Module: Neo4j::Core::ToJava

Included in:
Algo, Algo::CostEvaluator, Algo::EstimateEvaluator, Rels::Traverser, Traversal, Neo4j::Core::Traversal::Traverser
Defined in:
lib/neo4j-core/to_java.rb

Overview

A Utility class for translating Ruby object to Neo4j Java types

Class Method Summary collapse

Class Method Details

.dir_from_java(dir) ⇒ Object 



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# File 'lib/neo4j-core/to_java.rb', line 19

def dir_from_java(dir)
  case dir
    when Java::OrgNeo4jGraphdb::Direction::OUTGOING then
      :outgoing
    when Java::OrgNeo4jGraphdb::Direction::BOTH then
      :both
    when Java::OrgNeo4jGraphdb::Direction::INCOMING then
      :incoming
    else
      raise "unknown direction '#{dir} / #{dir.class}'"
  end
end

.dir_to_java(dir) ⇒ Object 



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# File 'lib/neo4j-core/to_java.rb', line 34

def dir_to_java(dir)
  case dir
    when :outgoing then
      Java::OrgNeo4jGraphdb::Direction::OUTGOING
    when :both then
      Java::OrgNeo4jGraphdb::Direction::BOTH
    when :incoming then
      Java::OrgNeo4jGraphdb::Direction::INCOMING
    else
      raise "unknown direction '#{dir}', expects argument: outgoing, :incoming or :both"
  end
end

.type_to_java(type) ⇒ Object 



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# File 'lib/neo4j-core/to_java.rb', line 6

def type_to_java(type)
  Java::OrgNeo4jGraphdb::DynamicRelationshipType.withName(type.to_s)
end

.types_to_java(types) ⇒ Object 



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# File 'lib/neo4j-core/to_java.rb', line 12

def types_to_java(types)
  types.inject([]) { |result, type| result << type_to_java(type) }.to_java(Java::OrgNeo4jGraphdb::RelationshipType)
end