public void updateMapOfEmptyRegions(
      final @NotNull Map<String, Integer> regionsWithEmptyDataPolicy,
      final @NotNull String regionName,
      final @Nullable DataPolicy regionDataPolicy) {
    if (regionDataPolicy == DataPolicy.EMPTY) {
      if (!regionsWithEmptyDataPolicy.containsKey(regionName)) {
        regionsWithEmptyDataPolicy.put(regionName, 0);
      }
    }
  }
Store region and delta relation

@param regionDataPolicy (0==empty)
@since GemFire 6.1
geode-core/src/main/java/org/apache/geode/internal/cache/tier/sockets/CacheClientNotifier.java