+from PLC.Faults import *
+from PLC.Parameter import Parameter
+from PLC.Table import Row, Table
+
+class BootState(Row):
+ """
+ Representation of a row in the boot_states table. To use,
+ instantiate with a dict of values.
+ """
+
+ table_name = 'boot_states'
+ primary_key = 'boot_state'
+ join_tables = ['nodes']
+ fields = {
+ 'boot_state': Parameter(str, "Boot state", max = 20),
+ }
+
+ def validate_boot_state(self, name):
+ # Make sure name is not blank
+ if not len(name):
+ raise PLCInvalidArgument("Boot state must be specified")
+
+ # Make sure boot state does not already exist
+ conflicts = BootStates(self.api, [name])
+ if conflicts:
+ raise PLCInvalidArgument("Boot state name already in use")
+
+ return name
+
+class BootStates(Table):