class ArcFurnace::InnerJoin

Perform a join between a hash and a source, only producing rows from the source that match a row from the hash. The resulting row will merge the source “into” the hash, that is, values from the source that share the same keys will overwrite values in the hash value for the corresponding source row.

Example: Source row { id: “foo”, key1: “boo”, key2: “bar” } Matching hash row { id: “foo”, key1: “bar”, key3: “baz” } Result row: { id: “foo”, key1: “boo”, key2: “bar”, key3: “baz” }

Public Instance Methods

advance() click to toggle source
# File lib/arc-furnace/inner_join.rb, line 16
def advance
  loop do
    @value = source.row
    break if @value.nil?
    if merge_source_row(@value)
      break
    end
  end
end