Interface RoutingSearchParameters.LocalSearchNeighborhoodOperatorsOrBuilder

All Superinterfaces:
com.google.protobuf.MessageLiteOrBuilder, com.google.protobuf.MessageOrBuilder
All Known Implementing Classes:
RoutingSearchParameters.LocalSearchNeighborhoodOperators, RoutingSearchParameters.LocalSearchNeighborhoodOperators.Builder
Enclosing class:
RoutingSearchParameters
public static interface RoutingSearchParameters.LocalSearchNeighborhoodOperatorsOrBuilder extends com.google.protobuf.MessageOrBuilder

  • Method Details

    • getUseRelocateValue

      int getUseRelocateValue()
       --- Inter-route operators ---
 Operator which moves a single node to another position.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5
 (where (1, 5) are first and last nodes of the path and can therefore not
 be moved):
 1 ->  3  -> [2] ->  4  -> 5
 1 ->  3  ->  4  -> [2] -> 5
 1 ->  2  ->  4  -> [3] -> 5
 1 -> [4] ->  2  ->  3  -> 5
      .operations_research.OptionalBoolean use_relocate = 1;
      Returns:
      The enum numeric value on the wire for useRelocate.

    • getUseRelocate

      OptionalBoolean getUseRelocate()
       --- Inter-route operators ---
 Operator which moves a single node to another position.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5
 (where (1, 5) are first and last nodes of the path and can therefore not
 be moved):
 1 ->  3  -> [2] ->  4  -> 5
 1 ->  3  ->  4  -> [2] -> 5
 1 ->  2  ->  4  -> [3] -> 5
 1 -> [4] ->  2  ->  3  -> 5
      .operations_research.OptionalBoolean use_relocate = 1;
      Returns:
      The useRelocate.

    • getUseRelocatePairValue

      int getUseRelocatePairValue()
       Operator which moves a pair of pickup and delivery nodes to another
 position where the first node of the pair must be before the second node
 on the same path. Compared to the light_relocate_pair operator, tries all
 possible positions of insertion of a pair (not only after another pair).
 Possible neighbors for the path 1 -> A -> B -> 2 -> 3 (where (1, 3) are
 first and last nodes of the path and can therefore not be moved, and
 (A, B) is a pair of nodes):
 1 -> [A] ->  2  -> [B] -> 3
 1 ->  2  -> [A] -> [B] -> 3
      .operations_research.OptionalBoolean use_relocate_pair = 2;
      Returns:
      The enum numeric value on the wire for useRelocatePair.

    • getUseRelocatePair

      OptionalBoolean getUseRelocatePair()
       Operator which moves a pair of pickup and delivery nodes to another
 position where the first node of the pair must be before the second node
 on the same path. Compared to the light_relocate_pair operator, tries all
 possible positions of insertion of a pair (not only after another pair).
 Possible neighbors for the path 1 -> A -> B -> 2 -> 3 (where (1, 3) are
 first and last nodes of the path and can therefore not be moved, and
 (A, B) is a pair of nodes):
 1 -> [A] ->  2  -> [B] -> 3
 1 ->  2  -> [A] -> [B] -> 3
      .operations_research.OptionalBoolean use_relocate_pair = 2;
      Returns:
      The useRelocatePair.

    • getUseLightRelocatePairValue

      int getUseLightRelocatePairValue()
       Operator which moves a pair of pickup and delivery nodes after another
 pair.
 Possible neighbors for paths 1 -> A -> B -> 2, 3 -> C -> D -> 4 (where
 (1, 2) and (3, 4) are first and last nodes of paths and can therefore not
 be moved, and (A, B) and (C, D) are pair of nodes):
 1 -> 2, 3 -> C -> [A] -> D -> [B] -> 4
 1 -> A -> [C] -> B -> [D] -> 2, 3 -> 4
      .operations_research.OptionalBoolean use_light_relocate_pair = 24;
      Returns:
      The enum numeric value on the wire for useLightRelocatePair.

    • getUseLightRelocatePair

      OptionalBoolean getUseLightRelocatePair()
       Operator which moves a pair of pickup and delivery nodes after another
 pair.
 Possible neighbors for paths 1 -> A -> B -> 2, 3 -> C -> D -> 4 (where
 (1, 2) and (3, 4) are first and last nodes of paths and can therefore not
 be moved, and (A, B) and (C, D) are pair of nodes):
 1 -> 2, 3 -> C -> [A] -> D -> [B] -> 4
 1 -> A -> [C] -> B -> [D] -> 2, 3 -> 4
      .operations_research.OptionalBoolean use_light_relocate_pair = 24;
      Returns:
      The useLightRelocatePair.

    • getUseRelocateNeighborsValue

      int getUseRelocateNeighborsValue()
       Relocate neighborhood which moves chains of neighbors.
 The operator starts by relocating a node n after a node m, then continues
 moving nodes which were after n as long as the "cost" added is less than
 the "cost" of the arc (m, n). If the new chain doesn't respect the domain
 of next variables, it will try reordering the nodes until it finds a
 valid path.
 Possible neighbors for path 1 -> A -> B -> C -> D -> E -> 2 (where (1, 2)
 are first and last nodes of the path and can therefore not be moved, A
 must be performed before B, and A, D and E are located at the same
 place):
 1 -> A -> C -> [B] -> D -> E -> 2
 1 -> A -> C -> D -> [B] -> E -> 2
 1 -> A -> C -> D -> E -> [B] -> 2
 1 -> A -> B -> D -> [C] -> E -> 2
 1 -> A -> B -> D -> E -> [C] -> 2
 1 -> A -> [D] -> [E] -> B -> C -> 2
 1 -> A -> B -> [D] -> [E] ->  C -> 2
 1 -> A -> [E] -> B -> C -> D -> 2
 1 -> A -> B -> [E] -> C -> D -> 2
 1 -> A -> B -> C -> [E] -> D -> 2
 This operator is extremely useful to move chains of nodes which are
 located at the same place (for instance nodes part of a same stop).
      .operations_research.OptionalBoolean use_relocate_neighbors = 3;
      Returns:
      The enum numeric value on the wire for useRelocateNeighbors.

