const int initializeSize = 2; // expect on average less than two result columns per command
if (null == ResultColumns)
{
ResultColumns = new List <KeyValuePair <string, PropagatorResult> >(initializeSize);
}
ResultColumns.Add(new KeyValuePair <string, PropagatorResult>(columnName, result));
var identifier = result.Identifier;
if (PropagatorResult.NullIdentifier != identifier)
{
if (translator.KeyManager.HasPrincipals(identifier))
{
throw new InvalidOperationException(Strings.Update_GeneratedDependent(columnName));
}
// register output identifier to enable fix-up and dependency tracking
AddOutputIdentifier(columnName, identifier);
}
}
// Walks through all parameter bindings in the function mapping and binds the parameters to the
// requested properties of the given state entry.
private static void BindFunctionParameters(
UpdateTranslator translator, ExtractedStateEntry stateEntry, ModificationFunctionMapping functionMapping,
FunctionUpdateCommand command, Dictionary<AssociationEndMember, IEntityStateEntry> currentReferenceEnds,
Dictionary<AssociationEndMember, IEntityStateEntry> originalReferenceEnds)
{
// bind all parameters
foreach (var parameterBinding in functionMapping.ParameterBindings)
{
PropagatorResult result;
// extract value
if (null != parameterBinding.MemberPath.AssociationSetEnd)
{
// find the relationship entry corresponding to the navigation
var endMember = parameterBinding.MemberPath.AssociationSetEnd.CorrespondingAssociationEndMember;
IEntityStateEntry relationshipEntry;
var hasTarget = parameterBinding.IsCurrent
? currentReferenceEnds.TryGetValue(endMember, out relationshipEntry)
: originalReferenceEnds.TryGetValue(endMember, out relationshipEntry);
if (!hasTarget)
{
if (endMember.RelationshipMultiplicity
== RelationshipMultiplicity.One)
{
var entitySetName = stateEntry.Source.EntitySet.Name;
var associationSetName = parameterBinding.MemberPath.AssociationSetEnd.ParentAssociationSet.Name;
throw new UpdateException(
Strings.Update_MissingRequiredRelationshipValue(entitySetName, associationSetName), null,
command.GetStateEntries(translator).Cast<ObjectStateEntry>().Distinct());
}
else
{
result = PropagatorResult.CreateSimpleValue(PropagatorFlags.NoFlags, null);
}
}
else
{
// get the actual value
var relationshipResult = parameterBinding.IsCurrent
? translator.RecordConverter.ConvertCurrentValuesToPropagatorResult(
relationshipEntry, ModifiedPropertiesBehavior.AllModified)
: translator.RecordConverter.ConvertOriginalValuesToPropagatorResult(
relationshipEntry, ModifiedPropertiesBehavior.AllModified);
var endResult = relationshipResult.GetMemberValue(endMember);
var keyProperty = (EdmProperty)parameterBinding.MemberPath.Members[0];
result = endResult.GetMemberValue(keyProperty);
}
}
else
{
// walk through the member path to find the appropriate propagator results
result = parameterBinding.IsCurrent ? stateEntry.Current : stateEntry.Original;
for (var i = parameterBinding.MemberPath.Members.Count; i > 0;)
{
--i;
var member = parameterBinding.MemberPath.Members[i];
result = result.GetMemberValue(member);
}
}
// create DbParameter
command.SetParameterValue(result, parameterBinding, translator);
}
// Add rows affected parameter
command.RegisterRowsAffectedParameter(functionMapping.RowsAffectedParameter);
}
// <summary>
// Requires: this translator must be registered to handle the entity set
// for the given state entry.
// Translates the given state entry to a command.
