querydsl

问题 I need to select limit record by querydsl , my query is like: select *from <table> where <column_id> = 5 limit 2 How can I do a query in my repository interface method to the given above query? 回答1: Use QueryDslPredicateExecutor.findAll(Predicate predicate, Pageable pageable) and then get the actual results back using PageRequest.of(0, limit) . 来源： https://stackoverflow.com/questions/37393485/querydsl-limit-record-example

问题 I have this pom.xml: <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.5.RELEASE</version> </parent> <dependencies> <dependency> <groupId>com.mysema.querydsl</groupId> <artifactId>querydsl-jpa</artifactId> </dependency> <dependency> <groupId>com.mysema.querydsl</groupId> <artifactId>querydsl-apt</artifactId> <scope>provided</scope> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot

问题 I have a keyword/key-phrase field I tokenize using standard analyser. I want this field to match if if there is a search phrase that has all tokens of this field in it. For example if the field value is "veni, vidi, vici" and the search phrase is "Ceaser veni,vidi,vici" I want this search phrase to match but search phrase "veni, vidi" not match. I also need "vidi, veni, vici" (weird!) to match. So the positions and ordering of the terms is not really important. A phrase match would not quite

问题 I have some tables and I want to get result using queryDSL join, but haven't found any examples on multiple joins using queryDSL. I have these tables: Account table: accountId (PK) | email | password account_profile table: accountId (PK)(fk to account) | nickname Community table: articleId (PK) | accountId (fk to account) | title | content Now I want below JPQL to be queryDSL code select r from community r join r.account.profile a where a.nickname = :nickname I have entity metamodels -

问题 I am trying to integrate an existing project in maven with query dsl I have added the dependencies as below ` <dependency> <groupId>com.mysema.querydsl</groupId> <artifactId>querydsl-apt</artifactId> <version>2.5.0</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.mysema.querydsl</groupId> <artifactId>querydsl-jpa</artifactId> <version>2.5.0</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.6.1</version>

问题 While looking for java libraries to build queries in a database agnostic way I came across many including iciql, querydsl, jooq, joist, hibernate etc. I wanted something that does not require configuration files and can work with dynamic schemas. For my application, I come to know about the database and the schema at runtime so I won't have any configuration files or domain classes for the schema. This seems to be one of the core goals of querydsl but going through the documentation for

问题 I have to search a number-field with wildcards. The corresponding JQPL query would be like this: SELECT e From Entity e where e.personNumber LIKE :numberPattern numberPattern is a String like this: "1??2" and e.personNumber is a Number on the Database (H2). If i run this with JQPL it's no Problem at all but I can't put it into a queryDSL query. when I try to andBuilder.and(entity.personNumber.stringValue().like(numberPattern) I get a org.apache.openjpa.persistence.ArgumentException: "str ("

问题 I would like to make a query with UNION and limit. I can explain that query on mysql. (SELECT * FROM table WHERE type='text' LIMIT 3 ) UNION (SELECT * FROM table WHERE type='word' LIMIT 3 ) I tried it on Elasticsearch { "query":{ "dis_max":{ "queries":[ { "from":0, "size":3, "query":{ "match":{ "type":"text" } } }, { "from":0, "size":3, "query":{ "match":{ "type":"word" } } } ] } } } http://localhost:9200/test/table/_search?pretty&source={%22query%22:{%22dis_max%22:{%22queries%22:[{%22query

问题 i have following reQuirement Query: "/article? category =kitchen& category =sports" This Query is working without custom bindings. It will give me all Kitchen and sports articles as Response. It is doing an OR-Operation somehow. But i need to customize the binding because i need to ingore the case. Now i am using this customize binding: @Repository public interface ArticleRepository extends JpaRepository<Article, Long>, QueryDslPredicateExecutor<QArticle>, QuerydslBinderCustomizer<QArticle> {

问题 i have following reQuirement Query: "/article? category =kitchen& category =sports" This Query is working without custom bindings. It will give me all Kitchen and sports articles as Response. It is doing an OR-Operation somehow. But i need to customize the binding because i need to ingore the case. Now i am using this customize binding: @Repository public interface ArticleRepository extends JpaRepository<Article, Long>, QueryDslPredicateExecutor<QArticle>, QuerydslBinderCustomizer<QArticle> {