    • getUseRelocateNeighbors

      OptionalBoolean getUseRelocateNeighbors()
       Relocate neighborhood which moves chains of neighbors.
 The operator starts by relocating a node n after a node m, then continues
 moving nodes which were after n as long as the "cost" added is less than
 the "cost" of the arc (m, n). If the new chain doesn't respect the domain
 of next variables, it will try reordering the nodes until it finds a
 valid path.
 Possible neighbors for path 1 -> A -> B -> C -> D -> E -> 2 (where (1, 2)
 are first and last nodes of the path and can therefore not be moved, A
 must be performed before B, and A, D and E are located at the same
 place):
 1 -> A -> C -> [B] -> D -> E -> 2
 1 -> A -> C -> D -> [B] -> E -> 2
 1 -> A -> C -> D -> E -> [B] -> 2
 1 -> A -> B -> D -> [C] -> E -> 2
 1 -> A -> B -> D -> E -> [C] -> 2
 1 -> A -> [D] -> [E] -> B -> C -> 2
 1 -> A -> B -> [D] -> [E] ->  C -> 2
 1 -> A -> [E] -> B -> C -> D -> 2
 1 -> A -> B -> [E] -> C -> D -> 2
 1 -> A -> B -> C -> [E] -> D -> 2
 This operator is extremely useful to move chains of nodes which are
 located at the same place (for instance nodes part of a same stop).
      .operations_research.OptionalBoolean use_relocate_neighbors = 3;
      Returns:
      The useRelocateNeighbors.

    • getUseRelocateSubtripValue

      int getUseRelocateSubtripValue()
       Relocate neighborhood that moves subpaths all pickup and delivery
 pairs have both pickup and delivery inside the subpath or both outside
 the subpath. For instance, for given paths:
 0 -> A -> B -> A' -> B' -> 5 -> 6 -> 8
 7 -> 9
 Pairs (A,A') and (B,B') are interleaved, so the expected neighbors are:
 0 -> 5 -> A -> B -> A' -> B' -> 6 -> 8
 7 -> 9

 0 -> 5 -> 6 -> A -> B -> A' -> B' -> 8
 7 -> 9

 0 -> 5 -> 6 -> 8
 7 -> A -> B -> A' -> B' -> 9
      .operations_research.OptionalBoolean use_relocate_subtrip = 25;
      Returns:
      The enum numeric value on the wire for useRelocateSubtrip.

    • getUseRelocateSubtrip

      OptionalBoolean getUseRelocateSubtrip()
       Relocate neighborhood that moves subpaths all pickup and delivery
 pairs have both pickup and delivery inside the subpath or both outside
 the subpath. For instance, for given paths:
 0 -> A -> B -> A' -> B' -> 5 -> 6 -> 8
 7 -> 9
 Pairs (A,A') and (B,B') are interleaved, so the expected neighbors are:
 0 -> 5 -> A -> B -> A' -> B' -> 6 -> 8
 7 -> 9

 0 -> 5 -> 6 -> A -> B -> A' -> B' -> 8
 7 -> 9

 0 -> 5 -> 6 -> 8
 7 -> A -> B -> A' -> B' -> 9
      .operations_research.OptionalBoolean use_relocate_subtrip = 25;
      Returns:
      The useRelocateSubtrip.

    • getUseExchangeValue

      int getUseExchangeValue()
       Operator which exchanges the positions of two nodes.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5
 (where (1, 5) are first and last nodes of the path and can therefore not
 be moved):
 1 -> [3] -> [2] ->  4  -> 5
 1 -> [4] ->  3  -> [2] -> 5
 1 ->  2  -> [4] -> [3] -> 5
      .operations_research.OptionalBoolean use_exchange = 4;
      Returns:
      The enum numeric value on the wire for useExchange.

    • getUseExchange

      OptionalBoolean getUseExchange()
       Operator which exchanges the positions of two nodes.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5
 (where (1, 5) are first and last nodes of the path and can therefore not
 be moved):
 1 -> [3] -> [2] ->  4  -> 5
 1 -> [4] ->  3  -> [2] -> 5
 1 ->  2  -> [4] -> [3] -> 5
      .operations_research.OptionalBoolean use_exchange = 4;
      Returns:
      The useExchange.

    • getUseExchangePairValue

      int getUseExchangePairValue()
       Operator which exchanges the positions of two pair of nodes. Pairs
 correspond to the pickup and delivery pairs defined in the routing model.
 Possible neighbor for the paths
 1 -> A -> B -> 2 -> 3 and 4 -> C -> D -> 5
 (where (1, 3) and (4, 5) are first and last nodes of the paths and can
 therefore not be moved, and (A, B) and (C,D) are pairs of nodes):
 1 -> [C] ->  [D] -> 2 -> 3, 4 -> [A] -> [B] -> 5
      .operations_research.OptionalBoolean use_exchange_pair = 22;
      Returns:
      The enum numeric value on the wire for useExchangePair.

    • getUseExchangePair

      OptionalBoolean getUseExchangePair()
       Operator which exchanges the positions of two pair of nodes. Pairs
 correspond to the pickup and delivery pairs defined in the routing model.
 Possible neighbor for the paths
 1 -> A -> B -> 2 -> 3 and 4 -> C -> D -> 5
 (where (1, 3) and (4, 5) are first and last nodes of the paths and can
 therefore not be moved, and (A, B) and (C,D) are pairs of nodes):
 1 -> [C] ->  [D] -> 2 -> 3, 4 -> [A] -> [B] -> 5
      .operations_research.OptionalBoolean use_exchange_pair = 22;
      Returns:
      The useExchangePair.

