This is the solution I have to get seam-gen to work on existing entities:
1) Either append the following target to the seam-gen/build.xml or just modify
the generate-entities target:
| <target name="generate-domain" depends="validate-project"
| description="Generate based on existing domain entities">
|
| <taskdef name="hibernate"
| classname="org.hibernate.tool.ant.HibernateToolTask">
| <classpath>
| <fileset dir="lib">
| <include name="*.jar" />
| </fileset>
| <fileset dir="../hibernate/lib">
| <include name="*.jar" />
| </fileset>
| <pathelement path="${driver.jar}" />
| <pathelement path="../jboss-seam-gen.jar" />
| </classpath>
| </taskdef>
|
| <hibernate templatepath=".">
| <jpaconfiguration persistenceunit="testproject" />
| <classpath>
| <pathelement path="${project.home}/dist" />
| </classpath>
|
| <property key="hibernatetool.util.toolclass"
| value="org.jboss.seam.tool.Util" />
|
| <hbmtemplate filepattern="{class-name}List.xhtml"
| template="view/list.xhtml.ftl"
| destdir="${project.home}/view" />
| <hbmtemplate filepattern="{class-name}.xhtml"
| template="view/view.xhtml.ftl"
| destdir="${project.home}/view" />
| <hbmtemplate filepattern="{class-name}.page.xml"
| template="view/view.page.xml.ftl"
| destdir="${project.home}/view" />
| <hbmtemplate filepattern="{class-name}Edit.xhtml"
| template="view/edit.xhtml.ftl"
| destdir="${project.home}/view" />
| <hbmtemplate filepattern="{class-name}Edit.page.xml"
| template="view/edit.page.xml.ftl"
| destdir="${project.home}/view" />
| <hbmtemplate filepattern="{package-name}/{class-name}List.java"
| template="src/EntityList.java.ftl"
| destdir="${project.home}/src" />
| <hbmtemplate filepattern="{class-name}List.page.xml"
| template="view/list.page.xml.ftl"
| destdir="${project.home}/view" />
| <hbmtemplate filepattern="{package-name}/{class-name}Home.java"
| template="src/EntityHome.java.ftl"
| destdir="${project.home}/src" />
| <hbmtemplate filepattern="menu.xhtml"
| template="view/layout/menu.xhtml.ftl"
| destdir="${project.home}/view/layout" />
| </hibernate>
|
| <taskdef name="javaformatter"
| classname="org.hibernate.tool.ant.JavaFormatterTask">
| <classpath>
| <fileset dir="lib">
| <include name="*.jar" />
| </fileset>
| </classpath>
| </taskdef>
|
| <javaformatter>
| <fileset dir="${project.home}/src">
| <include name="**/*.java" />
| </fileset>
| </javaformatter>
|
| <echo
| message="Type 'seam restart' and go to
http://localhost:8080/${project.name}"; />
|
| </target>
|
2) Run 'seam setup' and 'seam new-project' to generate the project skeleton
3) create a 'dist' directory under the newly created project directory
4) copy all your compiled classes for the domain model into the 'dist'
directory
5) copy all your src code for the domain model into the 'src' directory under
the newly created project directory
6) create a META-INF directory inside 'dist' directory
7) copy the persistence-dev.xml from the resources directory in the newly
created project to the dist/META-INF directory and rename it to persistence.xml
8) Now change the persistenceunit under <jpaconfiguration .../> in the
seam-gen/build.xml to match the persistentunit in the persistence.xml
9) download the put the javassist.jar into your [Seam installation
dir]/hibernate/lib directory
10) run seam generate-domain (or seam generate-entities if you modify the ant
target)
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