public void setPushMeasure(Object key, PushMeasure<?> measure) {
		if (measure == null) {
			removePushMeasure(key);
		} else {
			pushers.put(key, measure);
		}
	}
public void setPushMeasure ( Object key , PushMeasure < ? > measure ) { if ( measure == null ) { removePushMeasure ( key ) ; } else { pushers . put ( key , measure ) ; } }
@param key
the key of the {@link Measure}
@param measure
the {@link PushMeasure} to register