Class: KnjDB_sqlite3_result_java

Inherits:
Object
  • Object
show all
Defined in:
lib/knj/knjdb/drivers/sqlite3/knjdb_sqlite3.rb

Overview

This class handels results when running in JRuby.

Instance Method Summary collapse

Constructor Details

#initialize(driver, rs) ⇒ KnjDB_sqlite3_result_java

Returns a new instance of KnjDB_sqlite3_result_java.



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# File 'lib/knj/knjdb/drivers/sqlite3/knjdb_sqlite3.rb', line 105

def initialize(driver, rs)
  @index = 0
  retkeys = driver.knjdb.opts[:return_keys]
  
  if rs
    metadata = rs.getMetaData
    columns_count = metadata.getColumnCount
    
    @rows = []
    while rs.next
      row_data = {}
      for i in (1..columns_count)
        col_name = metadata.getColumnName(i)
        col_name = col_name.to_s.to_sym if retkeys == "symbols"
        row_data[col_name] = rs.getString(i)
      end
      
      @rows << row_data
    end
  end
end

Instance Method Details

#each ⇒ Object

Loops over every result and yields them.



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# File 'lib/knj/knjdb/drivers/sqlite3/knjdb_sqlite3.rb', line 137

def each
  while data = self.fetch
    yield(data)
  end
end

#fetch ⇒ Object

Returns a single result.



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# File 'lib/knj/knjdb/drivers/sqlite3/knjdb_sqlite3.rb', line 128

def fetch
  return false if !@rows
  ret = @rows[@index]
  return false if !ret
  @index += 1
  return ret
end