Method isPlaceNameUnique

src/main/java/mudmap2/backend/Layer.java:375–382

Check if place name is unique @param name place name to check @return true if name is unique on this layer

(final String name)

     * @return true if name is unique on this layer
     */
    public boolean isPlaceNameUnique(final String name){
        if(placeNameCacheNeedsUpdate) {
            updatePlaceNameCache();
        }

        final Integer num = placeNameCache.get(name);
        return num == null || num <= 1;
    }

    /**
     * Recreates place name chache