/// <summary>
/// Determine the best of the given targets for the next mining laser.
/// </summary>
/// <param name="chosenTargets"></param>
/// <param name="activeModuleCountByTargetId"></param>
/// <param name="intendedModuleCountByTargetId"></param>
/// <returns></returns>
private IEntityWrapper GetBestTargetForMiningLaser(IEnumerable <IEntityWrapper> chosenTargets, IDictionary <long, int> activeModuleCountByTargetId,
IDictionary <long, int> intendedModuleCountByTargetId)
{
var methodName = "GetBestTargetForMiningLaser";
LogTrace(methodName);
IEntityWrapper chosenTarget = null;
foreach (var target in chosenTargets)
{
var activeModuleCount = activeModuleCountByTargetId[target.ID];
var intendedModuleCount = intendedModuleCountByTargetId[target.ID];
var neededModules = intendedModuleCount - activeModuleCount;
if (neededModules <= 0)
{
continue;
}
chosenTarget = target;
activeModuleCountByTargetId[target.ID]++;
break;
}
return(chosenTarget);
}
// <summary>
// Disconnected removes are not supported for an EntityReference so we should report this as an error.
// </summary>
// <param name="wrappedEntity"> The entity to remove from the related end in a disconnected state. </param>
internal override bool DisconnectedRemove(IEntityWrapper wrappedEntity)
{
DebugCheck.NotNull(wrappedEntity);
CheckOwnerNull();
return(false);
}
internal override void ClearCollectionOrRef(IEntityWrapper wrappedEntity, RelationshipNavigation navigation, bool doCascadeDelete)
{
if (null != _wrappedRelatedEntities)
{
//copy into list because changing collection member is not allowed during enumeration.
// If possible avoid copying into list.
var tempCopy = new List <IEntityWrapper>(_wrappedRelatedEntities.Values);
foreach (var wrappedCurrent in tempCopy)
{
// Following condition checks if we have already visited this graph node. If its true then
// we should not do fixup because that would cause circular loop
if ((wrappedEntity.Entity == wrappedCurrent.Entity) &&
(navigation.Equals(RelationshipNavigation)))
{
Remove(
wrappedCurrent, /*fixup*/ false, /*deleteEntity*/ false, /*deleteOwner*/ false, /*applyReferentialConstraints*/
false, /*preserveForeignKey*/ false);
}
else
{
Remove(
wrappedCurrent, /*fixup*/ true, doCascadeDelete, /*deleteOwner*/ false, /*applyReferentialConstraints*/ false,
/*preserveForeignKey*/ false);
}
}
Debug.Assert(
_wrappedRelatedEntities.Count == 0, "After removing all related entities local collection count should be zero");
}
}
internal EntityKey ValidateOwnerWithRIConstraints(IEntityWrapper targetEntity, EntityKey targetEntityKey, bool checkBothEnds)
{
EntityKey ownerKey = WrappedOwner.EntityKey;
// Check if Referential Constraints are violated
if ((object)ownerKey != null &&
!ownerKey.IsTemporary &&
IsDependentEndOfReferentialConstraint(checkIdentifying: true))
{
Debug.Assert(CachedForeignKey != null || EntityKey == null, "CachedForeignKey should not be null if EntityKey is not null.");
ValidateSettingRIConstraints(targetEntity,
targetEntityKey == null,
(this.CachedForeignKey != null && this.CachedForeignKey != targetEntityKey));
}
else if (checkBothEnds && targetEntity != null && targetEntity.Entity != null)
{
EntityReference otherEnd = GetOtherEndOfRelationship(targetEntity) as EntityReference;
if (otherEnd != null)
{
otherEnd.ValidateOwnerWithRIConstraints(WrappedOwner, ownerKey, checkBothEnds: false);
}
}
return(ownerKey);
}
public IEntityWrapper HandleEntity <TEntity>(
IEntityWrapper wrappedEntity,
EntityKey entityKey,
EntitySet entitySet)
{
IEntityWrapper wrappedEntity1 = wrappedEntity;
if ((object)entityKey != null)
{
EntityEntry entityEntry = this.Context.ObjectStateManager.FindEntityEntry(entityKey);
if (entityEntry != null && !entityEntry.IsKeyEntry)
{
this.UpdateEntry <TEntity>(wrappedEntity, entityEntry);
wrappedEntity1 = entityEntry.WrappedEntity;
}
else
{
this.RegisterMaterializedEntityForEvent(wrappedEntity1);
if (entityEntry == null)
{
this.Context.ObjectStateManager.AddEntry(wrappedEntity, entityKey, entitySet, nameof(HandleEntity), false);
}
else
{
this.Context.ObjectStateManager.PromoteKeyEntry(entityEntry, wrappedEntity, false, true, false);
}
}
}
return(wrappedEntity1);
}
public bool IsRatTarget(IEntityWrapper entity)
{
//if it's not an npc, return false.
if (entity.IsPC || !IsNpc(entity))
{
return(false);
}
//If it's a celestial, station, or asteroid return false
switch (entity.CategoryID)
{
case (int)CategoryIDs.Station:
case (int)CategoryIDs.Celestial:
case (int)CategoryIDs.Asteroid:
case (int)CategoryIDs.Charge:
return(false);
}
//If it's a collidable, jetcan, or spawn container, return false.
