Class: AgnosticBackend::Queryable::QueryBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/agnostic_backend/queryable/query_builder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(index) ⇒ QueryBuilder

Returns a new instance of QueryBuilder.



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 8

def initialize(index)
  @index = index
end

Instance Attribute Details

#index ⇒ Object (readonly)

Returns the value of attribute index.



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 5

def index
  @index
end

#query ⇒ Object (readonly)

Returns the value of attribute query.



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 6

def query
  @query
end

Instance Method Details

#build(**options) ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 51

def build(**options)
  query = create_query(self, **options)
  query.children << build_where_expression if @criterion
  query.children << build_select_expression if @projections
  query.children << build_order_expression if @order_qualifiers
  query.children << build_limit_expression if @limit
  query.children << build_offset_expression if @offset
  query.children << build_filter_expression if @filter
  query.children << build_scroll_cursor_expression if @scroll_cursor

  @query = query
end

#criteria_builder ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 12

def criteria_builder
  CriteriaBuilder.new(self)
end

#filter(filter) ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 46

def filter(filter)
  @filter = filter
  self
end

#limit(value) ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 31

def limit(value)
  @limit = value
  self
end

#offset(value) ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 36

def offset(value)
  @offset = value
  self
end

#order(attribute, direction) ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 26

def order(attribute, direction)
  (@order_qualifiers ||= []).push build_order_qualifier(attribute, direction)
  self
end

#scroll_cursor(value) ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 41

def scroll_cursor(value)
  @scroll_cursor = value
  self
end

#select(*attributes) ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 21

def select(*attributes)
  (@projections ||= []).push(*attributes)
  self
end

#where(criterion) ⇒ Object 



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# File 'lib/agnostic_backend/queryable/query_builder.rb', line 16

def where(criterion)
  @criterion = criterion
  self
end