Sorry, I forgot to mention one step - after the M2Eclipse upgrade projects
would lose their Maven "nature". So after adding XML below to the pom, I had to
right-click the project and do "Configure > Convert to Maven Project". The
result was that Eclipse metadata files are now compatible with both new and old
versions of M2Eclipse. Here is a trimmed diff from upgrade commit to give you
an idea:
--- .classpath 2012-03-15 14:35:48 UTC (rev 40403)
+++ .classpath 2012-03-15 14:41:26 UTC (rev 40404)
@@ -1,8 +1,9 @@
<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" output="target/classes"
path="src/main/java"/>
+ <classpathentry kind="con"
path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER"/>
<classpathentry kind="con"
path="org.maven.ide.eclipse.MAVEN2_CLASSPATH_CONTAINER">
--- .project 2012-03-15 14:35:48 UTC (rev 40403)
+++ .project 2012-03-15 14:41:26 UTC (rev 40404)
@@ -29,8 +29,14 @@
<arguments>
</arguments>
</buildCommand>
+ <buildCommand>
+ <name>org.eclipse.m2e.core.maven2Builder</name>
+ <arguments>
+ </arguments>
+ </buildCommand>
</buildSpec>
<natures>
+ <nature>org.eclipse.m2e.core.maven2Nature</nature>
<nature>org.eclipse.jdt.core.javanature</nature>
Andrus
---------------
Andrus Adamchik
Apache Cayenne ORM: http://cayenne.apache.org/
Twitter: http://twitter.com/andrus_a
On Mar 25, 2012, at 3:29 PM, Andrus Adamchik wrote:
> I just had some problems with cgen declaration in the POM after upgrading to
> 1.0 version of M2Eclipse plugin. Turns out Cayenne projects now need the
> following declaration in the POM for the plugin to correctly work with cgen.
> This does not affect the command line build, only the behavior within
> Eclipse.
>
> See http://wiki.eclipse.org/M2E_plugin_execution_not_covered for more details.
>
> We may need to contribute an extension to M2Eclipse, so that it recognizes
> Cayenne out of the box without this hack in the future. For now add this to
> your poms.
>
> Andrus
>
>
> <build>
> <pluginManagement>
> <plugins>
> <plugin>
> <groupId>org.eclipse.m2e</groupId>
> <artifactId>lifecycle-mapping</artifactId>
> <version>1.0.0</version>
> <configuration>
> <lifecycleMappingMetadata>
> <pluginExecutions>
> <pluginExecution>
>
> <pluginExecutionFilter>
>
> <groupId>org.apache.cayenne.plugins</groupId>
>
> <artifactId>maven-cayenne-plugin</artifactId>
>
> <versionRange>[1.0,)</versionRange>
> <goals>
>
> <goal>cgen</goal>
> </goals>
>
> </pluginExecutionFilter>
> <action>
>
> <execute />
> </action>
> </pluginExecution>
> </pluginExecutions>
> </lifecycleMappingMetadata>
> </configuration>
> </plugin>
> </plugins>
> </pluginManagement>
> </build>