switch (entity.GroupID)
{
case (int)GroupIDs.LargeCollidableObject:
case (int)GroupIDs.LargeCollidableShip:
case (int)GroupIDs.LargeCollidableStructure:
case (int)GroupIDs.SpawnContainer:
case (int)GroupIDs.CargoContainer:
case (int)GroupIDs.DeadspaceOverseersStructure:
case (int)GroupIDs.CombatDrone:
case (int)GroupIDs.Orbital_Infrastructure:
return(false);
}
return(true);
}
internal void UpdateForeignKeyValues(IEntityWrapper dependentEntity, EntityKey principalKey)
{
ReferentialConstraint referentialConstraint = ((AssociationType)this.RelationMetadata).ReferentialConstraints[0];
ObjectStateManager objectStateManager = this.ObjectContext.ObjectStateManager;
objectStateManager.TransactionManager.BeginForeignKeyUpdate(this);
try
{
EntitySet entitySet = ((AssociationSet)this.RelationshipSet).AssociationSetEnds[this.FromEndMember.Name].EntitySet;
StateManagerTypeMetadata managerTypeMetadata = objectStateManager.GetOrAddStateManagerTypeMetadata(dependentEntity.IdentityType, entitySet);
for (int index = 0; index < referentialConstraint.FromProperties.Count; ++index)
{
object valueByName = principalKey.FindValueByName(referentialConstraint.FromProperties[index].Name);
int olayerMemberName = managerTypeMetadata.GetOrdinalforOLayerMemberName(referentialConstraint.ToProperties[index].Name);
object x = managerTypeMetadata.Member(olayerMemberName).GetValue(dependentEntity.Entity);
if (!ByValueEqualityComparer.Default.Equals(x, valueByName))
{
dependentEntity.SetCurrentValue(dependentEntity.ObjectStateEntry, managerTypeMetadata.Member(olayerMemberName), -1, dependentEntity.Entity, valueByName);
}
}
this.SetCachedForeignKey(principalKey, dependentEntity.ObjectStateEntry);
if (this.WrappedOwner.ObjectStateEntry == null)
{
return;
}
objectStateManager.ForgetEntryWithConceptualNull(this.WrappedOwner.ObjectStateEntry, false);
}
finally
{
objectStateManager.TransactionManager.EndForeignKeyUpdate();
}
}
internal override bool CheckReferentialConstraintPrincipalProperty(
EntityEntry ownerEntry,
ReferentialConstraint constraint)
{
EntityKey principalKey;
if (!this.IsEmpty())
{
IEntityWrapper referenceValue = this.ReferenceValue;
if (referenceValue.ObjectStateEntry != null && referenceValue.ObjectStateEntry.State == EntityState.Added)
{
return(true);
}
principalKey = this.ExtractPrincipalKey(referenceValue);
}
else
{
if (this.ToEndMember.RelationshipMultiplicity != RelationshipMultiplicity.ZeroOrOne && this.ToEndMember.RelationshipMultiplicity != RelationshipMultiplicity.One || !(this.DetachedEntityKey != (EntityKey)null))
{
return(true);
}
principalKey = !this.IsForeignKey || this.ObjectContext.ObjectStateManager.TransactionManager.IsAddTracking || this.ObjectContext.ObjectStateManager.TransactionManager.IsAttachTracking ? this.DetachedEntityKey : this.EntityKey;
}
return(RelatedEnd.VerifyRIConstraintsWithRelatedEntry(constraint, new Func <string, object>(ownerEntry.GetCurrentEntityValue), principalKey));
}
internal EntityReference(
IEntityWrapper wrappedOwner,
RelationshipNavigation navigation,
IRelationshipFixer relationshipFixer)
: base(wrappedOwner, navigation, relationshipFixer)
{
}
internal override void VerifyType(IEntityWrapper wrappedEntity)
{
if (!CanSetEntityType(wrappedEntity))
{
throw EntityUtil.InvalidContainedTypeReference(wrappedEntity.Entity.GetType().FullName, typeof(TEntity).FullName);
}
}
private void BreakAction(IEntityWrapper targetEntity)
{
var methodName = "BreakAction";
// ReSharper disable SpecifyACultureInStringConversionExplicitly
LogTrace(methodName, "Target Entity: {0}", targetEntity == null ? "null" : targetEntity.ID.ToString());
// ReSharper restore SpecifyACultureInStringConversionExplicitly
if (StealthBot.Movement.IsMoving)
{
StealthBot.Movement.StopCurrentMovement(true);
}
if (targetEntity == null)
{
return;
}
if (StealthBot.TargetQueue.IsQueued(targetEntity.ID))
{
StealthBot.TargetQueue.DequeueTarget(targetEntity.ID);
}
if (targetEntity.IsLockedTarget)
{
targetEntity.UnlockTarget();
}
}
/// <summary>
/// Called to create a new wrapper outside of the normal materialization process.
/// This method is typically used when a new entity is created outside the context and then is
/// added or attached. The materializer bypasses this method and calls wrapper constructors
/// directory for performance reasons.
/// This method does not check whether or not the wrapper already exists in the context.
