/// <inheritdoc/>
protected override void ExecuteSelf(OperationExecutionContext context)
{
var session = context.Session;
var item = session.Query.Single(context.TryRemapKey(ItemKey));
GetEntitySet(context).Remove(item);
}
/// <inheritdoc/>
protected override void PrepareSelf(OperationExecutionContext context)
{
foreach (var key in Keys)
{
context.RegisterKey(context.TryRemapKey(key), false);
}
}
/// <inheritdoc/>
protected override void PrepareSelf(OperationExecutionContext context)
{
if (prepareAction != null)
{
prepareAction.Invoke(context, arguments);
}
}
/// <summary>
/// Gets the entity set involved into this operation.
/// </summary>
/// <param name="context">The operation context.</param>
/// <returns>Entity set involved into this operation.</returns>
public EntitySetBase GetEntitySet(OperationExecutionContext context)
{
var session = context.Session;
var key = context.TryRemapKey(Key);
var target = session.Query.Single(key);
return((EntitySetBase)target.GetFieldValue(Field));
}
private void MapCompositeKey(OperationExecutionContext context)
{
// TODO: AY: Review this later
var domain = context.Session.Domain;
var nodeId = context.Session.StorageNodeId;
var keyInfo = Key.TypeReference.Type.Key;
var hierarchy = keyInfo.Hierarchy;
if (hierarchy.Key.Fields.Count == 1 && !hierarchy.Key.Fields[0].IsEntity)
{
return;
}
var columnIndex = 0;
var sourceTuple = Key.Value;
var resultTuple = Tuple.Create(sourceTuple.Descriptor);
var hasTemporaryComponentBeenFound = false;
foreach (var keyField in hierarchy.Key.Fields)
{
if (keyField.Parent != null)
{
continue;
}
if (keyField.IsPrimitive)
{
resultTuple.SetValue(columnIndex, sourceTuple.GetValue(columnIndex));
columnIndex++;
}
else
{
var association = keyField.Associations.Last();
var componentKeyValue = Tuple.Create(association.TargetType.Key.TupleDescriptor);
sourceTuple.CopyTo(componentKeyValue, columnIndex, keyField.MappingInfo.Length);
var componentKey = Key.Create(domain, nodeId, association.TargetType.UnderlyingType,
TypeReferenceAccuracy.BaseType, componentKeyValue);
var componentKeyLength = componentKey.Value.Count;
Key mappedKey;
if (context.KeyMapping.TryGetValue(componentKey, out mappedKey))
{
mappedKey.Value.CopyTo(resultTuple, 0, columnIndex, componentKeyLength);
hasTemporaryComponentBeenFound = true;
}
else
{
componentKeyValue.CopyTo(resultTuple, 0, columnIndex, componentKeyLength);
}
columnIndex += componentKeyLength;
}
}
if (hasTemporaryComponentBeenFound)
{
var result = Key.Create(domain, nodeId, Key.TypeReference.Type.UnderlyingType,
TypeReferenceAccuracy.BaseType, resultTuple);
context.AddKeyMapping(Key, result);
}
}
private void MapNewKey(OperationExecutionContext context)
{
var domain = context.Session.Domain;
if (Key.IsTemporary(domain))
{
var mappedKey = Key.Generate(context.Session, Key.TypeInfo);
context.AddKeyMapping(Key, mappedKey);
}
}
/// <inheritdoc/>
protected override void ExecuteSelf(OperationExecutionContext context)
{
var session = context.Session;
var domain = session.Domain;
var key = context.TryRemapKey(Key);
var type = domain.Model.Types[TypeName];
key = Key.Create(domain, session.StorageNodeId, type, TypeReferenceAccuracy.ExactType, key.Value);
session.CreateOrInitializeExistingEntity(type.UnderlyingType, key);
}
/// <inheritdoc/>
protected override void ExecuteSelf(OperationExecutionContext context)
{
var session = context.Session;
var key = context.TryRemapKey(Key);
var valueKey = context.TryRemapKey(ValueKey);
var entity = session.Query.Single(key);
var value = ValueKey != null?session.Query.Single(valueKey) : Value;
entity.SetFieldValue(Field, value);
}
/// <inheritdoc/>
protected override void ExecuteSelf(OperationExecutionContext context)
{
var session = context.Session;
var entities =
from key in Keys
let remappedKey = context.TryRemapKey(key)
let entity = session.Query.Single(remappedKey)
select entity;
session.Remove(entities);
}
/// <inheritdoc/>
/// <exception cref="VersionConflictException">Version check failed.</exception>
protected override void ExecuteSelf(OperationExecutionContext context)
{
var session = context.Session;
var entity = session.Query.Single(Key);
if (entity.VersionInfo != Version)
{
if (OrmLog.IsLogged(LogLevel.Info))
{
OrmLog.Info(Strings.LogSessionXVersionValidationFailedKeyYVersionZExpected3,
session, Key, entity.VersionInfo, Version);
}
throw new VersionConflictException(
string.Format(Strings.ExVersionOfEntityWithKeyXDiffersFromTheExpectedOne, Key));
}
}
/// <inheritdoc/>
protected override void PrepareSelf(OperationExecutionContext context)
{
if (context.KeyMapping.ContainsKey(Key))
{
return;
}
var keyInfo = Key.TypeReference.Type.Key;
if (!keyInfo.ContainsForeignKeys)
{
MapNewKey(context);
}
else
{
MapCompositeKey(context);
}
}
/// <inheritdoc/>
protected override void PrepareSelf(OperationExecutionContext context)
{
// There should be no base method call here!
context.RegisterKey(context.TryRemapKey(Key), true);
}
/// <inheritdoc/>
protected override void ExecuteSelf(OperationExecutionContext context)
{
// Does nothing.
}
/// <inheritdoc/>
protected override void ExecuteSelf(OperationExecutionContext context)
{
}
/// <inheritdoc/>
protected override void PrepareSelf(OperationExecutionContext context)
{
base.PrepareSelf(context);
// Next line works properly when ValueKey==null
context.RegisterKey(context.TryRemapKey(ValueKey), false);
}
/// <inheritdoc/>
protected override void ExecuteSelf(OperationExecutionContext context)
{
GetEntitySet(context).Clear();
}
/// <inheritdoc/>
protected override void ExecuteSelf(OperationExecutionContext context)
{
executeAction.Invoke(context, arguments);
}
/// <inheritdoc/>
protected override void PrepareSelf(OperationExecutionContext context)
{
base.PrepareSelf(context);
context.RegisterKey(context.TryRemapKey(ItemKey), false);
}
/// <inheritdoc/>
protected override void PrepareSelf(OperationExecutionContext context)
{
context.RegisterKey(Key, false);
}