Class: Libcouchbase::ResultsFiber
- Inherits:
-
Results
- Object
- Results
- Libcouchbase::ResultsFiber
show all
- Defined in:
- lib/libcouchbase/results_fiber.rb
Instance Attribute Summary
Attributes inherited from Results
#complete_result_set, #metadata, #query_completed, #query_in_progress
Instance Method Summary
collapse
Constructor Details
#initialize(query, &row_modifier) ⇒ ResultsFiber
Returns a new instance of ResultsFiber.
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# File 'lib/libcouchbase/results_fiber.rb', line 7
def initialize(query, &row_modifier)
@query_in_progress = false
@query_completed = false
@complete_result_set = false
@results = []
@fiber = nil
@resume_results = true
@query = query
@row_modifier = row_modifier
end
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Instance Method Details
#cancel ⇒ Object
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# File 'lib/libcouchbase/results_fiber.rb', line 158
def cancel
@cancelled = true
@query.cancel
resume
end
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#count ⇒ Object
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# File 'lib/libcouchbase/results_fiber.rb', line 124
def count
first unless @metadata
@query.get_count @metadata
end
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#each(&blk) ⇒ Object
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# File 'lib/libcouchbase/results_fiber.rb', line 69
def each(&blk)
return load_all.each unless block_given?
if @complete_result_set
@results.each &blk
else
perform
@fiber = Fiber.current
begin
index = 0
remaining = index < @results.length
while !@query_completed || remaining do
if remaining
@resume_results = false
yield @results[index]
index += 1
else
@resume_results = true
resume
end
remaining = index < @results.length
end
ensure
@resume_results = true
cancel unless @query_completed
@fiber = nil
end
end
self
end
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#first ⇒ Object
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# File 'lib/libcouchbase/results_fiber.rb', line 104
def first
if @complete_result_set || @results.length > 0
@results[0]
else
perform is_complete: false, limit: 1
@fiber = Fiber.current
begin
while not @query_completed do
resume
end
ensure
@fiber = nil
end
result = @results[0]
result
end
end
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#options(**opts) ⇒ Object
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# File 'lib/libcouchbase/results_fiber.rb', line 26
def options(**opts)
reset
@query.options.merge!(opts)
end
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#reset ⇒ Object
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# File 'lib/libcouchbase/results_fiber.rb', line 62
def reset
raise 'query in progress' if @query_in_progress
@query_in_progress = false
@complete_result_set = false
@results.clear
end
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#stream(&blk) ⇒ Object
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# File 'lib/libcouchbase/results_fiber.rb', line 32
def stream(&blk)
if @complete_result_set
@results.each &blk
else
perform is_complete: false
@fiber = Fiber.current
begin
remaining = @results.length > 0
while !@query_completed || remaining do
if remaining
@resume_results = false
yield @results.shift
else
@resume_results = true
resume
end
remaining = @results.length > 0
end
ensure
@resume_results = true
cancel unless @query_completed
@fiber = nil
end
end
self
end
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#take(num) ⇒ Object
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# File 'lib/libcouchbase/results_fiber.rb', line 129
def take(num)
if @complete_result_set || @results.length >= num
@results[0...num]
else
perform is_complete: false, limit: num
@fiber = Fiber.current
result = []
begin
index = 0
remaining = index < @results.length && index < num
while !@query_completed || remaining do
if remaining
result << @results[index]
index += 1
else
resume
end
remaining = index < @results.length && index < num
end
ensure
@fiber = nil
end
result
end
end
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