/// </summary>
/// <param name="entity">The entity for which a wrapper will be created</param>
/// <param name="key">The key associated with that entity, or null</param>
/// <returns>The new wrapper instance</returns>
internal static IEntityWrapper CreateNewWrapper(object entity, EntityKey key)
{
Debug.Assert(!(entity is IEntityWrapper), "Object is an IEntityWrapper instance instead of the raw entity.");
if (entity == null)
{
return(NullEntityWrapper.NullWrapper);
}
// We used a cache of functions based on the actual type of entity that we need to wrap.
// Creatung these functions is slow, but once they are created they are relatively fast.
IEntityWrapper wrappedEntity = _delegateCache.Evaluate(entity.GetType())(entity);
wrappedEntity.RelationshipManager.SetWrappedOwner(wrappedEntity, entity);
// We cast to object here to avoid calling the overridden != operator on EntityKey.
// This creates a very small perf gain, which is none-the-less significant for lean no-tracking cases.
if ((object)key != null && (object)wrappedEntity.EntityKey == null)
{
wrappedEntity.EntityKey = key;
}
// If the entity is a proxy, set the wrapper to match
EntityProxyTypeInfo proxyTypeInfo;
if (EntityProxyFactory.TryGetProxyType(entity.GetType(), out proxyTypeInfo))
{
proxyTypeInfo.SetEntityWrapper(wrappedEntity);
}
return(wrappedEntity);
}
internal EntityCollection(
IEntityWrapper wrappedOwner,
RelationshipNavigation navigation,
IRelationshipFixer relationshipFixer)
: base(wrappedOwner, navigation, relationshipFixer)
{
}
internal override void AddToLocalCache(IEntityWrapper wrappedEntity, bool applyConstraints)
{
if (wrappedEntity == this._wrappedCachedValue)
{
return;
}
TransactionManager transactionManager = this.ObjectContext != null ? this.ObjectContext.ObjectStateManager.TransactionManager : (TransactionManager)null;
if (applyConstraints && this._wrappedCachedValue.Entity != null && (transactionManager == null || transactionManager.ProcessedEntities == null || transactionManager.ProcessedEntities.Contains(this._wrappedCachedValue)))
{
throw new InvalidOperationException(Strings.EntityReference_CannotAddMoreThanOneEntityToEntityReference((object)this.RelationshipNavigation.To, (object)this.RelationshipNavigation.RelationshipName));
}
if (transactionManager != null)
{
if (wrappedEntity.Entity != null)
{
transactionManager.BeginRelatedEndAdd();
}
}
try
{
this.ClearCollectionOrRef((IEntityWrapper)null, (RelationshipNavigation)null, false);
this._wrappedCachedValue = wrappedEntity;
this._cachedValue = (TEntity)wrappedEntity.Entity;
}
finally
{
if (transactionManager != null && transactionManager.IsRelatedEndAdd)
{
transactionManager.EndRelatedEndAdd();
}
}
}
internal override bool CheckIfNavigationPropertyContainsEntity(IEntityWrapper wrapper)
{
Debug.Assert(RelationshipNavigation != null, "null RelationshipNavigation");
// If the navigation property doesn't exist (e.g. unidirectional prop), then it can't contain the entity.
if (!TargetAccessor.HasProperty)
{
return(false);
}
var value = WrappedOwner.GetNavigationPropertyValue(this);
if (value != null)
{
var enumerable = value as IEnumerable;
if (enumerable == null)
{
throw new EntityException(
Strings.ObjectStateEntry_UnableToEnumerateCollection(
TargetAccessor.PropertyName, WrappedOwner.Entity.GetType().FullName));
}
foreach (var o in enumerable)
{
if (ReferenceEquals(o, wrapper.Entity))
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// Method called by proxy interceptor delegate to provide lazy loading behavior for navigation properties.
/// </summary>
/// <typeparam name="TItem">property type</typeparam>
/// <param name="propertyValue">The property value whose associated relationship is to be loaded.</param>
/// <param name="relationshipName">String name of the relationship.</param>
/// <param name="targetRoleName">String name of the related end to be loaded for the relationship specified by <paramref name="relationshipName"/>.</param>
/// <param name="wrapperObject">Entity wrapper object used to retrieve RelationshipManager for the proxied entity.</param>
/// <returns>
/// True if the value instance was mutated and can be returned
/// False if the class should refetch the value because the instance has changed
/// </returns>
private static bool LoadProperty <TItem>(TItem propertyValue, string relationshipName, string targetRoleName, bool mustBeNull, object wrapperObject) where TItem : class
{
// Only attempt to load collection if:
//
// 1. Collection is non-null.
// 2. ObjectContext.ContextOptions.LazyLoadingEnabled is true
// 3. A non-null RelationshipManager can be retrieved (this is asserted).
// 4. The EntityCollection is not already loaded.
