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Contents
# frozen_string_literal: true
module Valkyrie::Persistence::Solr
# Composite object to make multiple custom indexers act like a single one, so
# that upstream code doesn't have to know how to iterate over indexers.
#
# @see https://en.wikipedia.org/wiki/Composite_pattern
class CompositeIndexer
attr_reader :indexers
# @param [Array<Object>] indexers
def initialize(*indexers)
@indexers = indexers
end
# Construct a new Instance object
# @param [Valkyrie::Resource] resource
def new(resource:)
Instance.new(indexers, resource: resource)
end
# Class providing the common method interface for the Indexer
class Instance
attr_reader :indexers, :resource
# @param [Array<Object>] indexers
# @param [Valkyrie::Resource] resource
def initialize(indexers, resource:)
@resource = resource
@indexers = indexers.map { |i| i.new(resource: resource) }
end
# Generate the Solr Documents from the indexers
# @return [Array<Hash>]
def to_solr
indexers.map(&:to_solr).inject({}, &:merge)
end
end
end
end
Version data entries
47 entries across 47 versions & 1 rubygems