Writes a log record to the LogRecordSequence. This method cannot be inherited.
Assembly: System.IO.Log (in System.IO.Log.dll)
Public Function Append ( _ data As ArraySegment(Of Byte), _ nextUndoRecord As SequenceNumber, _ previousRecord As SequenceNumber, _ recordAppendOptions As RecordAppendOptions _ ) As SequenceNumber
Dim instance As LogRecordSequence Dim data As ArraySegment(Of Byte) Dim nextUndoRecord As SequenceNumber Dim previousRecord As SequenceNumber Dim recordAppendOptions As RecordAppendOptions Dim returnValue As SequenceNumber returnValue = instance.Append(data, nextUndoRecord, _ previousRecord, recordAppendOptions)
public SequenceNumber Append( ArraySegment<byte> data, SequenceNumber nextUndoRecord, SequenceNumber previousRecord, RecordAppendOptions recordAppendOptions )
public: virtual SequenceNumber Append( ArraySegment<unsigned char> data, SequenceNumber nextUndoRecord, SequenceNumber previousRecord, RecordAppendOptions recordAppendOptions ) sealed
public final function Append( data : ArraySegment<byte>, nextUndoRecord : SequenceNumber, previousRecord : SequenceNumber, recordAppendOptions : RecordAppendOptions ) : SequenceNumber
Parameters
- data
- Type: System.ArraySegment<Byte>
A list of byte array segments that will be concatenated and appended as the record.
- nextUndoRecord
- Type: System.IO.Log.SequenceNumber
The sequence number of the next record in the user-specified order.
- previousRecord
- Type: System.IO.Log.SequenceNumber
The sequence number of the next record in Previous order.
- recordAppendOptions
- Type: System.IO.Log.RecordAppendOptions
A valid value of RecordAppendOptions that specifies how the data should be written.
Implements
IRecordSequence.Append(ArraySegment<Byte>, SequenceNumber, SequenceNumber, RecordAppendOptions)| Exception | Condition |
|---|---|
| ArgumentException |
userRecord or previousRecord is not valid for this sequence. -or- data cannot be appended because it is larger than the maximum record size. -or- reservations was not created by this record sequence. |
| ArgumentNullException |
One or more of the arguments are null. |
| ArgumentOutOfRangeException |
userRecord or previousRecord is not between the base and last sequence numbers of this sequence. |
| IOException |
The request could not be performed because of an unexpected I/O exception. -or- The request could not be performed because of an I/O device error. |
| NotSupportedException |
The operation cannot be performed because the record sequence was opened with read-only access. |
| ObjectDisposedException |
The method was called after the sequence has been disposed of. |
| OutOfMemoryException |
There is not enough memory to continue the execution of the program. |
| SequenceFullException |
The record sequence is full. |
| UnauthorizedAccessException |
Access for the specified log sequence is denied by the operating system. |
Data contained in the data parameter will be concatenated into a single byte array for appending as the record. However, no provision is made for splitting data back into array segments when the record is read.
Normally, this method completes before the record has been written. To ensure that a record has been written, either specify the ForceFlush flag using the recordAppendOptions parameter, or call the Flush method.
The following example demonstrates how to use this method to append a log record to the sequence.
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.