    • getUseExchangeSubtripValue

      int getUseExchangeSubtripValue()
       Operator which exchanges subtrips associated to two pairs of nodes,
 see use_relocate_subtrip for a definition of subtrips.
      .operations_research.OptionalBoolean use_exchange_subtrip = 26;
      Returns:
      The enum numeric value on the wire for useExchangeSubtrip.

    • getUseExchangeSubtrip

      OptionalBoolean getUseExchangeSubtrip()
       Operator which exchanges subtrips associated to two pairs of nodes,
 see use_relocate_subtrip for a definition of subtrips.
      .operations_research.OptionalBoolean use_exchange_subtrip = 26;
      Returns:
      The useExchangeSubtrip.

    • getUseCrossValue

      int getUseCrossValue()
       Operator which cross exchanges the starting chains of 2 paths, including
 exchanging the whole paths.
 First and last nodes are not moved.
 Possible neighbors for the paths 1 -> 2 -> 3 -> 4 -> 5 and 6 -> 7 -> 8
 (where (1, 5) and (6, 8) are first and last nodes of the paths and can
 therefore not be moved):
 1 -> [7] -> 3 -> 4 -> 5  6 -> [2] -> 8
 1 -> [7] -> 4 -> 5       6 -> [2 -> 3] -> 8
 1 -> [7] -> 5            6 -> [2 -> 3 -> 4] -> 8
      .operations_research.OptionalBoolean use_cross = 5;
      Returns:
      The enum numeric value on the wire for useCross.

    • getUseCross

      OptionalBoolean getUseCross()
       Operator which cross exchanges the starting chains of 2 paths, including
 exchanging the whole paths.
 First and last nodes are not moved.
 Possible neighbors for the paths 1 -> 2 -> 3 -> 4 -> 5 and 6 -> 7 -> 8
 (where (1, 5) and (6, 8) are first and last nodes of the paths and can
 therefore not be moved):
 1 -> [7] -> 3 -> 4 -> 5  6 -> [2] -> 8
 1 -> [7] -> 4 -> 5       6 -> [2 -> 3] -> 8
 1 -> [7] -> 5            6 -> [2 -> 3 -> 4] -> 8
      .operations_research.OptionalBoolean use_cross = 5;
      Returns:
      The useCross.

    • getUseCrossExchangeValue

      int getUseCrossExchangeValue()
       Not implemented yet. TODO(b/68128619): Implement.
      .operations_research.OptionalBoolean use_cross_exchange = 6;
      Returns:
      The enum numeric value on the wire for useCrossExchange.

    • getUseCrossExchange

      OptionalBoolean getUseCrossExchange()
       Not implemented yet. TODO(b/68128619): Implement.
      .operations_research.OptionalBoolean use_cross_exchange = 6;
      Returns:
      The useCrossExchange.

    • getUseRelocateExpensiveChainValue

      int getUseRelocateExpensiveChainValue()
       Operator which detects the relocate_expensive_chain_num_arcs_to_consider
 most expensive arcs on a path, and moves the chain resulting from cutting
 pairs of arcs among these to another position.
 Possible neighbors for paths 1 -> 2 (empty) and
 3 -> A ------> B --> C -----> D -> 4 (where A -> B and C -> D are the 2
 most expensive arcs, and the chain resulting from breaking them is
 B -> C):
 1 -> [B -> C] -> 2     3 -> A -> D -> 4
 1 -> 2      3 -> [B -> C] -> A -> D -> 4
 1 -> 2      3 -> A -> D -> [B -> C] -> 4
      .operations_research.OptionalBoolean use_relocate_expensive_chain = 23;
      Returns:
      The enum numeric value on the wire for useRelocateExpensiveChain.

    • getUseRelocateExpensiveChain

      OptionalBoolean getUseRelocateExpensiveChain()
       Operator which detects the relocate_expensive_chain_num_arcs_to_consider
 most expensive arcs on a path, and moves the chain resulting from cutting
 pairs of arcs among these to another position.
 Possible neighbors for paths 1 -> 2 (empty) and
 3 -> A ------> B --> C -----> D -> 4 (where A -> B and C -> D are the 2
 most expensive arcs, and the chain resulting from breaking them is
 B -> C):
 1 -> [B -> C] -> 2     3 -> A -> D -> 4
 1 -> 2      3 -> [B -> C] -> A -> D -> 4
 1 -> 2      3 -> A -> D -> [B -> C] -> 4
      .operations_research.OptionalBoolean use_relocate_expensive_chain = 23;
      Returns:
      The useRelocateExpensiveChain.

    • getUseTwoOptValue

      int getUseTwoOptValue()
       --- Intra-route operators ---
 Operator which reverses a subchain of a path. It is called TwoOpt
 because it breaks two arcs on the path; resulting paths are called
 two-optimal.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5
 (where (1, 5) are first and last nodes of the path and can therefore not
 be moved):
 1 -> [3 -> 2] -> 4  -> 5
 1 -> [4 -> 3  -> 2] -> 5
 1 ->  2 -> [4 -> 3] -> 5
      .operations_research.OptionalBoolean use_two_opt = 7;
      Returns:
      The enum numeric value on the wire for useTwoOpt.

    • getUseTwoOpt

      OptionalBoolean getUseTwoOpt()
       --- Intra-route operators ---
 Operator which reverses a subchain of a path. It is called TwoOpt
 because it breaks two arcs on the path; resulting paths are called
 two-optimal.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5
 (where (1, 5) are first and last nodes of the path and can therefore not
 be moved):
 1 -> [3 -> 2] -> 4  -> 5
 1 -> [4 -> 3  -> 2] -> 5
 1 ->  2 -> [4 -> 3] -> 5
      .operations_research.OptionalBoolean use_two_opt = 7;
      Returns:
      The useTwoOpt.

