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Christoph Strobl on spring-data-solr
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Enterprise Java User Group Austria
September 25, 2013
Technology
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Christoph Strobl on spring-data-solr
Enterprise Java User Group Austria
September 25, 2013
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Transcript
Spring Data Solr I n t r o d u
c t i o n t o 2013-09-25, Christoph Strobl @eJUG, 48.299707,14.286896
Christoph Strobl Software Engineer Project Lead Spring Data Solr
[email protected]
@stroblchristoph https:/ /github.com/christophstrobl
Apache Solr ...in a hurry...
Apache Solr Enterprise Search Server Built on top of Lucene
Open Interfaces Multiple Collections Clusterable ...
Infrastructure Setup Solr
ZK Infrastructure Setup S1L S1R S2L S2R
ZK Infrastructure Setup S1L S1R S2L S2R
Inside Solr Cores Schema
Solr Schema Types Analysers Fields <fieldType name="string" class="solr.StrField" sortMissingLast="true" />
<fieldType name="lowercase" class="solr.TextField"> <analyzer> <tokenizer class="solr.KeywordTokenizerFactory"/> <filter class="solr.LowerCaseFilterFactory" /> </analyzer> </fieldType> <field name="name_ci" type="lowercase" indexed="true" stored="false"/>
Schemaless since 4.4
Connection HTTP SolrJ q=name:(spring data) AND type:solr&start=0&rows=10 new SolrQuery("name:(spring data)
AND type:solr") .setStart(0).setRows(10);
Solr Query public List<Product> findByNameOrDescription(String name, String description) { String
queryString = "name:" + ClientUtils.escapeQueryChars(name) + " OR description:" + ClientUtils.escapeQueryChars(description); try { SolrQuery query = new SolrQuery(queryString); query.setStart(0).setRows(0); QueryResponse response = solrServer.query(query); long totalValues = response.getResults().getNumFound(); query.setRows(Long.valueOf(totalValues).intValue()); return solrServer.query(query).getBeans(Product.class); } catch (SolrServerException e) { throw ExceptionTranslator.translate(e); } return Collections.emptyList(); }
Spring-Data-Solr
Spring-Data-Solr Spring Data offers serveral APIs around a common SPI
Integration with Apache Solr Community Project with support from pivotal
Connection HTTP SolrJ Spring Data Solr new SimpleQuery(new Criteria("name") .is("spring",
"data").and("type").is("solr") ).setPageRequest(new PageRequest(0, 10)); q=name:(spring data) AND type:solr&start=0&rows=10 new SolrQuery("name:(spring data) AND type:solr") .setStart(0).setRows(10);
Solr Template
SolrTemplate Product product = new Product("foo"); solrTemplate.saveBean(prodcut); solrTemplate.commit(); //... Product
recalled = solrTemplate.queryForObject( new SimpleQuery(new Criteria("id").is("foo")), Product.class); Page<Product> page = solrTemplate.queryForPage( new SimpleQuery(new SimpleStringCriteria("*:*"), Product.class); //... solrTemplate.deleteById("foo"); solrTemplate.commit();
Repository
Repository interface ProductRepository extends SolrCrudRepository<Product, String> { } Product product
= new Product("foo"); repo.save(product) //... Product recalled = repo.findOne("foo"); Page<Product> page = repo.findAll(); //... repo.delete(product);
Derived Queries
Derived Queries interface ProductRepository extends SolrCrudRepository<Product, String> { Page<Product> findByNameStartingWith(String
name, Pageable page); List<Product> findByNameOrDescription(@Boost(2) String name, String description); } Page<Product> page = repo.findByNameStartingWith("fo", new PageRequest(0,10)); List<Product> list = repo.findByNameOrDescription("foo", "foo");
/*Named*/ Queries
/*Named*/ Queries interface ProductRepository extends SolrCrudRepository<Product, String> { @Query("name:?0*") Page<Product>
findByNameStartingWith(String name, Pageable page); @Query(name="findByNameOrDescriptionBoostNameBy2") List<Product> findByNameOrDescription(String name, String description); }
Demo
Custom Repository
Faceting
Highlighting
Custom Types
Questions?
Thank you!