Package | Description |
---|---|
org.apache.tinkerpop.gremlin.process.traversal.strategy.optimization |
Class and Description |
---|
AdjacentToIncidentStrategy
This strategy looks for vertex- and value-emitting steps followed by a
CountGlobalStep and replaces the
pattern with an edge- or property-emitting step followed by a CountGlobalStep . |
ByModulatorOptimizationStrategy
This strategy looks for standard traversals in by-modulators and replaces them with more optimized traversals
(e.g.
|
CountStrategy
This strategy optimizes any occurrence of
CountGlobalStep followed by an IsStep . |
EarlyLimitStrategy
This strategy looks for
RangeGlobalStep s that can be moved further left in the traversal and thus be applied
earlier. |
FilterRankingStrategy
FilterRankingStrategy reorders filter- and order-steps according to their rank. |
IdentityRemovalStrategy
IdentityRemovalStrategy looks for IdentityStep instances and removes them. |
IncidentToAdjacentStrategy
This strategy looks for
.outE().inV() , .inE().outV() and .bothE().otherV()
and replaces these step sequences with .out() , .in() or .both() respectively. |
InlineFilterStrategy
This strategy analyzes filter-steps with child traversals that themselves are pure filters.
|
LazyBarrierStrategy
LazyBarrierStrategy is an OLTP-only strategy that automatically inserts a NoOpBarrierStep after every
FlatMapStep if neither path-tracking nor partial path-tracking is required, and the next step is not the
traversal's last step or a Barrier . |
MatchPredicateStrategy
MatchWhereStrategy will fold any post-where() step that maintains a traversal constraint into
match() . |
OrderLimitStrategy
OrderLimitStrategy is an OLAP strategy that folds a RangeGlobalStep into a preceding
OrderGlobalStep . |
PathProcessorStrategy
PathProcessStrategy is an OLAP strategy that does its best to turn non-local children in where()
and select() into local children by inlining components of the non-local child. |
PathRetractionStrategy |
ProductiveByStrategy
Takes an argument of
by() and wraps it CoalesceStep so that the result is either the initial
Traversal argument or null . |
ProductiveByStrategy.Builder |
RepeatUnrollStrategy
RepeatUnrollStrategy is an OLTP-only strategy that unrolls any RepeatStep if it uses a constant
number of loops (times(x) ) and doesn't emit intermittent elements. |
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