    • getUseOrOptValue

      int getUseOrOptValue()
       Operator which moves sub-chains of a path of length 1, 2 and 3 to another
 position in the same path.
 When the length of the sub-chain is 1, the operator simply moves a node
 to another position.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5, for a sub-chain
 length of 2 (where (1, 5) are first and last nodes of the path and can
 therefore not be moved):
 1 ->  4 -> [2 -> 3] -> 5
 1 -> [3 -> 4] -> 2  -> 5
 The OR_OPT operator is a limited version of 3-Opt (breaks 3 arcs on a
 path).
      .operations_research.OptionalBoolean use_or_opt = 8;
      Returns:
      The enum numeric value on the wire for useOrOpt.

    • getUseOrOpt

      OptionalBoolean getUseOrOpt()
       Operator which moves sub-chains of a path of length 1, 2 and 3 to another
 position in the same path.
 When the length of the sub-chain is 1, the operator simply moves a node
 to another position.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 -> 5, for a sub-chain
 length of 2 (where (1, 5) are first and last nodes of the path and can
 therefore not be moved):
 1 ->  4 -> [2 -> 3] -> 5
 1 -> [3 -> 4] -> 2  -> 5
 The OR_OPT operator is a limited version of 3-Opt (breaks 3 arcs on a
 path).
      .operations_research.OptionalBoolean use_or_opt = 8;
      Returns:
      The useOrOpt.

    • getUseLinKernighanValue

      int getUseLinKernighanValue()
       Lin-Kernighan operator.
 While the accumulated local gain is positive, performs a 2-OPT or a 3-OPT
 move followed by a series of 2-OPT moves. Returns a neighbor for which
 the global gain is positive.
      .operations_research.OptionalBoolean use_lin_kernighan = 9;
      Returns:
      The enum numeric value on the wire for useLinKernighan.

    • getUseLinKernighan

      OptionalBoolean getUseLinKernighan()
       Lin-Kernighan operator.
 While the accumulated local gain is positive, performs a 2-OPT or a 3-OPT
 move followed by a series of 2-OPT moves. Returns a neighbor for which
 the global gain is positive.
      .operations_research.OptionalBoolean use_lin_kernighan = 9;
      Returns:
      The useLinKernighan.

    • getUseTspOptValue

      int getUseTspOptValue()
       Sliding TSP operator.
 Uses an exact dynamic programming algorithm to solve the TSP
 corresponding to path sub-chains.
 For a subchain 1 -> 2 -> 3 -> 4 -> 5 -> 6, solves the TSP on
 nodes A, 2, 3, 4, 5, where A is a merger of nodes 1 and 6 such that
 cost(A,i) = cost(1,i) and cost(i,A) = cost(i,6).
      .operations_research.OptionalBoolean use_tsp_opt = 10;
      Returns:
      The enum numeric value on the wire for useTspOpt.

    • getUseTspOpt

      OptionalBoolean getUseTspOpt()
       Sliding TSP operator.
 Uses an exact dynamic programming algorithm to solve the TSP
 corresponding to path sub-chains.
 For a subchain 1 -> 2 -> 3 -> 4 -> 5 -> 6, solves the TSP on
 nodes A, 2, 3, 4, 5, where A is a merger of nodes 1 and 6 such that
 cost(A,i) = cost(1,i) and cost(i,A) = cost(i,6).
      .operations_research.OptionalBoolean use_tsp_opt = 10;
      Returns:
      The useTspOpt.

    • getUseMakeActiveValue

      int getUseMakeActiveValue()
       --- Operators on inactive nodes ---
 Operator which inserts an inactive node into a path.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path) are:
 1 -> [5] ->  2  ->  3  -> 4
 1 ->  2  -> [5] ->  3  -> 4
 1 ->  2  ->  3  -> [5] -> 4
      .operations_research.OptionalBoolean use_make_active = 11;
      Returns:
      The enum numeric value on the wire for useMakeActive.

    • getUseMakeActive

      OptionalBoolean getUseMakeActive()
       --- Operators on inactive nodes ---
 Operator which inserts an inactive node into a path.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path) are:
 1 -> [5] ->  2  ->  3  -> 4
 1 ->  2  -> [5] ->  3  -> 4
 1 ->  2  ->  3  -> [5] -> 4
      .operations_research.OptionalBoolean use_make_active = 11;
      Returns:
      The useMakeActive.

    • getUseRelocateAndMakeActiveValue

      int getUseRelocateAndMakeActiveValue()
       Operator which relocates a node while making an inactive one active.
 As of 3/2017, the operator is limited to two kinds of moves:
 - Relocating a node and replacing it by an inactive node.
 Possible neighbor for path 1 -> 5, 2 -> 3 -> 6 and 4 inactive
 (where 1,2 and 5,6 are first and last nodes of paths) is:
 1 -> 3 -> 5, 2 -> 4 -> 6.
 - Relocating a node and inserting an inactive node next to it.
 Possible neighbor for path 1 -> 5, 2 -> 3 -> 6 and 4 inactive
 (where 1,2 and 5,6 are first and last nodes of paths) is:
 1 -> 4 -> 3 -> 5, 2 -> 6.
      .operations_research.OptionalBoolean use_relocate_and_make_active = 21;
      Returns:
      The enum numeric value on the wire for useRelocateAndMakeActive.

