added max_cost_evaluator

lib/neo4jr-simple.rb

@@ -38,6 +38,7 @@ module Neo4jr
 require 'neo4jr/returnable_evaluator'
 require 'neo4jr/stop_evaluator'
 require 'neo4jr/simple_cost_evaluator'
+require 'neo4jr/max_cost_evaluator'
 require 'neo4jr/order'
 require 'neo4jr/direction'
 require 'neo4jr/path_rater'

lib/neo4jr/max_cost_evaluator.rb

@@ -0,0 +1,13 @@
+module Neo4jr
+  class MaxCostEvaluator
+    include org.neo4j.graphalgo.shortestpath.MaxCostEvaluator
+
+    def initialize &block
+      @evaluator_block = block
+    end
+
+    def maxCostExceeded currentCost
+      @evaluator_block.call currentCost
+    end
+  end
+end

neo4jr-simple.gemspec

@@ -9,7 +9,7 @@ Gem::Specification.new do |s|
 
   s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
   s.authors = ["Matthew Deiters"]
-  s.date = %q{2010-01-26}
+  s.date = %q{2010-01-27}
   s.default_executable = %q{neosh}
   s.description = %q{A simple, ready to go JRuby wrapper for the Neo4j graph database engine. Nothing more then Neo4j and Ruby goodness}
   s.email = %q{matthew_deiters@mckinsey.com}