TXEntryState getTXEntryState(Object key) {
    return entryMods.get(key);
  }
Returns the total number of modifications made by this transaction to this region's entry
count. The result will have a +1 for every create and a -1 for every destroy.
geode-core/src/main/java/org/apache/geode/internal/cache/TXRegionState.java