IsExistingObject プロパティ
サーバーにオブジェクトが存在するかどうかを取得します。
名前空間: Microsoft.SqlServer.Replication
アセンブリ: Microsoft.SqlServer.Rmo (Microsoft.SqlServer.Rmo.dll)
構文
'宣言
Public ReadOnly Property IsExistingObject As Boolean
Get
'使用
Dim instance As ReplicationObject
Dim value As Boolean
value = instance.IsExistingObject
public bool IsExistingObject { get; }
public:
property bool IsExistingObject {
bool get ();
}
member IsExistingObject : bool
function get IsExistingObject () : boolean
プロパティ値
型: System. . :: . .Boolean
Boolean 値です。true の場合、オブジェクトは既存のオブジェクトを表します。false の場合、オブジェクトはまだ存在しないオブジェクトを表します。
説明
オブジェクトに十分な情報がない場合、IsExistingObject は false を返します。
このプロパティは、SQL Server 7.0、SQL Server 2000、および SQL Server 2005 で使用できます。
この名前空間、クラス、またはメンバは、.NET Framework 2.0 でのみサポートされています。
使用例
// Set the Publisher, publication database, and publication names.
string publicationName = "AdvWorksProductTran";
string publicationDbName = "AdventureWorks";
string publisherName = publisherInstance;
ReplicationDatabase publicationDb;
TransPublication publication;
// Create a connection to the Publisher using Windows Authentication.
ServerConnection conn;
conn = new ServerConnection(publisherName);
try
{
// Connect to the Publisher.
conn.Connect();
// Enable the AdventureWorks database for transactional publishing.
publicationDb = new ReplicationDatabase(publicationDbName, conn);
// If the database exists and is not already enabled,
// enable it for transactional publishing.
if (publicationDb.LoadProperties())
{
if (!publicationDb.EnabledTransPublishing)
{
publicationDb.EnabledTransPublishing = true;
}
// If the Log Reader Agent does not exist, create it.
if (!publicationDb.LogReaderAgentExists)
{
// Specify the Windows account under which the agent job runs.
// This account will be used for the local connection to the
// Distributor and all agent connections that use Windows Authentication.
publicationDb.LogReaderAgentProcessSecurity.Login = winLogin;
publicationDb.LogReaderAgentProcessSecurity.Password = winPassword;
// Explicitly set authentication mode for the Publisher connection
// to the default value of Windows Authentication.
publicationDb.LogReaderAgentPublisherSecurity.WindowsAuthentication = true;
// Create the Log Reader Agent job.
publicationDb.CreateLogReaderAgent();
}
}
else
{
throw new ApplicationException(String.Format(
"The {0} database does not exist at {1}.",
publicationDb, publisherName));
}
// Set the required properties for the transactional publication.
publication = new TransPublication();
publication.ConnectionContext = conn;
publication.Name = publicationName;
publication.DatabaseName = publicationDbName;
// Specify a transactional publication (the default).
publication.Type = PublicationType.Transactional;
// Activate the publication so that we can add subscriptions.
publication.Status = State.Active;
// Enable push and pull subscriptions and independent Distribition Agents.
publication.Attributes |= PublicationAttributes.AllowPull;
publication.Attributes |= PublicationAttributes.AllowPush;
publication.Attributes |= PublicationAttributes.IndependentAgent;
// Specify the Windows account under which the Snapshot Agent job runs.
// This account will be used for the local connection to the
// Distributor and all agent connections that use Windows Authentication.
publication.SnapshotGenerationAgentProcessSecurity.Login = winLogin;
publication.SnapshotGenerationAgentProcessSecurity.Password = winPassword;
// Explicitly set the security mode for the Publisher connection
// Windows Authentication (the default).
publication.SnapshotGenerationAgentPublisherSecurity.WindowsAuthentication = true;
if (!publication.IsExistingObject)
{
// Create the transactional publication.
publication.Create();
// Create a Snapshot Agent job for the publication.
publication.CreateSnapshotAgent();
}
else
{
throw new ApplicationException(String.Format(
"The {0} publication already exists.", publicationName));
}
}
catch (Exception ex)
{
// Implement custom application error handling here.
throw new ApplicationException(String.Format(
"The publication {0} could not be created.", publicationName), ex);
}
finally
{
conn.Disconnect();
}
' Set the Publisher, publication database, and publication names.
Dim publicationName As String = "AdvWorksProductTran"
Dim publicationDbName As String = "AdventureWorks"
Dim publisherName As String = publisherInstance
Dim publicationDb As ReplicationDatabase
Dim publication As TransPublication
' Create a connection to the Publisher using Windows Authentication.
Dim conn As ServerConnection
conn = New ServerConnection(publisherName)
Try
' Connect to the Publisher.
conn.Connect()
' Enable the AdventureWorks database for transactional publishing.
publicationDb = New ReplicationDatabase(publicationDbName, conn)
' If the database exists and is not already enabled,
' enable it for transactional publishing.
If publicationDb.LoadProperties() Then
If Not publicationDb.EnabledTransPublishing Then
publicationDb.EnabledTransPublishing = True
End If
' If the Log Reader Agent does not exist, create it.
If Not publicationDb.LogReaderAgentExists Then
' Specify the Windows account under which the agent job runs.
' This account will be used for the local connection to the
' Distributor and all agent connections that use Windows Authentication.
publicationDb.LogReaderAgentProcessSecurity.Login = winLogin
publicationDb.LogReaderAgentProcessSecurity.Password = winPassword
' Explicitly set authentication mode for the Publisher connection
' to the default value of Windows Authentication.
publicationDb.LogReaderAgentPublisherSecurity.WindowsAuthentication = True
' Create the Log Reader Agent job.
publicationDb.CreateLogReaderAgent()
End If
Else
Throw New ApplicationException(String.Format( _
"The {0} database does not exist at {1}.", _
publicationDb, publisherName))
End If
' Set the required properties for the transactional publication.
publication = New TransPublication()
publication.ConnectionContext = conn
publication.Name = publicationName
publication.DatabaseName = publicationDbName
' Specify a transactional publication (the default).
publication.Type = PublicationType.Transactional
'Enable push and pull subscriptions and independent Distribition Agents.
publication.Attributes = _
publication.Attributes Or PublicationAttributes.AllowPull
publication.Attributes = _
publication.Attributes Or PublicationAttributes.AllowPush
publication.Attributes = _
publication.Attributes Or PublicationAttributes.IndependentAgent
' Activate the publication so that we can add subscriptions.
publication.Status = State.Active
' Specify the Windows account under which the Snapshot Agent job runs.
' This account will be used for the local connection to the
' Distributor and all agent connections that use Windows Authentication.
publication.SnapshotGenerationAgentProcessSecurity.Login = winLogin
publication.SnapshotGenerationAgentProcessSecurity.Password = winPassword
' Explicitly set the security mode for the Publisher connection
' Windows Authentication (the default).
publication.SnapshotGenerationAgentPublisherSecurity.WindowsAuthentication = True
If Not publication.IsExistingObject Then
' Create the transactional publication.
publication.Create()
' Create a Snapshot Agent job for the publication.
publication.CreateSnapshotAgent()
Else
Throw New ApplicationException(String.Format( _
"The {0} publication already exists.", publicationName))
End If
Catch ex As Exception
' Implement custom application error handling here.
Throw New ApplicationException(String.Format( _
"The publication {0} could not be created.", publicationName), ex)
Finally
conn.Disconnect()
End Try