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org.neo4j.kernel.impl.core.NodeProxy.class_eval do
# Returns an enumeration of aggregates that this nodes belongs to.
#
# Is used in combination with the Neo4j::AggregateNodeMixin
#
# ==== Example
#
# class MyNode
# include Neo4j::NodeMixin
# include Neo4j::NodeAggregateMixin
# end
#
# agg1 = MyNode
# agg1.aggregate([node1,node2]).group_by(:colour)
#
# agg2 = MyNode
# agg2.aggregate([node1,node2]).group_by(:age)
#
# [*node1.aggregates] # => [agg1, agg2]
#
def aggregates
Neo4j::Aggregate::AggregateEnum.new(self)
end
# Returns an enumeration of groups that this nodes belongs to.
#
# Is used in combination with the Neo4j::AggregateNodeMixin
#
# ==== Parameters
#
# * group which aggregate group we want, default is :all - an enumeration of all groups will be return
#
#
# ==== Returns
# an enumeration of all groups that this node belongs to, or if the group parameter was used
# only the given group or nil if not found.
#
# ==== Example
#
# class MyNode
# include Neo4j::NodeMixin
# include Neo4j::AggregateNodeMixin
# end
#
# agg1 = MyNode
# agg1.aggregate(:colours).group_by(:colour)
#
# agg2 = MyNode
# agg2.aggregate(:age).group_by(:age)
#
# agg1 << node1
# agg2 << node1
#
# [*node1.aggregate_groups] # => [agg1[some_group], agg2[some_other_group]]
#
def aggregate_groups(group = :all)
return rels.incoming(:aggregate).nodes if group == :all
[*rels.incoming(:aggregate).filter{self[:aggregate_group] == group.to_s}.nodes][0]
end
end
module Neo4j
module NodeMixin
def_delegators :@_java_node, :aggregate_groups, :aggregates
end
end
Version data entries
9 entries across 9 versions & 1 rubygems