Monday, February 28, 2011

Re: GWT with JPA

Hm, I don't use maven in my project, I saw the xml-file you posted in
some sample applications, but I don't have to use maven to solve my
@Entity annotation problem? How would you include the
javax.persistence in the class-path (you mean to include this in
the .gwt.xml file?), because at the server I already have it included,
otherwise I could not compile

Thanks for your help

On 28 Feb., 16:41, Juan Pablo Gardella <gardellajuanpa...@gmail.com>
wrote:
> I don't do anything in my .gwt.xml for compiling my project. Are you compile
> with gwt-maven-plugin?
>
> Here is my pom.xml and my .gwt-xml.
>
> Juan
>
> .gwt.xml:
> <module rename-to='...'>
> <!-- Inherit the core Web Toolkit stuff. -->
> <inherits name='com.google.gwt.user.User' />
>
> <!-- Inherit the default GWT style sheet. You can change -->
> <!-- the theme of your GWT application by uncommenting -->
> <!-- any one of the following lines. -->
> <inherits name='com.google.gwt.user.theme.standard.Standard' />
> <!-- <inherits name='com.google.gwt.user.theme.chrome.Chrome'/> -->
> <!-- <inherits name='com.google.gwt.user.theme.dark.Dark'/> -->
>
> <!-- Other module inherits -->
> <inherits name="com.google.gwt.activity.Activity" />
> <inherits name="com.google.gwt.place.Place" />
>  <!-- Specify the app entry point class. -->
> <entry-point class='...' />
>
> <!-- Specify the paths for translatable code -->
> <source path='client' />
> <source path='shared' />
>
> </module>
>
> pom.xml:
> <?xml version="1.0" encoding="UTF-8"?>
> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/maven-v4_0_0.xsd">
>
> <!-- POM file generated with GWT webAppCreator -->
> <modelVersion>4.0.0</modelVersion>
> <groupId></groupId>
> <artifactId></artifactId>
> <packaging>war</packaging>
> <version></version>
>
> <properties>
> <!-- Convenience property to set the GWT version -->
> <gwtVersion>2.1.1</gwtVersion>
> <hibernate.version>3.6.1.Final</hibernate.version>
> <!-- GWT needs at least java 1.5 -->
> <maven.compiler.source>1.6</maven.compiler.source>
> <maven.compiler.target>1.6</maven.compiler.target>
> <webappDirectory>${project.build.directory}/${project.build.finalName}</webappDirectory>
> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
> </properties>
>
> <dependencies>
> <dependency>
> <groupId>com.google.gwt</groupId>
> <artifactId>gwt-servlet</artifactId>
> <version>${gwtVersion}</version>
> <scope>runtime</scope>
> </dependency>
> <dependency>
> <groupId>com.google.gwt</groupId>
> <artifactId>gwt-user</artifactId>
> <version>${gwtVersion}</version>
> <scope>provided</scope>
> </dependency>
> <!-- Persistencia -->
> <dependency>
> <groupId>org.hibernate.javax.persistence</groupId>
> <artifactId>hibernate-jpa-2.0-api</artifactId>
> <version>1.0.0.Final</version>
> </dependency>
> <dependency>
> <groupId>org.hibernate</groupId>
> <artifactId>hibernate-core</artifactId>
> <version>${hibernate.version}</version>
> <exclusions>
> <exclusion>
> <groupId>cglib</groupId>
> <artifactId>cglib</artifactId>
> </exclusion>
> <exclusion>
> <groupId>net.sf.ehcache</groupId>
> <artifactId>ehcache</artifactId>
> </exclusion>
> <exclusion>
> <groupId>asm</groupId>
> <artifactId>asm</artifactId>
> </exclusion>
> <exclusion>
> <groupId>asm</groupId>
> <artifactId>asm-attrs</artifactId>
> </exclusion>
> <exclusion>
> <groupId>javax.transaction</groupId>
> <artifactId>jta</artifactId>
> </exclusion>
> </exclusions>
> </dependency>
> <dependency>
> <groupId>org.hibernate</groupId>
> <artifactId>hibernate-entitymanager</artifactId>
> <version>${hibernate.version}</version>
> <exclusions>
> <exclusion>
> <groupId>cglib</groupId>
> <artifactId>cglib</artifactId>
> </exclusion>
> <exclusion>
> <groupId>dom4j</groupId>
> <artifactId>dom4j</artifactId>
> </exclusion>
> </exclusions>
> </dependency>
>
> <dependency>
> <groupId>javax.transaction</groupId>
> <artifactId>jta</artifactId>
> <version>1.1</version>
> </dependency>
>
> <!-- Test -->
> <dependency>
> <groupId>junit</groupId>
> <artifactId>junit</artifactId>
> <version>4.8.2</version>
> <scope>test</scope>
> </dependency>
>
>  </dependencies>
>
> <build>
>
> <!-- Generate compiled stuff in the folder used for developing mode -->
> <outputDirectory>${webappDirectory}/WEB-INF/classes</outputDirectory>
>
> <plugins>
>
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-compiler-plugin</artifactId>
> <version>2.3.2</version>
> <configuration>
> <source>1.6</source>
> <target>1.6</target>
> </configuration>
> </plugin>
>
> <!-- GWT Maven Plugin -->
> <plugin>
> <groupId>org.codehaus.mojo</groupId>
> <artifactId>gwt-maven-plugin</artifactId>
> <version>2.1.0-1</version>