    • getUseRelocateAndMakeActive

      OptionalBoolean getUseRelocateAndMakeActive()
       Operator which relocates a node while making an inactive one active.
 As of 3/2017, the operator is limited to two kinds of moves:
 - Relocating a node and replacing it by an inactive node.
 Possible neighbor for path 1 -> 5, 2 -> 3 -> 6 and 4 inactive
 (where 1,2 and 5,6 are first and last nodes of paths) is:
 1 -> 3 -> 5, 2 -> 4 -> 6.
 - Relocating a node and inserting an inactive node next to it.
 Possible neighbor for path 1 -> 5, 2 -> 3 -> 6 and 4 inactive
 (where 1,2 and 5,6 are first and last nodes of paths) is:
 1 -> 4 -> 3 -> 5, 2 -> 6.
      .operations_research.OptionalBoolean use_relocate_and_make_active = 21;
      Returns:
      The useRelocateAndMakeActive.

    • getUseExchangeAndMakeActiveValue

      int getUseExchangeAndMakeActiveValue()
       Operator which exchanges two nodes and inserts an inactive node.
 Possible neighbors for paths 0 -> 2 -> 4, 1 -> 3 -> 6 and 5 inactive are:
 0 -> 3 -> 4, 1 -> 5 -> 2 -> 6
 0 -> 3 -> 5 -> 4, 1 -> 2 -> 6
 0 -> 5 -> 3 -> 4, 1 -> 2 -> 6
 0 -> 3 -> 4, 1 -> 2 -> 5 -> 6
      .operations_research.OptionalBoolean use_exchange_and_make_active = 37;
      Returns:
      The enum numeric value on the wire for useExchangeAndMakeActive.

    • getUseExchangeAndMakeActive

      OptionalBoolean getUseExchangeAndMakeActive()
       Operator which exchanges two nodes and inserts an inactive node.
 Possible neighbors for paths 0 -> 2 -> 4, 1 -> 3 -> 6 and 5 inactive are:
 0 -> 3 -> 4, 1 -> 5 -> 2 -> 6
 0 -> 3 -> 5 -> 4, 1 -> 2 -> 6
 0 -> 5 -> 3 -> 4, 1 -> 2 -> 6
 0 -> 3 -> 4, 1 -> 2 -> 5 -> 6
      .operations_research.OptionalBoolean use_exchange_and_make_active = 37;
      Returns:
      The useExchangeAndMakeActive.

    • getUseExchangePathStartEndsAndMakeActiveValue

      int getUseExchangePathStartEndsAndMakeActiveValue()
       Operator which exchanges the first and last nodes of two paths and makes
 a node active.
 Possible neighbors for paths 0 -> 1 -> 2 -> 7, 6 -> 3 -> 4 -> 8
 and 5 inactive are:
 0 -> 5 -> 3 -> 4 -> 7, 6 -> 1 -> 2 -> 8
 0 -> 3 -> 4 -> 7, 6 -> 1 -> 5 -> 2 -> 8
 0 -> 3 -> 4 -> 7, 6 -> 1 -> 2 -> 5 -> 8
 0 -> 3 -> 5 -> 4 -> 7, 6 -> 1 -> 2 -> 8
 0 -> 3 -> 4 -> 5 -> 7, 6 -> 1 -> 2 -> 8
      .operations_research.OptionalBoolean use_exchange_path_start_ends_and_make_active = 38;
      Returns:
      The enum numeric value on the wire for useExchangePathStartEndsAndMakeActive.

    • getUseExchangePathStartEndsAndMakeActive

      OptionalBoolean getUseExchangePathStartEndsAndMakeActive()
       Operator which exchanges the first and last nodes of two paths and makes
 a node active.
 Possible neighbors for paths 0 -> 1 -> 2 -> 7, 6 -> 3 -> 4 -> 8
 and 5 inactive are:
 0 -> 5 -> 3 -> 4 -> 7, 6 -> 1 -> 2 -> 8
 0 -> 3 -> 4 -> 7, 6 -> 1 -> 5 -> 2 -> 8
 0 -> 3 -> 4 -> 7, 6 -> 1 -> 2 -> 5 -> 8
 0 -> 3 -> 5 -> 4 -> 7, 6 -> 1 -> 2 -> 8
 0 -> 3 -> 4 -> 5 -> 7, 6 -> 1 -> 2 -> 8
      .operations_research.OptionalBoolean use_exchange_path_start_ends_and_make_active = 38;
      Returns:
      The useExchangePathStartEndsAndMakeActive.

    • getUseMakeInactiveValue

      int getUseMakeInactiveValue()
       Operator which makes path nodes inactive.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 (where 1 and 4 are first
 and last nodes of the path) are:
 1 -> 3 -> 4 with 2 inactive
 1 -> 2 -> 4 with 3 inactive
      .operations_research.OptionalBoolean use_make_inactive = 12;
      Returns:
      The enum numeric value on the wire for useMakeInactive.

    • getUseMakeInactive

      OptionalBoolean getUseMakeInactive()
       Operator which makes path nodes inactive.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 (where 1 and 4 are first
 and last nodes of the path) are:
 1 -> 3 -> 4 with 2 inactive
 1 -> 2 -> 4 with 3 inactive
      .operations_research.OptionalBoolean use_make_inactive = 12;
      Returns:
      The useMakeInactive.

    • getUseMakeChainInactiveValue

      int getUseMakeChainInactiveValue()
       Operator which makes a "chain" of path nodes inactive.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 (where 1 and 4 are first
 and last nodes of the path) are:
 1 -> 3 -> 4 with 2 inactive
 1 -> 2 -> 4 with 3 inactive
 1 -> 4 with 2 and 3 inactive
      .operations_research.OptionalBoolean use_make_chain_inactive = 13;
      Returns:
      The enum numeric value on the wire for useMakeChainInactive.

