Module: Pacer::Core::Graph::GraphIndexRoute

Included in:
PacerGraph
Defined in:
lib/pacer/core/graph/graph_index_route.rb

Overview

This module adds indexed route methods to the basic graph classes returned from the blueprints library.

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#choose_best_index ⇒ Object

Returns the value of attribute choose_best_index.



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# File 'lib/pacer/core/graph/graph_index_route.rb', line 10

def choose_best_index
  @choose_best_index
end

#never_scan ⇒ Object

If never_scan is true, raise an exception if a graph route does not start with an indexed property. Large databases could spend hours scanning!



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# File 'lib/pacer/core/graph/graph_index_route.rb', line 9

def never_scan
  @never_scan
end

#search_manual_indices ⇒ Object

Returns the value of attribute search_manual_indices.



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# File 'lib/pacer/core/graph/graph_index_route.rb', line 11

def search_manual_indices
  @search_manual_indices
end

Instance Method Details

#e(*args, &block) ⇒ Object

Returns a new route to all graph edges. Standard filter options.



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# File 'lib/pacer/core/graph/graph_index_route.rb', line 29

def e(*args, &block)
  filters = Pacer::Route.edge_filters(self, args)
  if features.supportsKeyIndices or (search_manual_indices and features.supportsIndices)
    route = indexed_route(:edge, filters, block)
  end
  if route
    route
  elsif never_scan
    fail Pacer::ClientError, "No indexed properties found among: #{ filters.property_keys.join ', ' }"
  else
    super(filters, &block)
  end
end

#v(*args, &block) ⇒ Object

Returns a new route to all graph vertices. Standard filter options.



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# File 'lib/pacer/core/graph/graph_index_route.rb', line 14

def v(*args, &block)
  filters = Pacer::Route.filters(self, args)
  if features.supportsKeyIndices or (search_manual_indices and features.supportsIndices)
    route = indexed_route(:vertex, filters, block)
  end
  if route
    route
  elsif never_scan
    fail Pacer::ClientError, "No indexed properties found among: #{ filters.property_keys.join ', ' }"
  else
    super(filters, &block)
  end
end