ruby/red-gandiva/lib/gandiva/expression-builder.rb

# 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
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# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
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#
#   http://www.apache.org/licenses/LICENSE-2.0
#
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# under the License.

module Gandiva
  class ExpressionBuilder
    def initialize(schema)
      @schema = schema
    end

    def build
      builder = yield(Record.new(@schema), Context.new)
      node = builder.build
      Expression.new(node,
                     Arrow::Field.new("result", node.return_type))
    end
  end
end

require "gandiva/expression-builder/add"
require "gandiva/expression-builder/context"
require "gandiva/expression-builder/divide"
require "gandiva/expression-builder/elsif"
require "gandiva/expression-builder/equal"
require "gandiva/expression-builder/field"
require "gandiva/expression-builder/greater-than"
require "gandiva/expression-builder/if"
require "gandiva/expression-builder/literal"
require "gandiva/expression-builder/less-than"
require "gandiva/expression-builder/multiply"
require "gandiva/expression-builder/record"
require "gandiva/expression-builder/subtract"