Result Grouping / Field Collapsing
Result grouping cannot directly be used within SolrRepository
but can be applied via SolrTemplate
. Please mind, that the result will be a GroupPage
.
Field field = new SimpleField("popularity");
Function func = ExistsFunction.exists("description");
Query query = new SimpleQuery("inStock:true");
SimpleQuery groupQuery = new SimpleQuery(new SimpleStringCriteria("*:*"));
GroupOptions groupOptions = new GroupOptions()
.addGroupByField(field)
.addGroupByFunction(func)
.addGroupByQuery(query);
groupQuery.setGroupOptions(groupOptions);
GroupPage<Product> page = solrTemplate.queryForGroupPage(query, Product.class);
GroupResult<Product> fieldGroup = page.getGroupResult(field);
GroupResult<Product> funcGroup = page.getGroupResult(func);
GroupResult<Product> queryGroup = page.getGroupResult(query);