cgen and newer M2Eclipse plugin

[Andrus Adamchik]

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>