LogRecord Class

Reference

Definition

Namespace:: System.EnterpriseServices.CompensatingResourceManager

Assembly:: System.EnterpriseServices.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Represents an unstructured log record delivered as a COM+ CrmLogRecordRead structure. This class cannot be inherited.

public ref class LogRecord sealed

public sealed class LogRecord

type LogRecord = class

Public NotInheritable Class LogRecord

Inheritance: Object
LogRecord

Examples

The following code example demonstrates the use of this class.

public:
    virtual bool AbortRecord(LogRecord^ log) override
    {

        // Check the validity of the record.
        if (log == nullptr)
        {
            return true;
        }
        array<Object^>^ record = dynamic_cast<array<Object^>^>(log->Record);
        if (record == nullptr)
        {
            return true;
        }
        if (record->Length != 2)
        {
            return true;
        }

        // Extract old account data from the record.
        String^ filename = (String^) record[0];
        int balance = (int) record[1];

        // Restore the old state of the account.
        WriteAccountBalance(filename, balance);

        return false;
    }

public override bool AbortRecord (LogRecord log)
{

    // Check the validity of the record.
    if (log == null) return(true);
    Object[] record = log.Record as Object[];
    if (record == null) return(true);
    if (record.Length != 2) return(true);

    // Extract old account data from the record.
    string filename = (string) record[0];
    int balance = (int) record[1];

    // Restore the old state of the account.
    AccountManager.WriteAccountBalance(filename, balance);

    return(false);
}

Public Overrides Function AbortRecord(ByVal log As LogRecord) As Boolean 
    
    ' Check the validity of the record.
    If log Is Nothing Then
        Return True
    End If
    Dim record As [Object]() = log.Record
    
    If record Is Nothing Then
        Return True
    End If
    If record.Length <> 2 Then
        Return True
    End If 
    ' Extract old account data from the record.
    Dim filename As String = CStr(record(0))
    Dim balance As Integer = Fix(record(1))
    
    ' Restore the old state of the account.
    AccountManager.WriteAccountBalance(filename, balance)
    
    Return False

End Function 'AbortRecord

Remarks

Unstructured log records are delivered as a COM+ CrmLogRecordRead structure. In addition to the user data (a single BLOB), this contains additional fields that are useful for debugging or fault finding. The Flags field is a bit field that provides further information about whether this record was forgotten at some point, and when it was written. The Sequence field provides the sequence number of the log record. In most cases, sequence numbers are sequential but are not necessarily contiguous due to internal log records that are not delivered to the Compensating Resource Manager (CRM) Compensator.

Properties

Flags	Gets a value that indicates when the log record was written.
Record	Gets the log record user data.
Sequence	The sequence number of the log record.

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

Applies to

Dela via