/// <include file='doc\OracleLob.uex' path='docs/doc[@for="OracleLob.Append"]/*' />
public void Append(OracleLob source)
{
if (null == source)
{
throw ADP.ArgumentNull("source");
}
AssertObjectNotDisposed();
source.AssertObjectNotDisposed();
if (IsNull)
{
throw ADP.LobWriteInvalidOnNull();
}
if (!source.IsNull)
{
AssertConnectionIsOpen();
EnsureBuffering(false);
int rc = TracedNativeMethods.OCILobAppend(
ServiceContextHandle,
ErrorHandle,
Descriptor,
source.Descriptor
);
if (0 != rc)
{
Connection.CheckError(ErrorHandle, rc);
}
}
}
public void Append(OracleLob source)
{
if (source == null)
{
throw System.Data.Common.ADP.ArgumentNull("source");
}
this.AssertObjectNotDisposed();
source.AssertObjectNotDisposed();
if (this.IsNull)
{
throw System.Data.Common.ADP.LobWriteInvalidOnNull();
}
if (!source.IsNull)
{
this.AssertConnectionIsOpen();
int rc = TracedNativeMethods.OCILobAppend(this.ServiceContextHandle, this.ErrorHandle, this.Descriptor, source.Descriptor);
if (rc != 0)
{
this.Connection.CheckError(this.ErrorHandle, rc);
}
}
}
public void Append(OracleLob source)
{
if (source == null)
{
throw System.Data.Common.ADP.ArgumentNull("source");
}
this.AssertObjectNotDisposed();
source.AssertObjectNotDisposed();
if (this.IsNull)
{
throw System.Data.Common.ADP.LobWriteInvalidOnNull();
}
if (!source.IsNull)
{
this.AssertConnectionIsOpen();
int rc = TracedNativeMethods.OCILobAppend(this.ServiceContextHandle, this.ErrorHandle, this.Descriptor, source.Descriptor);
if (rc != 0)
{
this.Connection.CheckError(this.ErrorHandle, rc);
}
}
}
public long CopyTo(long sourceOffset, OracleLob destination, long destinationOffset, long amount)
{
if (destination == null)
{
throw System.Data.Common.ADP.ArgumentNull("destination");
}
this.AssertObjectNotDisposed();
destination.AssertObjectNotDisposed();
this.AssertAmountIsValid(amount, "amount");
this.AssertAmountIsValid(sourceOffset, "sourceOffset");
this.AssertAmountIsValid(destinationOffset, "destinationOffset");
if (destination.IsNull)
{
throw System.Data.Common.ADP.LobWriteInvalidOnNull();
}
if (this.IsNull)
{
return(0L);
}
this.AssertConnectionIsOpen();
this.AssertTransactionExists();
long num = this.AdjustOffsetToOracle(Math.Min(this.Length - sourceOffset, amount));
long num5 = this.AdjustOffsetToOracle(destinationOffset) + 1L;
long num4 = this.AdjustOffsetToOracle(sourceOffset) + 1L;
if (0L >= num)
{
return(0L);
}
int rc = TracedNativeMethods.OCILobCopy(this.ServiceContextHandle, this.ErrorHandle, destination.Descriptor, this.Descriptor, (uint)num, (uint)num5, (uint)num4);
if (rc != 0)
{
this.Connection.CheckError(this.ErrorHandle, rc);
}
return(this.AdjustOracleToOffset(num));
}
public long CopyTo(long sourceOffset, OracleLob destination, long destinationOffset, long amount)
{
if (destination == null)
{
throw System.Data.Common.ADP.ArgumentNull("destination");
}
this.AssertObjectNotDisposed();
destination.AssertObjectNotDisposed();
this.AssertAmountIsValid(amount, "amount");
this.AssertAmountIsValid(sourceOffset, "sourceOffset");
this.AssertAmountIsValid(destinationOffset, "destinationOffset");
if (destination.IsNull)
{
throw System.Data.Common.ADP.LobWriteInvalidOnNull();
}
if (this.IsNull)
{
return 0L;
}
this.AssertConnectionIsOpen();
this.AssertTransactionExists();
long num = this.AdjustOffsetToOracle(Math.Min(this.Length - sourceOffset, amount));
long num5 = this.AdjustOffsetToOracle(destinationOffset) + 1L;
long num4 = this.AdjustOffsetToOracle(sourceOffset) + 1L;
if (0L >= num)
{
return 0L;
}
int rc = TracedNativeMethods.OCILobCopy(this.ServiceContextHandle, this.ErrorHandle, destination.Descriptor, this.Descriptor, (uint) num, (uint) num5, (uint) num4);
if (rc != 0)
{
this.Connection.CheckError(this.ErrorHandle, rc);
}
return this.AdjustOracleToOffset(num);
}
/// <include file='doc\OracleLob.uex' path='docs/doc[@for="OracleLob.CopyTo3"]/*' />
public long CopyTo(
long sourceOffset,
OracleLob destination,
long destinationOffset,
long amount
)
{
// Copies a range of elements from the lob to a compatible lob, starting at the specified index of the target array.
if (null == destination)
{
throw ADP.ArgumentNull("destination");
}
AssertObjectNotDisposed();
destination.AssertObjectNotDisposed();
AssertAmountIsValid(amount, "amount");
AssertAmountIsValid(sourceOffset, "sourceOffset");
AssertAmountIsValid(destinationOffset, "destinationOffset");
if (destination.IsNull)
{
throw ADP.LobWriteInvalidOnNull();
}
if (IsNull)
{
return(0);
}
AssertConnectionIsOpen();
AssertTransactionExists();
int rc;
EnsureBuffering(false);
destination.EnsureBuffering(false);
long dataCount = AdjustOffsetToOracle(Math.Min(Length - sourceOffset, amount));
long dstOffset = AdjustOffsetToOracle(destinationOffset) + 1; // Oracle is 1 based, we are zero based.
long srcOffset = AdjustOffsetToOracle(sourceOffset) + 1; // Oracle is 1 based, we are zero based.
if (0 >= dataCount)
{
return(0);
}
rc = TracedNativeMethods.OCILobCopy(
ServiceContextHandle,
ErrorHandle,
destination.Descriptor,
Descriptor,
(UInt32)dataCount,
(UInt32)dstOffset,
(UInt32)srcOffset
);
if (0 != rc)
{
Connection.CheckError(ErrorHandle, rc);
}
// DEVNOTE: Oracle must not do partial copies, because their API doesn't tell you how many bytes were copied.
long byteCount = AdjustOracleToOffset(dataCount);
return(byteCount);
}