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Subject: Re: cgen and newer M2Eclipse plugin
From: Andrus Adamchik <andrus@objectstyle.org>
In-Reply-To: <A1704D38-7690-44C6-B8CF-C918AEADFB01@objectstyle.org>
Date: Sun, 25 Mar 2012 16:29:14 +0300
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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=3D"1.0" encoding=3D"UTF-8"?>
<classpath>
	<classpathentry kind=3D"src" output=3D"target/classes" =
path=3D"src/main/java"/>
+	<classpathentry kind=3D"con" =
path=3D"org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER"/>
	<classpathentry kind=3D"con" =
path=3D"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.=20
>=20
> See http://wiki.eclipse.org/M2E_plugin_execution_not_covered for more =
details.
>=20
> 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.
>=20
> Andrus
>=20
>=20
> <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>