Package muntjac :: Package data :: Package validators :: Module double_validator
[hide private]
[frames] | no frames]

Source Code for Module muntjac.data.validators.double_validator

 1  # Copyright (C) 2012 Vaadin Ltd.  
 2  # Copyright (C) 2012 Richard Lincoln 
 3  #  
 4  # Licensed under the Apache License, Version 2.0 (the "License");  
 5  # you may not use this file except in compliance with the License.  
 6  # You may obtain a copy of the License at  
 7  #  
 8  #     http://www.apache.org/licenses/LICENSE-2.0  
 9  #  
10  # Unless required by applicable law or agreed to in writing, software  
11  # distributed under the License is distributed on an "AS IS" BASIS,  
12  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  
13  # See the License for the specific language governing permissions and  
14  # limitations under the License. 
15   
16  """String validator for a double precision floating point number.""" 
17   
18  from muntjac.data.validators.abstract_string_validator import \ 
19      AbstractStringValidator 
20   
21   
22 -class DoubleValidator(AbstractStringValidator):
23 """String validator for a double precision floating point number. See 24 L{AbstractStringValidator} for more information. 25 26 @author: Vaadin Ltd. 27 @author: Richard Lincoln 28 @version: 1.1.2 29 """ 30
31 - def __init__(self, errorMessage):
32 """Creates a validator for checking that a string can be parsed as an 33 double. 34 35 @param errorMessage: 36 the message to display in case the value does not validate. 37 """ 38 super(DoubleValidator, self).__init__(errorMessage)
39 40
41 - def isValidString(self, value):
42 try: 43 float(value) 44 return True 45 except ValueError: 46 return False
47