Class: RDBI::Driver::Mock::Cursor

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

Instance Method Summary collapse

Constructor Details

#initialize(handle) ⇒ Cursor

Returns a new instance of Cursor.



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# File 'lib/rdbi/driver/mock.rb', line 75

def initialize(handle)
  super(handle.dup)
  @index = 0
end

Instance Method Details

#[](index) ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 118

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

#affected_count ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 97

def affected_count
  16 # magic number
end

#all ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 114

def all
  @handle.dup
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rdbi/driver/mock.rb', line 131

def empty?
  @handle.empty?
end

#fetch(count = 1) ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 80

def fetch(count=1)
  return [] if last_row?
  a = []
  count.times { a.push(next_row) }
  return a
end

#first ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 101

def first
  @handle.first
end

#last ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 105

def last
  @handle.last
end

#last_row? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rdbi/driver/mock.rb', line 122

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

#next_row ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 87

def next_row
  retval = @handle[@index]
  @index += 1
  return retval
end

#rest ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 109

def rest
  oindex, @index = @index, @handle.size
  @handle[oindex, @index]
end

#result_count ⇒ Object 



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# File 'lib/rdbi/driver/mock.rb', line 93

def result_count
  @handle.size
end

#rewind ⇒ Object

Raises:

  • (StandardError) 


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# File 'lib/rdbi/driver/mock.rb', line 126

def rewind
  raise StandardError, "cannot rewind without rewindable_result set to true" unless rewindable_result
  @index = 0
end