Class: RDBI::Driver::JDBC::Cursor

Inherits:
Cursor
  • Object
show all
Defined in:
lib/caruby/rdbi/driver/jdbc.rb

Instance Method Summary collapse

Constructor Details

#initialize(handle) ⇒ Cursor

TODO: update this to use real calls, not array to get this working, we’ll just build the array for now.



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 139

def initialize(handle)
  super handle

  @index = 0
  @rs = []

  return if handle.nil?

  rs       = handle.getResultSet
  metadata = rs.getMetaData

  while rs.next
    data = []
    (1..metadata.getColumnCount).each do |n|
      data << parse_column(rs, n, metadata)
    end
    @rs << data
  end
end

Instance Method Details

#[](index) ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 195

def [](index)
  @rs[index]
end

#affected_count ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 170

def affected_count
  0
end

#all ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 186

def all
  @rs
end

#coerce_to_array ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 219

def coerce_to_array
  @rs
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 203

def empty?
  @rs.empty?
end

#fetch(count = 1) ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 190

def fetch(count = 1)
  return [] if last_row?
  @rs[@index, count]
end

#finish ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 215

def finish
  @handle.close
end

#first ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 174

def first
  @rs.first
end

#last ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 178

def last
  @rs.last
end

#last_row? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 199

def last_row?
  @index == @rs.size
end

#next_row ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 159

def next_row
  return nil if last_row?
  val = @rs[@index]
  @index += 1
  val
end

#rest ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 182

def rest
  @rs[@index..-1]
end

#result_count ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 166

def result_count
  @rs.size
end

#rewind ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 207

def rewind
  @index = 0
end

#size ⇒ Object 



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# File 'lib/caruby/rdbi/driver/jdbc.rb', line 211

def size
  @rs.length
end