Bug 212408 [Markers] Markers updating during inconsistent state
We are updating during builds. As a result we get a lot of half constructed markers. We should 1) Cache default state 2) delay updates while a build is going on
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/provisional/views/markers/CachedMarkerBuilder.java
return;
				}
				
				if (progressService == null)
					markerProcessJob.schedule(TIME_OUT);
				else
					progressService.schedule(markerProcessJob, TIME_OUT);
			}
		};
	}
	/**
	 * Get the fields that this content generator is displaying.
	 * 
	 * @return {@link MarkerField}[]
	 */
	MarkerField[] getVisibleFields() {
		return visibleFields;
	}
	/**
	 * Return whether or not the receiver has markers without scheduling
	 * anything if it doesn't.
	 * 
	 * @return boolean <code>true</code> if the markers have not been
	 *         calculated.
	 */
	boolean hasNoMarkers() {
		return currentMap == null;
	}
	/**
	 * Return whether or not the receiver is building.