Removed unimplemented abstract methods

src/nupic/data/file_record_stream.py

@@ -387,18 +387,6 @@ def getNextRecord(self, useCache=True):
     return record
 
 
-  def getRecordsRange(self, bookmark=None, range=None):
-    raise Exception('getRecordsRange() is not supported for the file storage')
-
-
-  def getLastRecords(self, numRecords):
-    raise Exception('getLastRecords() is not supported for the file storage')
-
-
-  def removeOldData(self):
-    raise Exception('removeOldData is not supported in this class.')
-
-
   def appendRecord(self, record, inputBookmark=None):
     """
     Saves the record in the underlying csv file.

src/nupic/data/record_stream.py

@@ -296,38 +296,13 @@ def getAggregationMonthsAndSeconds(self):
     return None
 
 
-  @abstractmethod
-  def getRecordsRange(self, bookmark=None, range=None):
-    """Returns a range of records, starting from the bookmark. If 'bookmark'
-    is None, then records read from the first available. If 'range' is
-    None, all available records will be returned (caution: this could be
-    a lot of records and require a lot of memory).
-    """
-
-
   @abstractmethod
   def getNextRecordIdx(self):
     """Returns the index of the record that will be read next from
     getNextRecord()
     """
 
 
-  @abstractmethod
-  def getLastRecords(self, numRecords):
-    """Returns a tuple (successCode, recordsArray), where
-    successCode - if the stream had enough records to return, True/False
-    recordsArray - an array of last numRecords records available when
-                   the call was made. Records appended while in the
-                   getLastRecords will be not returned until the next
-                   call to either getNextRecord() or getLastRecords()
-    """
-
-
-  @abstractmethod
-  def removeOldData(self):
-    """Deletes all rows from the table if any data was found."""
-
-
   @abstractmethod
   def appendRecord(self, record, inputRef=None):
     """Saves the record in the underlying storage."""

src/nupic/data/stream_reader.py

@@ -384,20 +384,6 @@ def getDataRowCount(self):
         raise RuntimeError('No end of datastream found.')
 
 
-  def getLastRecords(self, numRecords):
-    """Saves the record in the underlying storage."""
-    raise RuntimeError("Not implemented in StreamReader")
-
-
-  def getRecordsRange(self, bookmark=None, range=None):
-    """ Returns a range of records, starting from the bookmark. If 'bookmark'
-    is None, then records read from the first available. If 'range' is
-    None, all available records will be returned (caution: this could be
-    a lot of records and require a lot of memory).
-    """
-    raise RuntimeError("Not implemented in StreamReader")
-
-
   def getNextRecordIdx(self):
     """Returns the index of the record that will be read next from
     getNextRecord()
@@ -443,10 +429,6 @@ def appendRecords(self, records, inputRef=None, progressCB=None):
     raise RuntimeError("Not implemented in StreamReader")
 
 
-  def removeOldData(self):
-    raise RuntimeError("Not implemented in StreamReader")
-
-
   def seekFromEnd(self, numRecords):
     """Seeks to numRecords from the end and returns a bookmark to the new
     position.