    • getUseMakeChainInactive

      OptionalBoolean getUseMakeChainInactive()
       Operator which makes a "chain" of path nodes inactive.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 (where 1 and 4 are first
 and last nodes of the path) are:
 1 -> 3 -> 4 with 2 inactive
 1 -> 2 -> 4 with 3 inactive
 1 -> 4 with 2 and 3 inactive
      .operations_research.OptionalBoolean use_make_chain_inactive = 13;
      Returns:
      The useMakeChainInactive.

    • getUseSwapActiveValue

      int getUseSwapActiveValue()
       Operator which replaces an active node by an inactive one.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path) are:
 1 -> [5] ->  3  -> 4 with 2 inactive
 1 ->  2  -> [5] -> 4 with 3 inactive
      .operations_research.OptionalBoolean use_swap_active = 14;
      Returns:
      The enum numeric value on the wire for useSwapActive.

    • getUseSwapActive

      OptionalBoolean getUseSwapActive()
       Operator which replaces an active node by an inactive one.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path) are:
 1 -> [5] ->  3  -> 4 with 2 inactive
 1 ->  2  -> [5] -> 4 with 3 inactive
      .operations_research.OptionalBoolean use_swap_active = 14;
      Returns:
      The useSwapActive.

    • getUseSwapActiveChainValue

      int getUseSwapActiveChainValue()
       Operator which replaces a chain of active nodes by an inactive one.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path) are:
 1 -> [5] ->  3  -> 4 with 2 inactive
 1 ->  2  -> [5] -> 4 with 3 inactive
 1 -> [5] -> 4 with 2 and 3 inactive
      .operations_research.OptionalBoolean use_swap_active_chain = 35;
      Returns:
      The enum numeric value on the wire for useSwapActiveChain.

    • getUseSwapActiveChain

      OptionalBoolean getUseSwapActiveChain()
       Operator which replaces a chain of active nodes by an inactive one.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path) are:
 1 -> [5] ->  3  -> 4 with 2 inactive
 1 ->  2  -> [5] -> 4 with 3 inactive
 1 -> [5] -> 4 with 2 and 3 inactive
      .operations_research.OptionalBoolean use_swap_active_chain = 35;
      Returns:
      The useSwapActiveChain.

    • getUseExtendedSwapActiveValue

      int getUseExtendedSwapActiveValue()
       Operator which makes an inactive node active and an active one inactive.
 It is similar to SwapActiveOperator excepts that it tries to insert the
 inactive node in all possible positions instead of just the position of
 the node made inactive.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path) are:
 1 -> [5] ->  3  -> 4 with 2 inactive
 1 ->  3  -> [5] -> 4 with 2 inactive
 1 -> [5] ->  2  -> 4 with 3 inactive
 1 ->  2  -> [5] -> 4 with 3 inactive
      .operations_research.OptionalBoolean use_extended_swap_active = 15;
      Returns:
      The enum numeric value on the wire for useExtendedSwapActive.

    • getUseExtendedSwapActive

      OptionalBoolean getUseExtendedSwapActive()
       Operator which makes an inactive node active and an active one inactive.
 It is similar to SwapActiveOperator excepts that it tries to insert the
 inactive node in all possible positions instead of just the position of
 the node made inactive.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path) are:
 1 -> [5] ->  3  -> 4 with 2 inactive
 1 ->  3  -> [5] -> 4 with 2 inactive
 1 -> [5] ->  2  -> 4 with 3 inactive
 1 ->  2  -> [5] -> 4 with 3 inactive
      .operations_research.OptionalBoolean use_extended_swap_active = 15;
      Returns:
      The useExtendedSwapActive.

    • getUseShortestPathSwapActiveValue

      int getUseShortestPathSwapActiveValue()
       Swaps active nodes from node alternatives in sequence. Considers chains
 of nodes with alternatives, builds a DAG from the chain, each "layer" of
 the DAG being composed of the set of alternatives of the node at a given
 rank in the chain, fully connected to the next layer. A neighbor is built
 from the shortest path starting from the node before the chain (source),
 through the DAG to the node following the chain.
      .operations_research.OptionalBoolean use_shortest_path_swap_active = 34;
      Returns:
      The enum numeric value on the wire for useShortestPathSwapActive.

    • getUseShortestPathSwapActive

      OptionalBoolean getUseShortestPathSwapActive()
       Swaps active nodes from node alternatives in sequence. Considers chains
 of nodes with alternatives, builds a DAG from the chain, each "layer" of
 the DAG being composed of the set of alternatives of the node at a given
 rank in the chain, fully connected to the next layer. A neighbor is built
 from the shortest path starting from the node before the chain (source),
 through the DAG to the node following the chain.
      .operations_research.OptionalBoolean use_shortest_path_swap_active = 34;
      Returns:
      The useShortestPathSwapActive.

    • getUseShortestPathTwoOptValue

      int getUseShortestPathTwoOptValue()
       Similar to use_two_opt but returns the shortest path on the DAG of node
 alternatives of the reversed chain (cf. use_shortest_path_swap_active).
      .operations_research.OptionalBoolean use_shortest_path_two_opt = 36;
      Returns:
      The enum numeric value on the wire for useShortestPathTwoOpt.

    • getUseShortestPathTwoOpt

      OptionalBoolean getUseShortestPathTwoOpt()
       Similar to use_two_opt but returns the shortest path on the DAG of node
 alternatives of the reversed chain (cf. use_shortest_path_swap_active).
      .operations_research.OptionalBoolean use_shortest_path_two_opt = 36;
      Returns:
      The useShortestPathTwoOpt.

