/**
* Simply check if there is an ongoing tx.
*
* <ul>
* <li>If there is one, this is a no-op and just passes the call up the chain.
* <li>If there isn't one and there is a batch in progress, resume the batch's tx, pass up, and
* finally suspend the batch's tx.
* <li>If there is no batch in progress, just pass the call up the chain.
* </ul>
*/
@Override
protected Object handleDefault(InvocationContext ctx, VisitableCommand command) throws Throwable {
Transaction tx;
if (!ctx.isOriginLocal()) return invokeNextInterceptor(ctx, command);
// if in a batch, attach tx
if (transactionManager.getTransaction() == null
&& (tx = batchContainer.getBatchTransaction()) != null) {
try {
transactionManager.resume(tx);
// If there's no ongoing tx then BatchingInterceptor creates one and then invokes next
// interceptor,
// so that all interceptors in the stack will be executed in a transactional context.
// This is where a new context (TxInvocationContext) is created, as the existing context is
// not transactional: NonTxInvocationContext.
InvocationContext txContext = icc.createInvocationContext(true, -1);
txContext.setFlags(ctx.getFlags());
return invokeNextInterceptor(txContext, command);
} finally {
if (transactionManager.getTransaction() != null
&& batchContainer.isSuspendTxAfterInvocation()) transactionManager.suspend();
}
} else {
return invokeNextInterceptor(ctx, command);
}
}
private Transaction getOngoingTransaction() {
try {
Transaction transaction = null;
if (transactionManager != null) {
transaction = transactionManager.getTransaction();
if (transaction == null && config.isInvocationBatchingEnabled()) {
transaction = batchContainer.getBatchTransaction();
}
}
return transaction;
} catch (SystemException e) {
throw new CacheException("Unable to get transaction", e);
}
}