// </summary>
// <param name="translator"> Parent update translator (global state for the workload) </param>
// <param name="stateEntry"> State entry to translate. Must belong to the entity/association set handled by this translator </param>
// <returns> Command corresponding to the given state entry </returns>
internal abstract FunctionUpdateCommand Translate(
UpdateTranslator translator,
ExtractedStateEntry stateEntry);
internal override FunctionUpdateCommand Translate(
UpdateTranslator translator,
ExtractedStateEntry stateEntry)
{
if (null == m_mapping)
{
return null;
}
var isInsert = EntityState.Added == stateEntry.State;
EntityUtil.ValidateNecessaryModificationFunctionMapping(
isInsert ? m_mapping.InsertFunctionMapping : m_mapping.DeleteFunctionMapping,
isInsert ? "Insert" : "Delete",
stateEntry.Source, "AssociationSet", m_mapping.AssociationSet.Name);
// initialize a new command
var functionMapping = isInsert ? m_mapping.InsertFunctionMapping : m_mapping.DeleteFunctionMapping;
var command = new FunctionUpdateCommand(
functionMapping, translator, new ReadOnlyCollection<IEntityStateEntry>(new[] { stateEntry.Source }.ToList()), stateEntry);
// extract the relationship values from the state entry
PropagatorResult recordResult;
if (isInsert)
{
recordResult = stateEntry.Current;
}
else
{
recordResult = stateEntry.Original;
}
// bind parameters
foreach (var parameterBinding in functionMapping.ParameterBindings)
{
// extract the relationship information
Debug.Assert(
2 == parameterBinding.MemberPath.Members.Count, "relationship parameter binding member " +
"path should include the relationship end and key property only");
var keyProperty = (EdmProperty)parameterBinding.MemberPath.Members[0];
var endMember = (AssociationEndMember)parameterBinding.MemberPath.Members[1];
// get the end member
var endResult = recordResult.GetMemberValue(endMember);
var keyResult = endResult.GetMemberValue(keyProperty);
command.SetParameterValue(keyResult, parameterBinding, translator);
}
// add rows affected output parameter
command.RegisterRowsAffectedParameter(functionMapping.RowsAffectedParameter);
return command;
}
internal override FunctionUpdateCommand Translate(
UpdateTranslator translator,
ExtractedStateEntry stateEntry)
{
var mapping = GetFunctionMapping(stateEntry);
var functionMapping = mapping.Item2;
var entityKey = stateEntry.Source.EntityKey;
var stateEntries = new HashSet<IEntityStateEntry>
{
stateEntry.Source
};
// gather all referenced association ends
var collocatedEntries =
// find all related entries corresponding to collocated association types
from end in functionMapping.CollocatedAssociationSetEnds
join candidateEntry in translator.GetRelationships(entityKey)
on end.CorrespondingAssociationEndMember.DeclaringType equals candidateEntry.EntitySet.ElementType
select Tuple.Create(end.CorrespondingAssociationEndMember, candidateEntry);
var currentReferenceEnds = new Dictionary<AssociationEndMember, IEntityStateEntry>();
var originalReferenceEnds = new Dictionary<AssociationEndMember, IEntityStateEntry>();
foreach (var candidate in collocatedEntries)
{
ProcessReferenceCandidate(
entityKey, stateEntries, currentReferenceEnds, originalReferenceEnds, candidate.Item1, candidate.Item2);
}
// create function object
FunctionUpdateCommand command;
// consider the following scenario, we need to loop through all the state entries that is correlated with entity2 and make sure it is not changed.
// entity1 <-- Independent Association <-- entity2 <-- Fk association <-- entity 3
// |
// entity4 <-- Fk association <--
if (stateEntries.All(e => e.State == EntityState.Unchanged))
{
// we shouldn't update the entity if it is unchanged, only update when referenced association is changed.
// if not, then this will trigger a fake update for principal
command = null;
}
else
{
command = new FunctionUpdateCommand(functionMapping, translator, new ReadOnlyCollection<IEntityStateEntry>(stateEntries.ToList()), stateEntry);
// bind all function parameters
BindFunctionParameters(translator, stateEntry, functionMapping, command, currentReferenceEnds, originalReferenceEnds);
// interpret all result bindings
if (null != functionMapping.ResultBindings)
{
foreach (var resultBinding in functionMapping.ResultBindings)
{
var result = stateEntry.Current.GetMemberValue(resultBinding.Property);
command.AddResultColumn(translator, resultBinding.ColumnName, result);
}
}
}
return command;
}
// Adds a result column binding from a column name (from the result set for the function) to
// a propagator result (which contains the context necessary to back-propagate the result).
