/// <summary>
/// Sets the duplicate comparison function
/// </summary>
/// <remarks>
/// This method wraps the native ham_set_duplicate_compare_func function.<br />
/// <br />
/// The <see cref="CompareFunc" /> delegate compares two records.
/// It returns -1 if the first record is smaller, +1 if the second record
/// is smaller or 0 if both records are equal.<br />
/// <br />
/// If <paramref name="foo"/> is null, hamsterdb will use the default
/// compare function (which is based on memcmp(3)).<br />
/// <br />
/// Note that duplicate comparison has to be enabled with
/// <see cref="HamConst.HAM_SORT_DUPLICATES"/>.
/// </remarks>
/// <param name="foo">The duplicate compare delegate, or null</param>
public void SetDuplicateCompareFunc(DuplicateCompareFunc foo)
{
int st;
lock (this)
{
st = NativeMethods.SetDuplicateCompareFunc(handle,
pinnedDupeCompareFunc);
}
if (st != 0)
{
throw new DatabaseException(st);
}
DuplicateCompareFoo = foo;
}
/// <summary>
/// Sets the duplicate comparison function
/// </summary>
/// <remarks>
/// This method wraps the native ham_set_duplicate_compare_func function.<br />
/// <br />
/// The <see cref="CompareFunc" /> delegate compares two records.
/// It returns -1 if the first record is smaller, +1 if the second record
/// is smaller or 0 if both records are equal.<br />
/// <br />
/// If <paramref name="foo"/> is null, hamsterdb will use the default
/// compare function (which is based on memcmp(3)).<br />
/// <br />
/// Note that duplicate comparison has to be enabled with
/// <see cref="HamConst.HAM_SORT_DUPLICATES"/>.
/// </remarks>
/// <param name="foo">The duplicate compare delegate, or null</param>
public void SetDuplicateCompareFunc(DuplicateCompareFunc foo)
{
int st;
lock (this)
{
st = NativeMethods.SetDuplicateCompareFunc(handle,
pinnedDupeCompareFunc);
}
if (st != 0)
throw new DatabaseException(st);
DuplicateCompareFoo = foo;
}
