private void TestApplyItemsToCollection(
TestCustomer customer,
IEnumerable orders,
MergeOption option,
TestEntityTracker entityTracker,
bool isContinuation)
{
var customerDescriptor = new EntityDescriptor(this.clientEdmModel)
{
Entity = customer
};
var materializerEntry = MaterializerEntry.CreateEntryForLoadProperty(customerDescriptor, ODataFormat.Json, true);
materializerEntry.ActualType = this.clientEdmModel.GetClientTypeAnnotation(clientEdmModel.GetOrCreateEdmType(typeof(TestCustomer)));
var adapter = new EntityTrackingAdapter(
entityTracker,
option,
clientEdmModel,
new DataServiceContext());
EntryValueMaterializationPolicy evmp = new EntryValueMaterializationPolicy(
materializerContext,
adapter,
null,
new Dictionary <IEnumerable, DataServiceQueryContinuation>());
evmp.ApplyItemsToCollection(
materializerEntry,
ordersProperty,
orders,
null,
null,
isContinuation);
if (entityTracker.GetEntityDescriptorFunc != null)
{
adapter.MaterializationLog.ApplyToContext();
}
}
/// <summary>
/// Implementation of Read/>.
/// </summary>
/// <returns>
/// Return value of Read/>
/// </returns>
protected override bool ReadImplementation()
{
// Eagerly materialize the entire collection of objects into the items cache in LoadProperty scenario.
if (this.iteration == 0)
{
while (base.ReadImplementation())
{
this.items.Add(this.currentValue);
}
ClientPropertyAnnotation property = this.responseInfo.Property;
EntityDescriptor entityDescriptor = this.responseInfo.EntityDescriptor;
object entity = entityDescriptor.Entity;
MaterializerEntry entry = MaterializerEntry.CreateEntryForLoadProperty(
entityDescriptor,
this.Format,
this.responseInfo.MergeOption != MergeOption.NoTracking);
entry.ActualType = this.responseInfo.Model.GetClientTypeAnnotation(this.responseInfo.Model.GetOrCreateEdmType(entity.GetType()));
if (property.IsEntityCollection)
{
this.EntryValueMaterializationPolicy.ApplyItemsToCollection(
entry,
property,
this.items,
this.CurrentFeed != null ? this.CurrentFeed.NextPageLink : null,
this.MaterializeEntryPlan,
this.responseInfo.IsContinuation);
}
else
{
Debug.Assert(this.items.Count <= 1, "Expecting 0 or 1 element.");
object target = this.items.Count > 0 ? this.items[0] : null;
Debug.Assert(property.EdmProperty.Type.TypeKind() == EdmTypeKind.Entity, "Must be entity typed property if not an entity collection property.");
this.EntityTrackingAdapter.MaterializationLog.SetLink(entry, property.PropertyName, target);
// Singleton entity property
property.SetValue(entity, target, property.PropertyName, false);
}
// Apply the materialization log.
this.ApplyLogToContext();
// Clear the log after applying it.
this.ClearLog();
}
// Read object from the already loaded items cache.
if (this.items.Count > this.iteration)
{
this.currentValue = this.items[this.iteration];
this.iteration++;
return(true);
}
else
{
this.currentValue = null;
return(false);
}
}