Debug.Assert(wrapperObject == null || wrapperObject is IEntityWrapper, "wrapperObject must be an IEntityWrapper");
IEntityWrapper wrapper = (IEntityWrapper)wrapperObject; // We want an exception if the cast fails.
if (wrapper != null && wrapper.Context != null)
{
RelationshipManager relationshipManager = wrapper.RelationshipManager;
Debug.Assert(relationshipManager != null, "relationshipManager should be non-null");
if (relationshipManager != null && (!mustBeNull || propertyValue == null))
{
RelatedEnd relatedEnd = relationshipManager.GetRelatedEndInternal(relationshipName, targetRoleName);
relatedEnd.DeferredLoad();
}
}
return(propertyValue != null);
}
internal override void ClearCollectionOrRef(
IEntityWrapper wrappedEntity,
RelationshipNavigation navigation,
bool doCascadeDelete)
{
if (wrappedEntity == null)
{
wrappedEntity = NullEntityWrapper.NullWrapper;
}
if (this._wrappedCachedValue.Entity != null)
{
if (wrappedEntity.Entity == this._wrappedCachedValue.Entity && navigation.Equals((object)this.RelationshipNavigation))
{
this.Remove(this._wrappedCachedValue, false, false, false, false, false);
}
else
{
this.Remove(this._wrappedCachedValue, true, doCascadeDelete, false, true, false);
}
}
else if (this.WrappedOwner.Entity != null && this.WrappedOwner.Context != null && !this.UsingNoTracking)
{
this.WrappedOwner.Context.ObjectStateManager.GetEntityEntry(this.WrappedOwner.Entity).DeleteRelationshipsThatReferenceKeys(this.RelationshipSet, this.ToEndMember);
}
if (this.WrappedOwner.Entity == null)
{
return;
}
this.DetachedEntityKey = (EntityKey)null;
}
internal override void VerifyType(IEntityWrapper wrappedEntity)
{
if (!this.CanSetEntityType(wrappedEntity))
{
throw new InvalidOperationException(Strings.RelatedEnd_InvalidContainedType_Reference((object)wrappedEntity.Entity.GetType().FullName, (object)typeof(TEntity).FullName));
}
}
private void CheckClearedEntryOnSpan(
object targetValue, IEntityWrapper wrappedSource, EntityKey sourceKey, AssociationEndMember targetMember)
{
// If a relationship does not exist on the server but does exist on the client,
// we may need to remove it, depending on the current state and the MergeOption
if ((null != (object)sourceKey) &&
(null == targetValue) &&
(MergeOption == MergeOption.PreserveChanges ||
MergeOption == MergeOption.OverwriteChanges))
{
// When the spanned value is null, it may be because the spanned association applies to a
// subtype of the entity's type, and the entity is not actually an instance of that type.
var sourceEnd = MetadataHelper.GetOtherAssociationEnd(targetMember);
EdmType expectedSourceType = ((RefType)sourceEnd.TypeUsage.EdmType).ElementType;
TypeUsage entityTypeUsage;
if (!Context.Perspective.TryGetType(wrappedSource.IdentityType, out entityTypeUsage) ||
entityTypeUsage.EdmType.EdmEquals(expectedSourceType) ||
TypeSemantics.IsSubTypeOf(entityTypeUsage.EdmType, expectedSourceType))
{
// Otherwise, the source entity is the correct type (exactly or a subtype) for the source
// end of the spanned association, so validate that the relationhip that was spanned is
// part of the Container owning the EntitySet of the root entity.
// This can be done by comparing the EntitySet of the row's entity to the relationships
// in the Container and their AssociationSetEnd's type
CheckClearedEntryOnSpan(sourceKey, targetMember);
}
}
}
private void IncludeEntityKey(bool doAttach)
{
ObjectStateManager objectStateManager = this.ObjectContext.ObjectStateManager;
bool flag1 = false;
bool flag2 = false;
EntityEntry entityEntry = objectStateManager.FindEntityEntry(this.DetachedEntityKey);
if (entityEntry == null)
{
flag2 = true;
flag1 = true;
}
else if (entityEntry.IsKeyEntry)
{
if (this.FromEndMember.RelationshipMultiplicity != RelationshipMultiplicity.Many)
{
foreach (RelationshipEntry relationshipEntry in this.ObjectContext.ObjectStateManager.FindRelationshipsByKey(this.DetachedEntityKey))
{
if (relationshipEntry.IsSameAssociationSetAndRole((AssociationSet)this.RelationshipSet, (AssociationEndMember)this.ToEndMember, this.DetachedEntityKey) && relationshipEntry.State != EntityState.Deleted)
{
throw new InvalidOperationException(Strings.ObjectStateManager_EntityConflictsWithKeyEntry);
}
}
}
flag1 = true;
}
else
{
IEntityWrapper wrappedEntity = entityEntry.WrappedEntity;
if (entityEntry.State == EntityState.Deleted)
{
throw new InvalidOperationException(Strings.RelatedEnd_UnableToAddRelationshipWithDeletedEntity);
}
RelatedEnd relatedEndInternal = wrappedEntity.RelationshipManager.GetRelatedEndInternal(this.RelationshipName, this.RelationshipNavigation.From);
if (this.FromEndMember.RelationshipMultiplicity != RelationshipMultiplicity.Many && !relatedEndInternal.IsEmpty())
{
throw new InvalidOperationException(Strings.ObjectStateManager_EntityConflictsWithKeyEntry);
}
this.Add(wrappedEntity, true, doAttach, false, true, true);
objectStateManager.TransactionManager.PopulatedEntityReferences.Add((EntityReference)this);
}
if (!flag1 || this.IsForeignKey)
{
return;
}
if (flag2)
{
EntitySet entitySet = this.DetachedEntityKey.GetEntitySet(this.ObjectContext.MetadataWorkspace);
objectStateManager.AddKeyEntry(this.DetachedEntityKey, entitySet);
}
EntityKey entityKey = this.WrappedOwner.EntityKey;
if ((object)entityKey == null)
{
throw Error.EntityKey_UnexpectedNull();
}
RelationshipWrapper wrapper = new RelationshipWrapper((AssociationSet)this.RelationshipSet, this.RelationshipNavigation.From, entityKey, this.RelationshipNavigation.To, this.DetachedEntityKey);
objectStateManager.AddNewRelation(wrapper, doAttach ? EntityState.Unchanged : EntityState.Added);
}
// <summary>
// Call to ensure a single full-spanned element is added into
// the state manager properly.