    • getUseNodePairSwapActiveValue

      int getUseNodePairSwapActiveValue()
       Operator which makes an inactive node active and an active pair of nodes
 inactive OR makes an inactive pair of nodes active and an active node
 inactive.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path and (2,3) is a pair
 of nodes) are:
 1 -> [5] -> 4 with (2,3) inactive
 Possible neighbors for the path 1 -> 2 -> 3 with (4,5) inactive
 (where 1 and 3 are first and last nodes of the path and (4,5) is a pair
 of nodes) are:
 1 -> [4] -> [5] -> 3 with 2 inactive
      .operations_research.OptionalBoolean use_node_pair_swap_active = 20;
      Returns:
      The enum numeric value on the wire for useNodePairSwapActive.

    • getUseNodePairSwapActive

      OptionalBoolean getUseNodePairSwapActive()
       Operator which makes an inactive node active and an active pair of nodes
 inactive OR makes an inactive pair of nodes active and an active node
 inactive.
 Possible neighbors for the path 1 -> 2 -> 3 -> 4 with 5 inactive
 (where 1 and 4 are first and last nodes of the path and (2,3) is a pair
 of nodes) are:
 1 -> [5] -> 4 with (2,3) inactive
 Possible neighbors for the path 1 -> 2 -> 3 with (4,5) inactive
 (where 1 and 3 are first and last nodes of the path and (4,5) is a pair
 of nodes) are:
 1 -> [4] -> [5] -> 3 with 2 inactive
      .operations_research.OptionalBoolean use_node_pair_swap_active = 20;
      Returns:
      The useNodePairSwapActive.

    • getUsePathLnsValue

      int getUsePathLnsValue()
       --- Large neighborhood search operators ---
 Operator which relaxes two sub-chains of three consecutive arcs each.
 Each sub-chain is defined by a start node and the next three arcs. Those
 six arcs are relaxed to build a new neighbor.
 PATH_LNS explores all possible pairs of starting nodes and so defines
 n^2 neighbors, n being the number of nodes.
 Note that the two sub-chains can be part of the same path; they even may
 overlap.
      .operations_research.OptionalBoolean use_path_lns = 16;
      Returns:
      The enum numeric value on the wire for usePathLns.

    • getUsePathLns

      OptionalBoolean getUsePathLns()
       --- Large neighborhood search operators ---
 Operator which relaxes two sub-chains of three consecutive arcs each.
 Each sub-chain is defined by a start node and the next three arcs. Those
 six arcs are relaxed to build a new neighbor.
 PATH_LNS explores all possible pairs of starting nodes and so defines
 n^2 neighbors, n being the number of nodes.
 Note that the two sub-chains can be part of the same path; they even may
 overlap.
      .operations_research.OptionalBoolean use_path_lns = 16;
      Returns:
      The usePathLns.

    • getUseFullPathLnsValue

      int getUseFullPathLnsValue()
       Operator which relaxes one entire path and all inactive nodes.
      .operations_research.OptionalBoolean use_full_path_lns = 17;
      Returns:
      The enum numeric value on the wire for useFullPathLns.

    • getUseFullPathLns

      OptionalBoolean getUseFullPathLns()
       Operator which relaxes one entire path and all inactive nodes.
      .operations_research.OptionalBoolean use_full_path_lns = 17;
      Returns:
      The useFullPathLns.

    • getUseTspLnsValue

      int getUseTspLnsValue()
       TSP-base LNS.
 Randomly merges consecutive nodes until n "meta"-nodes remain and solves
 the corresponding TSP.
 This defines an "unlimited" neighborhood which must be stopped by search
 limits. To force diversification, the operator iteratively forces each
 node to serve as base of a meta-node.
      .operations_research.OptionalBoolean use_tsp_lns = 18;
      Returns:
      The enum numeric value on the wire for useTspLns.

    • getUseTspLns

      OptionalBoolean getUseTspLns()
       TSP-base LNS.
 Randomly merges consecutive nodes until n "meta"-nodes remain and solves
 the corresponding TSP.
 This defines an "unlimited" neighborhood which must be stopped by search
 limits. To force diversification, the operator iteratively forces each
 node to serve as base of a meta-node.
      .operations_research.OptionalBoolean use_tsp_lns = 18;
      Returns:
      The useTspLns.

    • getUseInactiveLnsValue

      int getUseInactiveLnsValue()
       Operator which relaxes all inactive nodes and one sub-chain of six
 consecutive arcs. That way the path can be improved by inserting inactive
 nodes or swapping arcs.
      .operations_research.OptionalBoolean use_inactive_lns = 19;
      Returns:
      The enum numeric value on the wire for useInactiveLns.

    • getUseInactiveLns

      OptionalBoolean getUseInactiveLns()
       Operator which relaxes all inactive nodes and one sub-chain of six
 consecutive arcs. That way the path can be improved by inserting inactive
 nodes or swapping arcs.
      .operations_research.OptionalBoolean use_inactive_lns = 19;
      Returns:
      The useInactiveLns.

    • getUseGlobalCheapestInsertionPathLnsValue

      int getUseGlobalCheapestInsertionPathLnsValue()
       --- LNS-like large neighborhood search operators using heuristics ---
 Operator which makes all nodes on a route unperformed, and reinserts them
 using the GlobalCheapestInsertion heuristic.
      .operations_research.OptionalBoolean use_global_cheapest_insertion_path_lns = 27;
      Returns:
      The enum numeric value on the wire for useGlobalCheapestInsertionPathLns.

    • getUseGlobalCheapestInsertionPathLns

      OptionalBoolean getUseGlobalCheapestInsertionPathLns()
       --- LNS-like large neighborhood search operators using heuristics ---
 Operator which makes all nodes on a route unperformed, and reinserts them
 using the GlobalCheapestInsertion heuristic.
      .operations_research.OptionalBoolean use_global_cheapest_insertion_path_lns = 27;
      Returns:
      The useGlobalCheapestInsertionPathLns.

