How to attach a maven plugin to a phase by default?

I have a maven plugin that should run in the compile phase, so in the project that consumes my plugin, I have to do something like this:

<executions>
 <execution>
  <phase>compile</phase>
  <goals>
   <goal>my-goal</goal>
  </goals>
 </execution>
</executions>

What I need is to by default attach my-goal to the compile phase if the user has included my plugin already (ideally the above part wouldn't be necessary, just the plugin declaration).

Is this possible?