// </summary>
public IEntityWrapper HandleFullSpanElement(
IEntityWrapper wrappedSource, IEntityWrapper wrappedSpannedEntity, AssociationEndMember targetMember)
{
DebugCheck.NotNull(wrappedSource);
if (wrappedSource.Entity == null)
{
return(wrappedSource);
}
List <IEntityWrapper> spannedEntities = null;
if (wrappedSpannedEntity.Entity != null)
{
// There was a single entity in the column
// Create a list so we can perform the same logic as a collection of entities
spannedEntities = new List <IEntityWrapper>(1);
spannedEntities.Add(wrappedSpannedEntity);
}
else
{
var sourceKey = wrappedSource.EntityKey;
CheckClearedEntryOnSpan(null, wrappedSource, sourceKey, targetMember);
}
FullSpanAction(wrappedSource, spannedEntities, targetMember);
return(wrappedSource);
}
protected void RegisterMaterializedEntityForEvent(IEntityWrapper wrappedEntity)
{
if (_materializedEntities != null)
{
_materializedEntities.Add(wrappedEntity);
}
}
internal override bool CheckIfNavigationPropertyContainsEntity(IEntityWrapper wrapper)
{
Debug.Assert(this.RelationshipNavigation != null, "null RelationshipNavigation");
// If the navigation property doesn't exist (e.g. unidirectional prop), then it can't contain the entity.
if (!TargetAccessor.HasProperty)
{
return(false);
}
object value = this.WrappedOwner.GetNavigationPropertyValue(this);
if (value != null)
{
if (!(value is IEnumerable))
{
throw new EntityException(System.Data.Entity.Strings.ObjectStateEntry_UnableToEnumerateCollection(
this.TargetAccessor.PropertyName, this.WrappedOwner.Entity.GetType().FullName));
}
//
foreach (object o in (value as IEnumerable))
{
if (Object.Equals(o, wrapper.Entity))
{
return(true);
}
}
}
return(false);
}
internal override bool CheckIfNavigationPropertyContainsEntity(IEntityWrapper wrapper)
{
if (!this.TargetAccessor.HasProperty)
{
return(false);
}
bool state = this.DisableLazyLoading();
try
{
object navigationPropertyValue = this.WrappedOwner.GetNavigationPropertyValue((RelatedEnd)this);
if (navigationPropertyValue != null)
{
IEnumerable <TEntity> source = navigationPropertyValue as IEnumerable <TEntity>;
if (source == null)
{
throw new EntityException(Strings.ObjectStateEntry_UnableToEnumerateCollection((object)this.TargetAccessor.PropertyName, (object)this.WrappedOwner.Entity.GetType().FullName));
}
HashSet <TEntity> entitySet = navigationPropertyValue as HashSet <TEntity>;
if (!wrapper.OverridesEqualsOrGetHashCode || entitySet != null && entitySet.Comparer is ObjectReferenceEqualityComparer)
{
return(source.Contains <TEntity>((TEntity)wrapper.Entity));
}
return(source.Any <TEntity>((Func <TEntity, bool>)(o => object.ReferenceEquals((object)o, wrapper.Entity))));
}
}
finally
{
this.ResetLazyLoading(state);
}
return(false);
}
internal override bool CheckIfNavigationPropertyContainsEntity(IEntityWrapper wrapper)
{
if (!this.TargetAccessor.HasProperty)
{
return(false);
}
return(object.ReferenceEquals(this.WrappedOwner.GetNavigationPropertyValue((RelatedEnd)this), wrapper.Entity));
}
internal override bool ContainsEntity(IEntityWrapper wrappedEntity)
{
if (this._wrappedCachedValue.Entity != null)
{
return(this._wrappedCachedValue.Entity == wrappedEntity.Entity);
}
return(false);
}
internal override bool RemoveFromObjectCache(IEntityWrapper wrappedEntity)
{
if (this.TargetAccessor.HasProperty)
{
this.WrappedOwner.RemoveNavigationPropertyValue((RelatedEnd)this, wrappedEntity.Entity);
}
return(true);
}
internal override void AddToObjectCache(IEntityWrapper wrappedEntity)
{
if (!this.TargetAccessor.HasProperty)
{
return;
}
this.WrappedOwner.SetNavigationPropertyValue((RelatedEnd)this, wrappedEntity.Entity);
}
internal override void AddToObjectCache(IEntityWrapper wrappedEntity)
{
// For POCO entities - set the CLR reference
if (this.TargetAccessor.HasProperty)
{
this.WrappedOwner.SetNavigationPropertyValue(this, wrappedEntity.Entity);
}
}
internal EntityReference(
IEntityWrapper wrappedOwner,
RelationshipNavigation navigation,
IRelationshipFixer relationshipFixer)
: base(wrappedOwner, navigation, relationshipFixer)
{
this._wrappedCachedValue = NullEntityWrapper.NullWrapper;
}
public GetHelper(IEntityWrapper entityWrapper)
{
_entityWrapper = entityWrapper;
}
public void SetUp()
{
_entityWrapper = Substitute.For<IEntityWrapper>();
_postHelper = new PostHelper(_entityWrapper);
}
/// <summary>
/// Set the proxy object's private entity wrapper field value to the specified entity wrapper object.
