| ConnectionSelectPersistentObjectCountAsyncPersistentObjectType Method |
Retrieves the count of persistent objects from the data store as an asynchronous operation.
Namespace:
Obujekutoru
Assembly:
obujekutoru (in obujekutoru.dll) Version: 1.2.0.35246
Syntax public Task<int> SelectPersistentObjectCountAsync<PersistentObjectType>(
PersistentObjectFieldFilterCollection persistentObjectFieldFilterCollection
)
Public Function SelectPersistentObjectCountAsync(Of PersistentObjectType) (
persistentObjectFieldFilterCollection As PersistentObjectFieldFilterCollection
) As Task(Of Integer)
public:
generic<typename PersistentObjectType>
Task<int>^ SelectPersistentObjectCountAsync(
PersistentObjectFieldFilterCollection^ persistentObjectFieldFilterCollection
)
member SelectPersistentObjectCountAsync :
persistentObjectFieldFilterCollection : PersistentObjectFieldFilterCollection -> Task<int>
Parameters
- persistentObjectFieldFilterCollection
- Type: ObujekutoruPersistentObjectFieldFilterCollection
The persistent object field filters to use for the search.
Type Parameters
- PersistentObjectType
Return Value
Type:
TaskInt32The task object representing the asynchronous operation.
Exceptions Examples using System;
using System.Collections;
using System.Collections.Generic;
using Obujekutoru;
namespace ObujekutoruExamples.ConnectionSelectCountExample
{
...
internal class AsyncSelectCountClass
{
public async void AsyncSelectCountMethod()
{
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...";
using (Connection connection = new Connection(dataFolderPath, encryptionType, encryptionKey, true))
{
PersistentObjectE persistentObjectE1 = new PersistentObjectE("persistent object E1", 1);
PersistentObjectE persistentObjectE2 = new PersistentObjectE("persistent object E2", 1);
PersistentObjectE persistentObjectE3 = new PersistentObjectE("persistent object E3", 1);
PersistentObjectE persistentObjectE4 = new PersistentObjectE("persistent object E4", 2);
PersistentObjectE persistentObjectE5 = new PersistentObjectE("persistent object E5", 2);
PersistentObjectE persistentObjectE6 = new PersistentObjectE("persistent object E6", 2);
PersistentObjectE persistentObjectE7 = new PersistentObjectE("persistent object E7", 3);
PersistentObjectE persistentObjectE8 = new PersistentObjectE("persistent object E8", 3);
PersistentObjectE persistentObjectE9 = new PersistentObjectE("persistent object E9", 3);
await connection.InsertPersistentObjectAsync(persistentObjectE1);
await connection.InsertPersistentObjectAsync(persistentObjectE2);
await connection.InsertPersistentObjectAsync(persistentObjectE3);
await connection.InsertPersistentObjectAsync(persistentObjectE4);
await connection.InsertPersistentObjectAsync(persistentObjectE5);
await connection.InsertPersistentObjectAsync(persistentObjectE6);
await connection.InsertPersistentObjectAsync(persistentObjectE7);
await connection.InsertPersistentObjectAsync(persistentObjectE8);
await connection.InsertPersistentObjectAsync(persistentObjectE9);
Int32 persistentObjectCount = await connection.SelectPersistentObjectCountAsync<PersistentObjectE>(
PersistentObjectFieldFilterCollection.With(
"persistentObjectValue", PersistentObjectFieldFilterOperator.Equal, 2));
Console.WriteLine("persistentObjectCount = {0}", persistentObjectCount);
}
}
}
...
}
See Also