Class: Terastream::Query::ResultSetMetadata

Inherits:
Object
  • Object
show all
Defined in:
lib/terastream/query/result_set_metadata.rb

Instance Method Summary collapse

Constructor Details

#initialize(record_set) ⇒ ResultSetMetadata

Returns a new instance of ResultSetMetadata.



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# File 'lib/terastream/query/result_set_metadata.rb', line 4

def initialize(record_set)
  @metadata = record_set.getMetaData()
end

Instance Method Details

#column_count ⇒ Object 



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# File 'lib/terastream/query/result_set_metadata.rb', line 8

def column_count
  @column_count ||= @metadata.getColumnCount()
end

#columns ⇒ Object 



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# File 'lib/terastream/query/result_set_metadata.rb', line 12

def columns
  @columns ||= extract_metadata
end

#headers ⇒ Object 



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# File 'lib/terastream/query/result_set_metadata.rb', line 16

def headers
  @heders ||= columns.map{ |col| col[:name] }
end

#types ⇒ Object 



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# File 'lib/terastream/query/result_set_metadata.rb', line 20

def types
  @types ||= columns.map{ |col| col[:type] }
end