/// The proxy object (representing the wrapped entity) is retrieved from the wrapper itself.
/// </summary>
/// <param name="wrapper">Wrapper object to be referenced by the proxy.</param>
/// <returns>
/// The supplied entity wrapper.
/// This is done so that this method can be more easily composed within lambda expressions (such as in the materializer).
/// </returns>
internal IEntityWrapper SetEntityWrapper(IEntityWrapper wrapper)
{
Debug.Assert(wrapper != null, "wrapper must be non-null");
Debug.Assert(wrapper.Entity != null, "proxy must be non-null");
return Proxy_SetEntityWrapper(wrapper.Entity, wrapper) as IEntityWrapper;
}
private EntityKey ExtractPrincipalKey(IEntityWrapper wrappedRelatedEntity)
{
var principalEntitySet = GetTargetEntitySetFromRelationshipSet();
// get or create a key to use to compare the values -- the target entity might not have been attached
// yet so it may not have a key, but we can create one here to use for checking the values
var principalKey = wrappedRelatedEntity.EntityKey;
if (null != (object)principalKey
&& !principalKey.IsTemporary)
{
// Validate the key here because we need to get values from it for verification
// and that will fail if the key is malformed.
// Verify only if the key already exists.
EntityUtil.ValidateEntitySetInKey(principalKey, principalEntitySet);
principalKey.ValidateEntityKey(ObjectContext.MetadataWorkspace, principalEntitySet);
}
else
{
principalKey = ObjectContext.ObjectStateManager.CreateEntityKey(principalEntitySet, wrappedRelatedEntity.Entity);
}
return principalKey;
}
internal override void AddEntityToObjectStateManager(IEntityWrapper wrappedEntity, bool doAttach)
{
base.AddEntityToObjectStateManager(wrappedEntity, doAttach);
// Now that we know we have a valid EntityKey for the target entity, verify that it matches the detached EntityKey, if there is one
if (DetachedEntityKey != null)
{
var targetKey = wrappedEntity.EntityKey;
if (DetachedEntityKey != targetKey)
{
throw new InvalidOperationException(Strings.EntityReference_EntityKeyValueMismatch);
}
}
// else -- null just means the key isn't set, so the target entity key doesn't also have to be null
}
/// <summary>
/// Takes key values from the given principal key and transfers them to the foreign key properties
/// of the dependant entry. This method requires a context, but does not require that either
/// entity or key is in the context. This allows it to work in NoTracking cases where we have the context
/// but we're not tracked by that context.
/// </summary>
/// <param name="dependentEntity">The entity into which foreign key values will be written</param>
/// <param name="principalEntity">The key from which key values will be obtained</param>
internal void UpdateForeignKeyValues(IEntityWrapper dependentEntity, EntityKey principalKey)
{
Debug.Assert(dependentEntity.Entity != null, "dependentEntity.Entity == null");
Debug.Assert(principalKey != null, "principalKey == null");
Debug.Assert(!principalKey.IsTemporary, "Cannot update from a temp key");
Debug.Assert(IsForeignKey, "cannot update foreign key values if the relationship is not a FK");
var constraint = ((AssociationType)RelationMetadata).ReferentialConstraints[0];
Debug.Assert(constraint != null, "null constraint");
var stateManager = ObjectContext.ObjectStateManager;
stateManager.TransactionManager.BeginForeignKeyUpdate(this);
try
{
var dependentEntitySet = ((AssociationSet)RelationshipSet).AssociationSetEnds[FromEndMember.Name].EntitySet;
var dependentTypeMetadata = stateManager.GetOrAddStateManagerTypeMetadata(dependentEntity.IdentityType, dependentEntitySet);
for (var i = 0; i < constraint.FromProperties.Count; i++)
{
var value = principalKey.FindValueByName(constraint.FromProperties[i].Name);
var dependentOrdinal = dependentTypeMetadata.GetOrdinalforOLayerMemberName(constraint.ToProperties[i].Name);
var currentValue = dependentTypeMetadata.Member(dependentOrdinal).GetValue(dependentEntity.Entity);
if (!ByValueEqualityComparer.Default.Equals(currentValue, value))
{
dependentEntity.SetCurrentValue(
dependentEntity.ObjectStateEntry,
dependentTypeMetadata.Member(dependentOrdinal),
-1,
dependentEntity.Entity,
value);
}
}
SetCachedForeignKey(principalKey, dependentEntity.ObjectStateEntry);
if (WrappedOwner.ObjectStateEntry != null)
{
stateManager.ForgetEntryWithConceptualNull(WrappedOwner.ObjectStateEntry, resetAllKeys: false);
}
}
finally
{
stateManager.TransactionManager.EndForeignKeyUpdate();
}
}
internal static bool TryGetProxyWrapper(object instance, out IEntityWrapper wrapper)
{
Debug.Assert(instance != null, "the instance should not be null");
wrapper = null;
EntityProxyTypeInfo proxyTypeInfo;
if (IsProxyType(instance.GetType()) &&
TryGetProxyType(instance.GetType(), out proxyTypeInfo))
{
wrapper = proxyTypeInfo.GetEntityWrapper(instance);
}
return wrapper != null;
}
/// <summary>
/// Takes key values from the given principal entity and transfers them to the foreign key properties
/// of the dependant entry. This method requires a context, but does not require that either
/// entity is in the context. This allows it to work in NoTracking cases where we have the context
/// but we're not tracked by that context.
