OracleQueueTableOptions Class

In This Topic

Queue table properties, that are used for its creation.

Syntax

Visual Basic
C#

'Declaration
 
Public NotInheritable Class OracleQueueTableOptions

public sealed class OracleQueueTableOptions

Example

The following example demonstrates usage of OracleQueue, OracleQueueAdmin, OracleQueueTable, OracleQueueTableOptions, and OracleQueueMessage classes. For detailed description of advanced queuing and more samples, refer to the Advanced Queuing Technology article.

csharp

static void Main(string[] args)
{
        using (OracleConnection oracleConnection = new OracleConnection(
                        "User Id=system;Password=manager;Server=ora;Direct=False;")) {
                oracleConnection.Open();
                OracleCommand oracleCommand = new OracleCommand(
                        "CREATE OR REPLACE TYPE message AS OBJECT (nickname VARCHAR2(15), " +
                        "mestext VARCHAR2(80));", oracleConnection);
                oracleCommand.ExecuteNonQuery();
                OracleQueueTable oracleQueueTable = new OracleQueueTable("QUEUE_TABLE_MESSAGE", oracleConnection);
                oracleQueueTable.Options.PayloadTypeName = "message";
                oracleQueueTable.CreateQueueTable();
                OracleQueueAdmin oracleQueueAdmin = new OracleQueueAdmin("MESSAGE_QUEUE",
                        "QUEUE_TABLE_MESSAGE", oracleConnection);
                oracleQueueAdmin.CreateQueue();
                oracleQueueAdmin.StartQueue();
                OracleQueue oracleEnqueueQueue = new OracleQueue("MESSAGE_QUEUE", oracleConnection);
                OracleObject mes = new OracleObject("message", oracleConnection);
                mes["nickname"] = oracleConnection.UserId;
                mes["mestext"] = "Hello, world!";
                oracleEnqueueQueue.Enqueue(mes);
                OracleQueue oracleDequeueQueue = new OracleQueue("MESSAGE_QUEUE", oracleConnection);
                OracleQueueMessage msg = oracleDequeueQueue.Dequeue();
                if (msg != null && msg.ObjectPayload != null) {
                        Console.WriteLine(msg.ObjectPayload["nickname"]);
                        Console.WriteLine(msg.ObjectPayload["mestext"]);
                }
                oracleQueueAdmin.StopQueue();
                oracleQueueAdmin.DropQueue();
                oracleQueueTable.DropQueueTable();
                oracleConnection.Close();
        }
}

Visual Basic

Sub Main()
        Using oracleConnection As New OracleConnection("User Id=system;Password=manager;Server=ora;Direct=False;")
                oracleConnection.Open()
                Dim oracleCommand As New OracleCommand("CREATE OR REPLACE TYPE message " & _
                        "AS OBJECT (nickname VARCHAR2(15), mestext VARCHAR2(80));", oracleConnection)
                OracleCommand.ExecuteNonQuery()
                Dim oracleQueueTable As New OracleQueueTable("QUEUE_TABLE_MESSAGE", oracleConnection)
                oracleQueueTable.Options.PayloadTypeName = "message"
                oracleQueueTable.CreateQueueTable()
                Dim oracleQueueAdmin As New OracleQueueAdmin("MESSAGE_QUEUE", _
                        "QUEUE_TABLE_MESSAGE", oracleConnection)
                oracleQueueAdmin.CreateQueue()
                oracleQueueAdmin.StartQueue()
                Dim oracleEnqueueQueue As New OracleQueue("MESSAGE_QUEUE", oracleConnection)
                Dim mes As New OracleObject("message", oracleConnection)
                mes.Item("nickname") = oracleConnection.UserId
                mes.Item("mestext") = "Hello, world!"
                oracleEnqueueQueue.Enqueue(mes)
                Dim oracleDequeueQueue As New OracleQueue("MESSAGE_QUEUE", oracleConnection)
                Dim msg As OracleQueueMessage = oracleDequeueQueue.Dequeue()
                If ((Not msg Is Nothing) AndAlso (Not msg.ObjectPayload Is Nothing)) Then
                        Console.WriteLine(msg.ObjectPayload.Item("nickname"))
                        Console.WriteLine(msg.ObjectPayload.Item("mestext"))
                End If
                oracleQueueAdmin.StopQueue()
                oracleQueueAdmin.DropQueue()
                oracleQueueTable.DropQueueTable()
                oracleConnection.Close()
    End Using
End Sub

Inheritance Hierarchy

System.Object
Devart.Data.Oracle.OracleQueueTableOptions

Reference

OracleQueueTableOptions Members
Devart.Data.Oracle Namespace
OracleQueueTable Class

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