/// <summary>
/// Deletes data from external store with specified key. When key is omitted instance's DataStoreKey is used.
/// After this call model state is DataState.Uninitialized
/// </summary>
public void Delete(IModelDataStore store, IDataStoreKey key, params object[] extra)
{
CheckDeleteAllowed();
m_StorageOperation = StorageOperation.Deleting;
try
{
DoDelete(store, key ?? this.DataStoreKey, extra);
}
finally
{
m_StorageOperation = StorageOperation.None;
}
m_DataStoreKey = null;
setState(DataState.Uninitialized);
m_LastPostedChange = ChangeType.Deleted;
}
/// <summary>
/// Saves data into external store using specified key. If key is null then provider may elect to build key from fields with KeyField attribute set to true
/// </summary>
public void Save(IModelDataStore store, IDataStoreKey key, params object[] extra)
{
CheckSaveAllowed();
m_StorageOperation = StorageOperation.Saving;
try
{
DoSave(store, key ?? this.DataStoreKey, extra);
m_DataStoreKey = key;
}
finally
{
m_StorageOperation = StorageOperation.None;
}
}
/// <summary>
/// Deletes data from external store under this instance's DataStoreKey.
/// After this call model state is DataState.Uninitialized
/// </summary>
public void Delete(IModelDataStore store)
{
Delete(store, DataStoreKey);
}
/// <summary>
/// Saves data into external store under this instance's DataStoreKey
/// </summary>
public void Save(IModelDataStore store)
{
Save(store, DataStoreKey);
}
/// <summary>
/// Initializes an instance for data loading and loads data if store is not null from external source.
/// This call has to be followed by EndLoad()
/// </summary>
public void BeginLoad(IModelDataStore store, IDataStoreKey key, params object[] extra)
{
CheckLoadAllowed();
setState(DataState.Initializing);
m_StorageOperation = StorageOperation.Loading;
try
{
DoCreate();
if (store!=null)
DoLoad(store, key, extra);
}
finally
{
m_StorageOperation = StorageOperation.None;
}
m_DataStoreKey = key;
}
/// <summary>
/// Initializes an instance for data loading and loads data if store is not null from external source.
/// </summary>
public void Load(IModelDataStore store, IDataStoreKey key, params object[] extra)
{
BeginLoad(store, key, extra);
EndLoad();
}
/// <summary>
/// Override to implement functionality performed upon Delete()
/// </summary>
protected virtual void DoDelete(IModelDataStore store, IDataStoreKey key, params object[] extra)
{
store.Delete(this, key, extra);
}
/// <summary>
/// Override to implement functionality performed upon BeginLoad()
/// </summary>
protected internal virtual void DoLoad(IModelDataStore store, IDataStoreKey key, params object[] extra)
{
store.Load(this, key, extra);
}