    • getUseLocalCheapestInsertionPathLnsValue

      int getUseLocalCheapestInsertionPathLnsValue()
       Same as above but using LocalCheapestInsertion as a heuristic.
      .operations_research.OptionalBoolean use_local_cheapest_insertion_path_lns = 28;
      Returns:
      The enum numeric value on the wire for useLocalCheapestInsertionPathLns.

    • getUseLocalCheapestInsertionPathLns

      OptionalBoolean getUseLocalCheapestInsertionPathLns()
       Same as above but using LocalCheapestInsertion as a heuristic.
      .operations_research.OptionalBoolean use_local_cheapest_insertion_path_lns = 28;
      Returns:
      The useLocalCheapestInsertionPathLns.

    • getUseRelocatePathGlobalCheapestInsertionInsertUnperformedValue

      int getUseRelocatePathGlobalCheapestInsertionInsertUnperformedValue()
       The following operator relocates an entire route to an empty path and
 then tries to insert the unperformed nodes using the global cheapest
 insertion heuristic.
      .operations_research.OptionalBoolean use_relocate_path_global_cheapest_insertion_insert_unperformed = 33;
      Returns:
      The enum numeric value on the wire for useRelocatePathGlobalCheapestInsertionInsertUnperformed.

    • getUseRelocatePathGlobalCheapestInsertionInsertUnperformed

      OptionalBoolean getUseRelocatePathGlobalCheapestInsertionInsertUnperformed()
       The following operator relocates an entire route to an empty path and
 then tries to insert the unperformed nodes using the global cheapest
 insertion heuristic.
      .operations_research.OptionalBoolean use_relocate_path_global_cheapest_insertion_insert_unperformed = 33;
      Returns:
      The useRelocatePathGlobalCheapestInsertionInsertUnperformed.

    • getUseGlobalCheapestInsertionExpensiveChainLnsValue

      int getUseGlobalCheapestInsertionExpensiveChainLnsValue()
       This operator finds heuristic_expensive_chain_lns_num_arcs_to_consider
 most expensive arcs on a route, makes the nodes in between pairs of these
 expensive arcs unperformed, and reinserts them using the
 GlobalCheapestInsertion heuristic.
      .operations_research.OptionalBoolean use_global_cheapest_insertion_expensive_chain_lns = 29;
      Returns:
      The enum numeric value on the wire for useGlobalCheapestInsertionExpensiveChainLns.

    • getUseGlobalCheapestInsertionExpensiveChainLns

      OptionalBoolean getUseGlobalCheapestInsertionExpensiveChainLns()
       This operator finds heuristic_expensive_chain_lns_num_arcs_to_consider
 most expensive arcs on a route, makes the nodes in between pairs of these
 expensive arcs unperformed, and reinserts them using the
 GlobalCheapestInsertion heuristic.
      .operations_research.OptionalBoolean use_global_cheapest_insertion_expensive_chain_lns = 29;
      Returns:
      The useGlobalCheapestInsertionExpensiveChainLns.

    • getUseLocalCheapestInsertionExpensiveChainLnsValue

      int getUseLocalCheapestInsertionExpensiveChainLnsValue()
       Same as above but using LocalCheapestInsertion as a heuristic for
 insertion.
      .operations_research.OptionalBoolean use_local_cheapest_insertion_expensive_chain_lns = 30;
      Returns:
      The enum numeric value on the wire for useLocalCheapestInsertionExpensiveChainLns.

    • getUseLocalCheapestInsertionExpensiveChainLns

      OptionalBoolean getUseLocalCheapestInsertionExpensiveChainLns()
       Same as above but using LocalCheapestInsertion as a heuristic for
 insertion.
      .operations_research.OptionalBoolean use_local_cheapest_insertion_expensive_chain_lns = 30;
      Returns:
      The useLocalCheapestInsertionExpensiveChainLns.

    • getUseGlobalCheapestInsertionCloseNodesLnsValue

      int getUseGlobalCheapestInsertionCloseNodesLnsValue()
       The following operator makes a node and its
 heuristic_close_nodes_lns_num_nodes closest neighbors unperformed along
 with each of their corresponding performed pickup/delivery pairs, and
 then reinserts them using the GlobalCheapestInsertion heuristic.
      .operations_research.OptionalBoolean use_global_cheapest_insertion_close_nodes_lns = 31;
      Returns:
      The enum numeric value on the wire for useGlobalCheapestInsertionCloseNodesLns.

    • getUseGlobalCheapestInsertionCloseNodesLns

      OptionalBoolean getUseGlobalCheapestInsertionCloseNodesLns()
       The following operator makes a node and its
 heuristic_close_nodes_lns_num_nodes closest neighbors unperformed along
 with each of their corresponding performed pickup/delivery pairs, and
 then reinserts them using the GlobalCheapestInsertion heuristic.
      .operations_research.OptionalBoolean use_global_cheapest_insertion_close_nodes_lns = 31;
      Returns:
      The useGlobalCheapestInsertionCloseNodesLns.

    • getUseLocalCheapestInsertionCloseNodesLnsValue

      int getUseLocalCheapestInsertionCloseNodesLnsValue()
       Same as above, but insertion positions for nodes are determined by the
 LocalCheapestInsertion heuristic.
      .operations_research.OptionalBoolean use_local_cheapest_insertion_close_nodes_lns = 32;
      Returns:
      The enum numeric value on the wire for useLocalCheapestInsertionCloseNodesLns.

    • getUseLocalCheapestInsertionCloseNodesLns

      OptionalBoolean getUseLocalCheapestInsertionCloseNodesLns()
       Same as above, but insertion positions for nodes are determined by the
 LocalCheapestInsertion heuristic.
      .operations_research.OptionalBoolean use_local_cheapest_insertion_close_nodes_lns = 32;
      Returns:
      The useLocalCheapestInsertionCloseNodesLns.