Java tutorial
/* * Copyright 2012 - 2018 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * https://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.springframework.data.solr.core; import org.apache.solr.client.solrj.SolrClient; import org.apache.solr.client.solrj.SolrQuery; import org.springframework.core.convert.converter.Converter; import org.springframework.data.solr.core.query.SolrDataQuery; import org.springframework.lang.Nullable; /** * The QueryParser takes a spring-data-solr Query and returns a SolrQuery. All Query parameters are translated into the * according SolrQuery fields. <b>Example:</b> <code> * Query query = new SimpleQuery(new Criteria("field_1").is("value_1").and("field_2").startsWith("value_2")).addProjection("field_3").setPageRequest(new PageRequest(0, 10)); * </code> Will be parsed to a SolrQuery that outputs the following <code> * q=field_1%3Avalue_1+AND+field_2%3Avalue_2*&fl=field_3&start=0&rows=10 * </code> * * @author Christoph Strobl */ public interface QueryParser { /** * Convert given Query into a SolrQuery executable via {@link SolrClient} * * @param query * @return * @deprecated since 4.0. Use {@link #constructSolrQuery(SolrDataQuery, Class)} instead. */ @Deprecated default SolrQuery constructSolrQuery(SolrDataQuery query) { return constructSolrQuery(query, null); } /** * Convert given Query into a SolrQuery executable via {@link SolrClient} * * @param query * @param domainType used for mapping fields to properties. Can be {@literal null}. * @return * @since 4.0 */ SolrQuery constructSolrQuery(SolrDataQuery query, @Nullable Class<?> domainType); /** * Get the queryString to use withSolrQuery.setParam(CommonParams.Q, "queryString"} * * @param query * @return String representation of query without faceting, pagination, projection... * @deprecated since 4.0. Use {@link #getQueryString(SolrDataQuery, Class)} instead. */ @Deprecated default String getQueryString(SolrDataQuery query) { return getQueryString(query, null); } /** * Get the queryString to use withSolrQuery.setParam(CommonParams.Q, "queryString"} * * @param query * @param domainType used for mapping fields to properties. Can be {@literal null}. * @return String representation of query without faceting, pagination, projection... * @since 4.0 */ String getQueryString(SolrDataQuery query, @Nullable Class<?> domainType); /** * Register an additional converter for transforming object values to solr readable format * * @param converter */ void registerConverter(Converter<?, ?> converter); }