Sha256: 8b46057c275f2f674c260f499603cebbd2be292f7d2e7565d60d3e94a2881cf4
Contents?: true
Size: 1.53 KB
Versions: 12
Compression:
Stored size: 1.53 KB
Contents
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
module Arrow
module ColumnContainable
def columns
@columns ||= schema.n_fields.times.collect do |i|
Column.new(self, i)
end
end
def each_column(&block)
columns.each(&block)
end
def find_column(name_or_index)
case name_or_index
when String, Symbol
name = name_or_index.to_s
index = schema.get_field_index(name)
return nil if index == -1
Column.new(self, index)
when Integer
index = name_or_index
index += n_columns if index < 0
return nil if index < 0 or index >= n_columns
Column.new(self, index)
else
message = "column name or index must be String, Symbol or Integer"
raise ArgumentError, message
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems