c-treeDB API API for C

ctdbGetFieldStatus

Retrieves the changed status of a field handle.

DECLARATION

ULONG ctdbGetFieldStatus(CTHANDLE Handle);

DESCRIPTION

Retrieves the changed status of a field handle. Handle must be a c-treeDB API field handle. The status of a field handle is a bit map describing one or more changes that have occurred with the field object.

RETURN

ctdbGetFieldStatus() returns a bitmap of the following:

Value	Symbolic Constant	Explanation
0x00	CTDBFIELD_OLD	Original field as read from table
0x01	CTDBFIELD_NEW	Field added or inserted
0x02	CTDBFIELD_DEL	Original field deleted
0x04	CTDBFIELD_MOVED	Original field moved
0x10	CTDBFIELD_NAME	Field name changed
0x20	CTDBFIELD_TYPE	Field type changed
0x40	CTDBFIELD_LEN	Field length changed
0x80	CTDBFIELD_RESOURCE	Field resource changed

See Appendix A for a complete listing of valid c-tree Plus error values.

EXAMPLE

/* if field is new delete it */

for (i = 0; i < (NINT) ctdbGetTableFieldCount(hTable); i++)

{

CTHANDLE hField = ctdbGetField(hTable, i);

if (ctdbGetFieldStatus(hField) & CTDBFIELD_NEW)

if (ctdbDelField(hTable, 0) != CTDBRET_OK)

printf("ctdbDelField failed\n");

}