/// <summary>
/// Reads all entities which belongs to the given scan specification from the database.
/// </summary>
/// <param name="entityContext">
/// The entity context.
/// </param>
/// <param name="entityReference">
/// The entity reference.
/// </param>
/// <param name="scanSpec">
/// The scan spec.
/// </param>
/// <param name="entitySink">
/// The entity sink, receives the entities fetched.
/// </param>
/// <param name="behaviors">
/// The behaviors.
/// </param>
internal static void Read(EntityContext entityContext, EntityReference entityReference, ScanSpec scanSpec,
Action <object> entitySink, Behaviors behaviors)
{
var entityScanResult = new EntityScanResult(entityReference, entitySink);
var entityScanner = new EntityScanner(entityContext);
entityScanner.Add(entityScanResult, scanSpec);
new EntityReader(entityScanner, behaviors).Read();
}
/// <summary>
/// Reads an entity which belongs to the given database key from the database.
/// </summary>
/// <param name="entityContext">
/// The entity context.
/// </param>
/// <param name="entityReference">
/// The entity reference.
/// </param>
/// <param name="key">
/// The database key.
/// </param>
/// <param name="behaviors">
/// The behaviors.
/// </param>
/// <returns>
/// The entity.
/// </returns>
internal static object Read(EntityContext entityContext, EntityReference entityReference, object key,
Behaviors behaviors)
{
var entityScanTarget = new EntityScanTarget(entityReference, key);
var entityScanner = new EntityScanner(entityContext);
entityScanner.Add(entityScanTarget);
new EntityReader(entityScanner, behaviors).Read();
return(entityScanTarget.Value);
}
/// <summary>
/// Reads all entities which belongs to the given scan specification from the database.
/// </summary>
/// <param name="entityContext">
/// The entity context.
/// </param>
/// <param name="entityReference">
/// The entity reference.
/// </param>
/// <param name="scanSpec">
/// The scan spec.
/// </param>
/// <param name="behaviors">
/// The behaviors.
/// </param>
/// <returns>
/// The entities.
/// </returns>
internal static IEnumerable Read(EntityContext entityContext, EntityReference entityReference,
ScanSpec scanSpec, Behaviors behaviors)
{
var entityScanResult = new EntityScanResult(entityReference);
var entityScanner = new EntityScanner(entityContext);
entityScanner.Add(entityScanResult, scanSpec);
new EntityReader(entityScanner, behaviors).Read();
return(entityScanResult.Values);
}
/// <summary>
/// Reads all entities which belongs to the given database keys from the database.
/// </summary>
/// <param name="entityContext">
/// The entity context.
/// </param>
/// <param name="entityReference">
/// The entity reference.
/// </param>
/// <param name="keys">
/// The entity keys.
/// </param>
/// <param name="entitySink">
/// The entity sink, receives the entities fetched.
/// </param>
/// <param name="behaviors">
/// The behaviors.
/// </param>
internal static void Read(EntityContext entityContext, EntityReference entityReference, IEnumerable keys,
Action <object> entitySink, Behaviors behaviors)
{
var entityScanner = new EntityScanner(entityContext);
var entityScanTargets = new ChunkedCollection <EntityScanTarget>();
foreach (var key in keys)
{
if (key != null)
{
var entityScanTarget = new EntityScanTarget(entityReference,
entityReference.GetKeyFromObject(key, false), entitySink);
entityScanTargets.Add(entityScanTarget);
entityScanner.Add(entityScanTarget);
}
}
new EntityReader(entityScanner, behaviors).Read();
}