// If the result is an identifier, binds the
internal void AddResultColumn(UpdateTranslator translator, String columnName, PropagatorResult result)
{
const int initializeSize = 2; // expect on average less than two result columns per command
if (null == ResultColumns)
{
ResultColumns = new List<KeyValuePair<string, PropagatorResult>>(initializeSize);
}
ResultColumns.Add(new KeyValuePair<string, PropagatorResult>(columnName, result));
var identifier = result.Identifier;
if (PropagatorResult.NullIdentifier != identifier)
{
if (translator.KeyManager.HasPrincipals(identifier))
{
throw new InvalidOperationException(Strings.Update_GeneratedDependent(columnName));
}
// register output identifier to enable fix-up and dependency tracking
AddOutputIdentifier(columnName, identifier);
}
}
/// <summary>
/// Converts a record to a propagator result
/// </summary>
/// <param name="stateEntry">state manager entry containing the record</param>
/// <param name="isModified">Indicates whether the root element is modified (i.e., whether the type has changed)</param>
/// <param name="record">Record to convert</param>
/// <param name="useCurrentValues">Indicates whether we are retrieving current or original values.</param>
/// <param name="translator">Translator for session context; registers new metadata for the record type if none
/// exists</param>
/// <param name="modifiedPropertiesBehavior">Indicates how to determine whether a property is modified.</param>
/// <returns>Result corresponding to the given record</returns>
internal static PropagatorResult ExtractResultFromRecord(
IEntityStateEntry stateEntry, bool isModified, IExtendedDataRecord record,
bool useCurrentValues, UpdateTranslator translator, ModifiedPropertiesBehavior modifiedPropertiesBehavior)
{
var structuralType = (StructuralType)record.DataRecordInfo.RecordType.EdmType;
var metadata = translator.GetExtractorMetadata(stateEntry.EntitySet, structuralType);
var key = stateEntry.EntityKey;
var nestedValues = new PropagatorResult[record.FieldCount];
for (var ordinal = 0; ordinal < nestedValues.Length; ordinal++)
{
nestedValues[ordinal] = metadata.RetrieveMember(
stateEntry, record, useCurrentValues, key,
ordinal, modifiedPropertiesBehavior);
}
return PropagatorResult.CreateStructuralValue(nestedValues, structuralType, isModified);
}
// Adds and register a DbParameter to the current command.
internal void SetParameterValue(
PropagatorResult result,
StorageModificationFunctionParameterBinding parameterBinding, UpdateTranslator translator)
{
// retrieve DbParameter
var parameter = _dbCommand.Parameters[parameterBinding.Parameter.Name];
var parameterType = parameterBinding.Parameter.TypeUsage;
var parameterValue = translator.KeyManager.GetPrincipalValue(result);
translator.SetParameterValue(parameter, parameterType, parameterValue);
// if the parameter corresponds to an identifier (key component), remember this fact in case
// it's important for dependency ordering (e.g., output the identifier before creating it)
var identifier = result.Identifier;
if (PropagatorResult.NullIdentifier != identifier)
{
const int initialSize = 2; // expect on average less than two input identifiers per command
if (null == _inputIdentifiers)
{
_inputIdentifiers = new List<KeyValuePair<int, DbParameter>>(initialSize);
}
foreach (var principal in translator.KeyManager.GetPrincipals(identifier))
{
_inputIdentifiers.Add(new KeyValuePair<int, DbParameter>(principal, parameter));
}
}
}
/// <summary>
/// Initializes a new converter given a command tree context. Initializes a new record layout cache.