> <executions>
> <execution>
> <goals>
> <goal>compile</goal>
> <goal>test</goal>
> <goal>i18n</goal>
> <!-- goal>generateAsync</goal -->
> </goals>
> </execution>
> </executions>
> <!-- Plugin configuration. There are many available options, see
> gwt-maven-plugin
> documentation at codehaus.org -->
> <configuration>
> <runTarget>embalajemadera.html</runTarget>
> <hostedWebapp>${webappDirectory}</hostedWebapp>
> <i18nMessagesBundle>${project.groupId}.client.Messages</i18nMessagesBundle>
> <!-- Genera las interfaces Async -->
> <!-- servicePattern>com/foo/client/services/*.java</servicePattern -->
> </configuration>
> </plugin>
>
> <!-- Copy static web files before executing gwt:run -->
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-war-plugin</artifactId>
> <version>2.1.1</version>
> <executions>
> <execution>
> <phase>compile</phase>
> <goals>
> <goal>exploded</goal>
> </goals>
> </execution>
> </executions>
> <configuration>
> <webappDirectory>${webappDirectory}</webappDirectory>
> </configuration>
> </plugin>
>
> <!-- IDE -->
> <plugin>
> <groupId>org.apache.maven.plugins</groupId>
> <artifactId>maven-eclipse-plugin</artifactId>
> <version>2.7</version>  <!-- Note 2.8 does not work with AspectJ aspect path
> -->
> <configuration>
> <downloadSources>true</downloadSources>
> <downloadJavadocs>false</downloadJavadocs>
> <wtpversion>2.0</wtpversion>
> <additionalBuildcommands>
> <buildCommand>
> <name>org.eclipse.jdt.core.javabuilder</name>
> <arguments>
> </arguments>
> </buildCommand>
> <buildCommand>
> <name>com.google.gdt.eclipse.core.webAppProjectValidator</name>
> <arguments>
> </arguments>
> </buildCommand>
> <buildCommand>
> <name>com.google.gwt.eclipse.core.gwtProjectValidator</name>
> <arguments>
> </arguments>
> </buildCommand>
> </additionalBuildcommands>
> <additionalProjectnatures>
>
> <projectnature>com.google.gwt.eclipse.core.gwtNature</projectnature>
> </additionalProjectnatures>
> </configuration>
> </plugin>
>
>   </plugins>
>   </build>
>
> <repositories>
> <repository>
> <snapshots>
> <enabled>false</enabled>
> </snapshots>
> <id>central (jboss)</id>
> <name>Maven Repository Switchboard</name>
> <url>http://repo2.maven.org/maven2</url>
> </repository>
> <repository>
> <snapshots>
> <enabled>false</enabled>
> </snapshots>
> <id>Public Repository Group (jboss)</id>
> <url>http://repository.jboss.org/nexus/content/groups/public</url>
> </repository>
> </repositories>
>
> </project>
>
> 2011/2/28 FritzTheCat <wg27_2...@hotmail.com>
>
> > Thanks Juan for your quick reply, I think I did not explain my problem
> > enough detailled so I try it again: My project compiles right so I
> > don't think it is a class-path problem in the common way: Refering to
>
> >http://code.google.com/intl/de-DE/webtoolkit/doc/latest/DevGuideServe...
> > I have to assure the following:
> >  # The class is annotated with a JPA javax.persistence.Entity
> > annotation. -> I did this in my Entity object
>
> > for example:
> > @Entity
> > public class Member implements Serializable{
>
> >        private static final long serialVersionUID = -8354006649751924339L;
>
> >        public Long id;
> > }
>
> > # The fully-qualified class name is listed as one of the values of the
> > rpc.enhancedClasses configuration property in a .gwt.xml module file
> > that is part of the application. -> I think this is my problem. I
> > don't know how to put the class into my .gwt.xml file and I cannot
> > find any description how to do this, I only found some comments, that
> > the annotation can not be read by the client gwt code (which is clear
> > to me), but how can I put them into the gwt.xml file?
>
> > Thanks for your help
>
> > On 28 Feb., 16:18, Juan Pablo Gardella <gardellajuanpa...@gmail.com>
> > wrote:
> > > I think you need the jpa sources in your classpath.
>
> > > Juan
>
> > > 2011/2/28 FritzTheCat <wg27_2...@hotmail.com>
>
> > > > Hi people,
>
> > > > i try to use gwt 2.2 with JPA. For this I use the @Entity annotation
> > > > in my shared folder and i get the error message:
> > > > The import javax.persistence cannot be resolved, Entity cannot be
> > > > resolved to a type. For me it is clear that something is missing in
> > > > the .gwt.xml file and I found the rpc enhanced feature but I don't
> > > > know how to include those classes. I used the following "<define-
> > > > configuration-property name="rpc.enhancedClasses" is-multi-
> > > > valued="true"/>" in my .gwt.xml file but I also have to define my
> > > > @Entity annotated classes. So how must the be defined in the .gwt.xml
> > > > file? Any help is appreciated,
>
> > > > thank you and nice greetings
>
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