00001 """autogenerated by genmsg_py from OrderingCriterion.msg. Do not edit."""
00002 import roslib.message
00003 import struct
00004
00005
00006 class OrderingCriterion(roslib.message.Message):
00007 _md5sum = "b1164c823cb6d86127357198543929de"
00008 _type = "warehouse/OrderingCriterion"
00009 _has_header = False
00010 _full_text = """# Represents an ordering criterion to use in a query result set
00011
00012 # Name of the (nested) field to order by, e.g., "position.x"
00013 # Can also be "_creation_time"
00014 string field
00015
00016 # If true, we'll use descending rather than ascending order
00017 bool reverse
00018 """
00019 __slots__ = ['field','reverse']
00020 _slot_types = ['string','bool']
00021
00022 def __init__(self, *args, **kwds):
00023 """
00024 Constructor. Any message fields that are implicitly/explicitly
00025 set to None will be assigned a default value. The recommend
00026 use is keyword arguments as this is more robust to future message
00027 changes. You cannot mix in-order arguments and keyword arguments.
00028
00029 The available fields are:
00030 field,reverse
00031
00032 @param args: complete set of field values, in .msg order
00033 @param kwds: use keyword arguments corresponding to message field names
00034 to set specific fields.
00035 """
00036 if args or kwds:
00037 super(OrderingCriterion, self).__init__(*args, **kwds)
00038
00039 if self.field is None:
00040 self.field = ''
00041 if self.reverse is None:
00042 self.reverse = False
00043 else:
00044 self.field = ''
00045 self.reverse = False
00046
00047 def _get_types(self):
00048 """
00049 internal API method
00050 """
00051 return self._slot_types
00052
00053 def serialize(self, buff):
00054 """
00055 serialize message into buffer
00056 @param buff: buffer
00057 @type buff: StringIO
00058 """
00059 try:
00060 _x = self.field
00061 length = len(_x)
00062 buff.write(struct.pack('<I%ss'%length, length, _x))
00063 buff.write(_struct_B.pack(self.reverse))
00064 except struct.error, se: self._check_types(se)
00065 except TypeError, te: self._check_types(te)
00066
00067 def deserialize(self, str):
00068 """
00069 unpack serialized message in str into this message instance
00070 @param str: byte array of serialized message
00071 @type str: str
00072 """
00073 try:
00074 end = 0
00075 start = end
00076 end += 4
00077 (length,) = _struct_I.unpack(str[start:end])
00078 start = end
00079 end += length
00080 self.field = str[start:end]
00081 start = end
00082 end += 1
00083 (self.reverse,) = _struct_B.unpack(str[start:end])
00084 self.reverse = bool(self.reverse)
00085 return self
00086 except struct.error, e:
00087 raise roslib.message.DeserializationError(e)
00088
00089
00090 def serialize_numpy(self, buff, numpy):
00091 """
00092 serialize message with numpy array types into buffer
00093 @param buff: buffer
00094 @type buff: StringIO
00095 @param numpy: numpy python module
00096 @type numpy module
00097 """
00098 try:
00099 _x = self.field
00100 length = len(_x)
00101 buff.write(struct.pack('<I%ss'%length, length, _x))
00102 buff.write(_struct_B.pack(self.reverse))
00103 except struct.error, se: self._check_types(se)
00104 except TypeError, te: self._check_types(te)
00105
00106 def deserialize_numpy(self, str, numpy):
00107 """
00108 unpack serialized message in str into this message instance using numpy for array types
00109 @param str: byte array of serialized message
00110 @type str: str
00111 @param numpy: numpy python module
00112 @type numpy: module
00113 """
00114 try:
00115 end = 0
00116 start = end
00117 end += 4
00118 (length,) = _struct_I.unpack(str[start:end])
00119 start = end
00120 end += length
00121 self.field = str[start:end]
00122 start = end
00123 end += 1
00124 (self.reverse,) = _struct_B.unpack(str[start:end])
00125 self.reverse = bool(self.reverse)
00126 return self
00127 except struct.error, e:
00128 raise roslib.message.DeserializationError(e)
00129
00130 _struct_I = roslib.message.struct_I
00131 _struct_B = struct.Struct("<B")