/// </summary>
/// <param name="updateTranslator">Sets <see cref="m_updateTranslator" /></param>
internal RecordConverter(UpdateTranslator updateTranslator)
{
m_updateTranslator = updateTranslator;
}
internal ExtractorMetadata(EntitySetBase entitySetBase, StructuralType type, UpdateTranslator translator)
{
Contract.Requires(entitySetBase != null);
Contract.Requires(type != null);
Contract.Requires(translator != null);
m_type = type;
m_translator = translator;
EntityType entityType = null;
Set<EdmMember> keyMembers;
Set<EdmMember> foreignKeyMembers;
switch (type.BuiltInTypeKind)
{
case BuiltInTypeKind.RowType:
// for row types (which are actually association end key records in disguise), all members
// are keys
keyMembers = new Set<EdmMember>(((RowType)type).Properties).MakeReadOnly();
foreignKeyMembers = Set<EdmMember>.Empty;
break;
case BuiltInTypeKind.EntityType:
entityType = (EntityType)type;
keyMembers = new Set<EdmMember>(entityType.KeyMembers).MakeReadOnly();
foreignKeyMembers = new Set<EdmMember>(
((EntitySet)entitySetBase).ForeignKeyDependents
.SelectMany(fk => fk.Item2.ToProperties)).MakeReadOnly();
break;
default:
keyMembers = Set<EdmMember>.Empty;
foreignKeyMembers = Set<EdmMember>.Empty;
break;
}
var members = TypeHelpers.GetAllStructuralMembers(type);
m_memberMap = new MemberInformation[members.Count];
// for each member, cache expensive to compute metadata information
for (var ordinal = 0; ordinal < members.Count; ordinal++)
{
var member = members[ordinal];
// figure out flags for this member
var flags = PropagatorFlags.NoFlags;
var entityKeyOrdinal = default(int?);
if (keyMembers.Contains(member))
{
flags |= PropagatorFlags.Key;
if (null != entityType)
{
entityKeyOrdinal = entityType.KeyMembers.IndexOf(member);
}
}
if (foreignKeyMembers.Contains(member))
{
flags |= PropagatorFlags.ForeignKey;
}
if (MetadataHelper.GetConcurrencyMode(member)
== ConcurrencyMode.Fixed)
{
flags |= PropagatorFlags.ConcurrencyValue;
}
// figure out whether this member is mapped to any server generated
// columns in the store
var isServerGenerated = m_translator.ViewLoader.IsServerGen(entitySetBase, m_translator.MetadataWorkspace, member);
// figure out whether member nullability is used as a condition in mapping
var isNullConditionMember = m_translator.ViewLoader.IsNullConditionMember(
entitySetBase, m_translator.MetadataWorkspace, member);
// add information about this member
m_memberMap[ordinal] = new MemberInformation(
ordinal, entityKeyOrdinal, flags, member, isServerGenerated, isNullConditionMember);
}
}
private SourceInterpreter(UpdateTranslator translator, EntitySet sourceTable)
{
m_stateEntries = new List<IEntityStateEntry>();
m_translator = translator;
m_sourceTable = sourceTable;
}
/// <summary>
/// Initialize an update compiler.
/// </summary>
/// <param name="translator"> Update context. </param>
internal UpdateCompiler(UpdateTranslator translator)
{
m_translator = translator;
}
protected virtual long GetRowsAffected(long rowsAffected, UpdateTranslator translator)
{
// if an explicit rows affected parameter exists, use this value instead
if (null != _rowsAffectedParameter)
{
// by design, negative row counts indicate failure iff. an explicit rows
// affected parameter is used
if (DBNull.Value.Equals(_rowsAffectedParameter.Value))
{
rowsAffected = 0;
}
else
{
try
{
rowsAffected = Convert.ToInt64(_rowsAffectedParameter.Value, CultureInfo.InvariantCulture);
}
catch (Exception e)
{
if (e.RequiresContext())
{
// wrap the exception
throw new UpdateException(
Strings.Update_UnableToConvertRowsAffectedParameter(
_rowsAffectedParameter.ParameterName, typeof(Int64).FullName),
e, GetStateEntries(translator).Cast<ObjectStateEntry>().Distinct());
}
throw;
}
}
}
return rowsAffected;
}
private int GetColumnOrdinal(UpdateTranslator translator, DbDataReader reader, string columnName)
{
int columnOrdinal;
try
{
columnOrdinal = reader.GetOrdinal(columnName);
}
catch (IndexOutOfRangeException)
{
throw new UpdateException(
Strings.Update_MissingResultColumn(columnName), null, GetStateEntries(translator).Cast<ObjectStateEntry>().Distinct());
}
return columnOrdinal;
}
internal override IList<IEntityStateEntry> GetStateEntries(UpdateTranslator translator)
{
var stateEntries = new List<IEntityStateEntry>(2);
if (null != OriginalValues)
{
foreach (var stateEntry in SourceInterpreter.GetAllStateEntries(
OriginalValues, translator, Table))
{
stateEntries.Add(stateEntry);
}
}
if (null != CurrentValues)
{
foreach (var stateEntry in SourceInterpreter.GetAllStateEntries(
CurrentValues, translator, Table))
{
stateEntries.Add(stateEntry);
}
}
return stateEntries;
}
/// <summary>
/// Gets state entries contributing to this function. Supports error reporting.
/// </summary>
internal override IList<IEntityStateEntry> GetStateEntries(UpdateTranslator translator)
{
return _stateEntries;
}
