i have spring 4.1.0 back-end application domain classes annotated in jpa (w/hibernate 4.3.5 persistence provider) using maven build tool. want add web front-end component app , have decided use grails 3.x web framework. want re-use existing jpa annotated domain classes grails , use generate-all create controllers , views each domain model. first milestone goal basic crud functionality on old domain models web app.
following information found in grails documentation , in older blog posts related posts, created new grails project , packaged existing project jar , installed (i ran mvn install -dskiptests exact) , added build.gradle (actually want have 1 project in end, thought i'd try way first because don't want wrestle having maven , gradle in same project yet):
repositories { ... mavenlocal() ... } dependencies { ... compile "com.my-company:my-spring-app:1.0.0.ci-snapshot" ... } no warnings or errors intellij idea 14 far. created grails-app/conf/hibernate/hibernate.cfg.xml file , tried putting 1 of old jpa annotated entities in now:
<?xml version='1.0' encoding='utf-8'?> <!doctype hibernate-configuration system "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> <hibernate-configuration> <session-factory> <mapping package="com.my-company.my-spring-app.domain" /> <mapping class="com.my-company.my-spring-app.domain.city" /> </session-factory> </hibernate-configuration> no complaints ide here either. city.java entity class looks like:
package com.my-company.my-spring-app.domain; import javax.persistence.*; import java.util.date; import java.util.hashset; import java.util.set; /** * city generated hbm2java */ @entity @table(name = "city", schema = "public", uniqueconstraints = @uniqueconstraint(columnnames = "name")) public class city implements java.io.serializable { private static final long serialversionuid = 4674557242772722625l; @id @sequencegenerator(name = "city_gen", schema = "public", sequencename = "city_id_seq") @generatedvalue(strategy = generationtype.sequence, generator = "city_gen") @column(name = "id", unique = true, nullable = false) private long id; @manytoone(fetch = fetchtype.lazy) @joincolumn(name = "countryid", nullable = false) // @joincolumn(name = "country_id", nullable = false) private country country; @column(name = "name", unique = true, length = 200) private string name; ... } then jumped grails console , tried generate controller , views city domain class:
grails generate-all com.my-company.my-spring-app.domain.city but domain class not found error:
| error domain class not found name com.my-company.my-spring-app.domain.city i created grails 2.5.0 app, put my-spring-app.jar in lib/ , tried again see if issue 'bleeding edge' grails 3.0.1 got same result.
does know what's going on here? how can re-use old jpa domain classes grails 3.x can stay dry 1 set of domain entities?
i resolved similar issue putting hibernate.cfg.xml in grails-app/conf (not inside hibernate subdirectory) described in mapping-with-hibernate-annotations-in-grails-3-0-1.