/// </summary>
/// <param name="dependentEntity">The entity into which foreign key values will be written</param>
/// <param name="principalEntity">The entity from which key values will be obtained</param>
/// <param name="changedFKs">If non-null, then keeps track of FKs that have already been set such that an exception can be thrown if we find conflicting values</param>
/// <param name="forceChange">If true, then the property setter is called even if FK values already match,
/// which causes the FK properties to be marked as modified.</param>
internal void UpdateForeignKeyValues(
IEntityWrapper dependentEntity, IEntityWrapper principalEntity, Dictionary<int, object> changedFKs, bool forceChange)
{
Debug.Assert(dependentEntity.Entity != null, "dependentEntity.Entity == null");
Debug.Assert(principalEntity.Entity != null, "principalEntity.Entity == null");
Debug.Assert(IsForeignKey, "cannot update foreign key values if the relationship is not a FK");
var constraint = ((AssociationType)RelationMetadata).ReferentialConstraints[0];
Debug.Assert(constraint != null, "null constraint");
var isUnchangedDependent = (object)WrappedOwner.EntityKey != null &&
!WrappedOwner.EntityKey.IsTemporary &&
IsDependentEndOfReferentialConstraint(checkIdentifying: true);
var stateManager = ObjectContext.ObjectStateManager;
stateManager.TransactionManager.BeginForeignKeyUpdate(this);
try
{
var principalEntitySet = ((AssociationSet)RelationshipSet).AssociationSetEnds[ToEndMember.Name].EntitySet;
var principalTypeMetadata = stateManager.GetOrAddStateManagerTypeMetadata(principalEntity.IdentityType, principalEntitySet);
var dependentEntitySet = ((AssociationSet)RelationshipSet).AssociationSetEnds[FromEndMember.Name].EntitySet;
var dependentTypeMetadata = stateManager.GetOrAddStateManagerTypeMetadata(dependentEntity.IdentityType, dependentEntitySet);
var principalProps = constraint.FromProperties;
var numValues = principalProps.Count;
string[] keyNames = null;
object[] values = null;
if (numValues > 1)
{
keyNames = principalEntitySet.ElementType.KeyMemberNames;
values = new object[numValues];
}
for (var i = 0; i < numValues; i++)
{
var principalOrdinal = principalTypeMetadata.GetOrdinalforOLayerMemberName(principalProps[i].Name);
var value = principalTypeMetadata.Member(principalOrdinal).GetValue(principalEntity.Entity);
var dependentOrdinal = dependentTypeMetadata.GetOrdinalforOLayerMemberName(constraint.ToProperties[i].Name);
var valueChanging =
!ByValueEqualityComparer.Default.Equals(
dependentTypeMetadata.Member(dependentOrdinal).GetValue(dependentEntity.Entity), value);
if (forceChange || valueChanging)
{
if (isUnchangedDependent)
{
ValidateSettingRIConstraints(
principalEntity, settingToNull: value == null, changingForeignKeyValue: valueChanging);
}
// If we're tracking FK values that have already been set, then compare the value we are about to set
// to the value we previously set for this ordinal, if such a value exists. If they don't match then
// it means that we got conflicting FK values from two different PKs and we should throw.
if (changedFKs != null)
{
object previouslySetValue;
if (changedFKs.TryGetValue(dependentOrdinal, out previouslySetValue))
{
if (!ByValueEqualityComparer.Default.Equals(previouslySetValue, value))
{
throw new InvalidOperationException(Strings.Update_ReferentialConstraintIntegrityViolation);
}
}
else
{
changedFKs[dependentOrdinal] = value;
}
}
dependentEntity.SetCurrentValue(
dependentEntity.ObjectStateEntry,
dependentTypeMetadata.Member(dependentOrdinal),
-1,
dependentEntity.Entity,
value);
}
if (numValues > 1)
{
var keyIndex = Array.IndexOf(keyNames, principalProps[i].Name);
Debug.Assert(keyIndex >= 0 && keyIndex < numValues, "Could not find constraint prop name in entity set key names");
values[keyIndex] = value;
}
else
{
SetCachedForeignKey(new EntityKey(principalEntitySet, value), dependentEntity.ObjectStateEntry);
}
}
if (numValues > 1)
{
SetCachedForeignKey(new EntityKey(principalEntitySet, values), dependentEntity.ObjectStateEntry);
}
if (WrappedOwner.ObjectStateEntry != null)
{
stateManager.ForgetEntryWithConceptualNull(WrappedOwner.ObjectStateEntry, resetAllKeys: false);
}
}
finally
{
stateManager.TransactionManager.EndForeignKeyUpdate();
}
}
internal void ValidateSettingRIConstraints(IEntityWrapper targetEntity, bool settingToNull, bool changingForeignKeyValue)
{
var isNoTracking = targetEntity != null && targetEntity.MergeOption == MergeOption.NoTracking;
if (settingToNull || // setting the principle to null
changingForeignKeyValue
|| // existing key does not match incoming key
(targetEntity != null &&
!isNoTracking &&
(targetEntity.ObjectStateEntry == null || // setting to a detached principle
