public void getKeysWithList(List keyList, boolean allowTombstones, SetCollector collector)
      throws IOException {
    _getKeysWithInterest(InterestType.KEY, keyList, allowTombstones, collector);
  }
finds all the keys in the given list that are present in the region

@param keyList the key list
@param allowTombstones whether to return destroyed entries
@param collector object that will receive the keys as they arrive
geode-core/src/main/java/org/apache/geode/internal/cache/PartitionedRegion.java