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"""
Defines the BaseDataRange class.
"""
# Local relative imports
from abstract_data_range import AbstractDataRange
class BaseDataRange(AbstractDataRange):
""" Ranges represent sub-regions of data space.
They support "autoscaling" by querying their associated data sources.
"""
#------------------------------------------------------------------------
# Public methods
#------------------------------------------------------------------------
def __init__(self, *datasources, **kwtraits):
super(AbstractDataRange, self).__init__(**kwtraits)
if len(datasources) > 0:
self.sources.extend(datasources)
def add(self, *datasources):
""" Convenience method to add a data source. """
for datasource in datasources:
if datasource not in self.sources:
self.sources.append(datasource)
def remove(self, *datasources):
""" Convenience method to remove a data source. """
for datasource in datasources:
if datasource in self.sources:
self.sources.remove(datasource)
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