querydsl

问题 Im currently using the maven apt plugin to generate the EntityPath base classes. <plugin> <groupId>com.mysema.maven</groupId> <artifactId>maven-apt-plugin</artifactId> <version>1.0.4</version> <executions> <execution> <goals> <goal>process</goal> </goals> <phase>generate-sources</phase> <configuration> <outputDirectory>target/generated-sources/java</outputDirectory> <processor>com.mysema.query.apt.jpa.JPAAnnotationProcessor</processor> </configuration> </execution> </executions> <dependencies

问题 How can I write a query using window functions and selecting all fields in QueryDSL? In the docs there is an example like this: query.from(employee) .list(SQLExpressions.rowNumber() .over() .partitionBy(employee.name) .orderBy(employee.id)); but I need to generate a query like: SELECT * FROM (SELECT employee.name, employee.id, row_number() over(partition BY employee.name ORDER BY employee.id) FROM employee) AS sub WHERE row_number = 1 And is it possible to do it with JPAQuery? 回答1: JPAQuery

问题 I have a Spring-boot 1.4 project in IntelliJ 15 using gradle 2.3 and QueryDSL 4.1.3 that won't build because my entities are not being built into Q classes by Querydsl. I have the following: buildscript { ext { springBootVersion = '1.4.0.BUILD-SNAPSHOT' querydslVersion = '4.1.3' } repositories { mavenCentral() maven { url "https://repo.spring.io/snapshot" } maven { url "https://repo.spring.io/milestone" } maven {url "https://plugins.gradle.org/m2/"} } dependencies { classpath("org

问题 I am trying to get my Q Classes for queryDSL 1.4.1 recongised in a Spring-Boot 1.5.2 project. The IDE is Intellij Ultimate. build.gradle buildscript { ext { springBootVersion = '1.5.2.RELEASE' } repositories { mavenCentral() } dependencies { classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") } } plugins { id 'net.ltgt.apt' version '0.8' id 'java' } apply plugin: 'java' apply plugin: 'eclipse' apply plugin: 'org.springframework.boot' apply plugin: 'idea'

问题 I don't see query dsl classes generated in eclipse added below dependency and plugin in the pom.xml. Can some please review below change required for query-dsl integration in spring boot? <dependency> <groupId>com.mysema.querydsl</groupId> <artifactId>querydsl-apt</artifactId> <version>${querydsl.version}</version> <scope>provided</scope> </dependency> <dependency> <groupId>com.mysema.querydsl</groupId> <artifactId>querydsl-jpa</artifactId> <version>${querydsl.version}</version> </dependency>

问题 I'm using OpenJPA with QueryDSL, I try to avoid manipulating Tuple objects by using the bean projections features of QueryDSL. I have for example these two Entity, with a @ManyToOne relation. @Entity public class Folder { private Long id; private String name; private String path; @ManyToOne @JoinColumn(name = "FK_FILE_ID") private File file; } @Entity public class File { private Long id; private String fileName; } When I'm executing this query : List<Folder> listFolders = query.from(folder)

问题 I'm using OpenJPA with QueryDSL, I try to avoid manipulating Tuple objects by using the bean projections features of QueryDSL. I have for example these two Entity, with a @ManyToOne relation. @Entity public class Folder { private Long id; private String name; private String path; @ManyToOne @JoinColumn(name = "FK_FILE_ID") private File file; } @Entity public class File { private Long id; private String fileName; } When I'm executing this query : List<Folder> listFolders = query.from(folder)

问题 I am a newbie in querydsl. I saw two types of querydsl implementations. Is there any differnece? I already developed with com.mysema.query implementation. But I think I went wrong way. Please explain about this. 回答1: com.querydsl is the root package for Querydsl 4.* and com.mysema.query is the root package for Querydsl 3.*. The background is that Querydsl was initially owned by Mysema, but is now owned and mantained by the Querydsl team. 来源： https://stackoverflow.com/questions/32469814/the

问题 This is basically the opposite of this: How to do a paged QueryDSL query with Spring JPA? This is for a custom query for which i can't use any of the findAll() methods. EDIT: Posted the wrong link. Now corrected. 回答1: You can do somethings like this: But make sure to trim the o.getProperty() so you only pass the property and not "alias."+property if (pageable != null) { query.offset(pageable.getOffset()); query.limit(pageable.getPageSize()); for (Sort.Order o : pageable.getSort()) {

问题 This is basically the opposite of this: How to do a paged QueryDSL query with Spring JPA? This is for a custom query for which i can't use any of the findAll() methods. EDIT: Posted the wrong link. Now corrected. 回答1: You can do somethings like this: But make sure to trim the o.getProperty() so you only pass the property and not "alias."+property if (pageable != null) { query.offset(pageable.getOffset()); query.limit(pageable.getPageSize()); for (Sort.Order o : pageable.getSort()) {