@Override
  public void destroyExistingEntry(EntryEventImpl event, boolean cacheWrite,
      Object expectedOldValue) throws EntryNotFoundException {
    try {
      operationCount++;
      getRealDeal(event.getKeyInfo(), event.getRegion()).destroyExistingEntry(event, cacheWrite,
          expectedOldValue);
      trackBucketForTx(event.getKeyInfo());
    } catch (TransactionDataRebalancedException transactionDataRebalancedException) {
      throw handleTransactionDataRebalancedException(event.getKeyInfo(),
          transactionDataRebalancedException);
    } catch (PrimaryBucketException primaryBucketException) {
      throw getTransactionException(event.getKeyInfo(), primaryBucketException);
    }
  }
This returns either the TXState for the current transaction or a proxy for the state if it is
held in another member. If no state currently exists, one is created

@param key the key of the entry that is currently being modified
@param r the region that is currently being modified
@return the state or a proxy for the state
geode-core/src/main/java/org/apache/geode/internal/cache/TXStateProxyImpl.java