| ConnectionUpdatePersistentObjectAsync Method |
Updates a persistent object from the data store as an asynchronous operation.
Namespace: ObujekutoruAssembly: obujekutoru (in obujekutoru.dll) Version: 1.1.0.25794
Syntax public Task UpdatePersistentObjectAsync(
PersistentObject persistentObject
)
Public Function UpdatePersistentObjectAsync (
persistentObject As PersistentObject
) As Task
public:
Task^ UpdatePersistentObjectAsync(
PersistentObject^ persistentObject
)
member UpdatePersistentObjectAsync :
persistentObject : PersistentObject -> Task
Parameters
- persistentObject
- Type: ObujekutoruPersistentObject
The persistent object to be updated.
Return Value
Type:
TaskThe task object representing the asynchronous operation.
Exceptions Examples using System;
using System.Collections;
using System.Collections.Generic;
using Obujekutoru;
namespace ObujekutoruExamples.ConnectionUpdateExample
{
...
internal class AsyncUpdateClass
{
public async void UpdateAsyncMethod()
{
String dataFolderPath = @"C:\Temp\ObujekutoruData";
EncryptionType encryptionType = EncryptionType.DESEncryption;
String encryptionKey = "A proavo habui, quod publicos litterarum ludos non frequentavi, et domi bonis praeceptoribus usus...";
List<PersistentObject> persistentObjects;
using (Connection connection = new Connection(dataFolderPath, encryptionType, encryptionKey, true))
{
PersistentObjectE persistentObjectE1 = new PersistentObjectE("persistent object E1", 1);
PersistentObjectE persistentObjectE2 = new PersistentObjectE("persistent object E2", 2);
PersistentObjectE persistentObjectE3 = new PersistentObjectE("persistent object E3", 3);
await connection.InsertPersistentObjectAsync(persistentObjectE1);
await connection.InsertPersistentObjectAsync(persistentObjectE2);
await connection.InsertPersistentObjectAsync(persistentObjectE3);
persistentObjects = await connection.SelectPersistentObjectAsync(
typeof(PersistentObjectE),
PersistentObjectFieldFilterCollection.Empty().And(
"persistentObjectValue",
PersistentObjectFieldFilterOperator.Equal,
2),
PersistentObjectFieldSorterCollection.Empty(),
1, Int32.MaxValue);
PersistentObjectE persistentObjectToUpdate = (PersistentObjectE)persistentObjects[0];
persistentObjectToUpdate.PersistentObjectName = "persistent object E2 updated!";
await connection.UpdatePersistentObjectAsync(persistentObjectToUpdate);
persistentObjects = await connection.SelectPersistentObjectAsync(
typeof(PersistentObjectE),
PersistentObjectFieldFilterCollection.Empty().And(
"persistentObjectValue",
PersistentObjectFieldFilterOperator.Equal,
2),
PersistentObjectFieldSorterCollection.Empty(),
1, Int32.MaxValue);
Console.WriteLine("persistentObjects[0] = {0}", (persistentObjects[0] as PersistentObjectE).PersistentObjectName);
}
}
}
...
}
See Also