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The SolrIndexer listens to the repository JMS events to update the records in SOLR. It implements the org.fcrepo.indexer.Indexer interface for the indexing functionalities, which consists of the methods to handle new/updated records and deleted records.

  <!-- Solr Indexer -->
  <bean id="solrIndexer" class="org.fcrepo.indexer.solr.SolrIndexer">
    <constructor-arg ref="solrServer" />
  </bean>

  <!-- Standardalone solr Server used by the Solr indexer  -->
  <bean id="solrServer" class="org.apache.solr.client.solrj.impl.HttpSolrServer">
    <constructor-arg index="0" value="http://${fcrepo.host:localhost}:${solrIndexer.port:8983}/solr/" />
  </bean>

  <!-- Message Driven POJO (MDP) that manages individual indexers -->
  <bean id="indexerGroup" class="org.fcrepo.indexer.IndexerGroup">
    <constructor-arg name="repositoryURL" value="http://${fcrepo.host:localhost}:${fcrepo.port:8080}${fcrepo.context:/}rest" />
    <constructor-arg name="indexers">
      <set>
        ...
        <ref bean="solrIndexer"/>
        ...
      </set>
    </constructor-arg>
    ...
  </bean>