(EntityKey == null && targetEntity.ObjectStateEntry.State == EntityState.Deleted || // setting to a deleted principle
(CachedForeignKey == null && targetEntity.ObjectStateEntry.State == EntityState.Added)))))
// setting to an added principle
{
throw new InvalidOperationException(Strings.EntityReference_CannotChangeReferentialConstraintProperty);
}
}
internal EntityKey ValidateOwnerWithRIConstraints(IEntityWrapper targetEntity, EntityKey targetEntityKey, bool checkBothEnds)
{
var ownerKey = WrappedOwner.EntityKey;
// Check if Referential Constraints are violated
if ((object)ownerKey != null &&
!ownerKey.IsTemporary
&&
IsDependentEndOfReferentialConstraint(checkIdentifying: true))
{
Debug.Assert(CachedForeignKey != null || EntityKey == null, "CachedForeignKey should not be null if EntityKey is not null.");
ValidateSettingRIConstraints(
targetEntity,
targetEntityKey == null,
(CachedForeignKey != null && CachedForeignKey != targetEntityKey));
}
else if (checkBothEnds && targetEntity != null
&& targetEntity.Entity != null)
{
var otherEnd = GetOtherEndOfRelationship(targetEntity) as EntityReference;
if (otherEnd != null)
{
otherEnd.ValidateOwnerWithRIConstraints(WrappedOwner, ownerKey, checkBothEnds: false);
}
}
return ownerKey;
}
internal static IEnumerable<AssociationType> TryGetAllAssociationTypesFromProxyInfo(IEntityWrapper wrappedEntity)
{
DebugCheck.NotNull(wrappedEntity);
EntityProxyTypeInfo proxyInfo;
return TryGetProxyType(wrappedEntity.Entity.GetType(), out proxyInfo)
? proxyInfo.GetAllAssociationTypes()
: null;
}
/// <summary>
/// A mechanism to lookup AssociationType metadata for proxies for a given entity and association information
/// </summary>
/// <param name="wrappedEntity"> The entity instance used to lookup the proxy type </param>
/// <param name="relationshipName"> The name of the relationship (FullName or Name) </param>
/// <param name="associationType"> The AssociationType for that property </param>
/// <returns> True if an AssociationType is found in proxy metadata, false otherwise </returns>
internal static bool TryGetAssociationTypeFromProxyInfo(
IEntityWrapper wrappedEntity, string relationshipName, out AssociationType associationType)
{
DebugCheck.NotNull(wrappedEntity);
DebugCheck.NotEmpty(relationshipName);
EntityProxyTypeInfo proxyInfo;
associationType = null;
return (TryGetProxyType(wrappedEntity.Entity.GetType(), out proxyInfo) && proxyInfo != null &&
proxyInfo.TryGetNavigationPropertyAssociationType(relationshipName, out associationType));
}
internal static bool TryGetProxyWrapper(object instance, out IEntityWrapper wrapper)
{
DebugCheck.NotNull(instance);
wrapper = null;
EntityProxyTypeInfo proxyTypeInfo;
if (IsProxyType(instance.GetType())
&&
TryGetProxyType(instance.GetType(), out proxyTypeInfo))
{
wrapper = proxyTypeInfo.GetEntityWrapper(instance);
}
return wrapper != null;
}
/// <summary>
/// Set the proxy object's private entity wrapper field value to the specified entity wrapper object.
/// The proxy object (representing the wrapped entity) is retrieved from the wrapper itself.
/// </summary>
/// <param name="wrapper"> Wrapper object to be referenced by the proxy. </param>
/// <returns> The supplied entity wrapper. This is done so that this method can be more easily composed within lambda expressions (such as in the materializer). </returns>
internal IEntityWrapper SetEntityWrapper(IEntityWrapper wrapper)
{
DebugCheck.NotNull(wrapper);
DebugCheck.NotNull(wrapper.Entity);
return Proxy_SetEntityWrapper(wrapper.Entity, wrapper) as IEntityWrapper;
}
internal EntityReference(IEntityWrapper wrappedOwner, RelationshipNavigation navigation, IRelationshipFixer relationshipFixer)
: base(wrappedOwner, navigation, relationshipFixer)
{
}
/// <summary>
/// A mechanism to lookup AssociationType metadata for proxies for a given entity and association information
/// </summary>
/// <param name="wrappedEntity">The entity instance used to lookup the proxy type</param>
/// <param name="relationshipName">The name of the relationship (FullName or Name)</param>
/// <param name="targetRoleName">Target role of the relationship</param>
/// <param name="associationType">The AssociationType for that property</param>
/// <returns>True if an AssociationType is found in proxy metadata, false otherwise</returns>
internal static bool TryGetAssociationTypeFromProxyInfo(IEntityWrapper wrappedEntity, string relationshipName, string targetRoleName, out AssociationType associationType)
{
EntityProxyTypeInfo proxyInfo = null;
associationType = null;
return (EntityProxyFactory.TryGetProxyType(wrappedEntity.Entity.GetType(), out proxyInfo) && proxyInfo != null &&
proxyInfo.TryGetNavigationPropertyAssociationType(relationshipName, targetRoleName, out associationType));
}
