/**
* Returns total number of transactions of the specified status associated with current thread.
*/
public int totalThreadTransactionsWithStatus(JtxStatus status) {
ArrayList<JtxTransaction> txlist = txStack.get();
if (txlist == null) {
return 0;
}
int count = 0;
for (JtxTransaction tx : txlist) {
if (tx.getStatus() == status) {
count++;
}
}
return count;
}
/**
* Returns <code>true</code> if scope is specified and it is different then of existing
* transaction.
*/
protected boolean isNewTxScope(JtxTransaction currentTx, Object destScope) {
if (ignoreScope == true) {
return true;
}
if (currentTx == null) {
return true;
}
if (destScope == null) {
return true;
}
if (currentTx.getScope() == null) {
return true;
}
return !destScope.equals(currentTx.getScope());
}
/**
* Propagation: MANDATORY
*
* <pre>{@code
* None -> Error
* T1 -> T1 (cont.)
* }</pre>
*/
@SuppressWarnings({"UnusedDeclaration"})
protected JtxTransaction propMandatory(
JtxTransaction currentTx, JtxTransactionMode mode, Object scope) {
if ((currentTx == null) || (currentTx.isNoTransaction() == true)) {
throw new JtxException("No existing TX found for TX marked with propagation 'mandatory'");
}
continueTx(currentTx, mode);
return currentTx;
}
/**
* Propagation: REQUIRED
*
* <pre>{@code
* None -> T2
* T1 -> T1 (cont.)
* }</pre>
*/
protected JtxTransaction propRequired(
JtxTransaction currentTx, JtxTransactionMode mode, Object scope) {
if ((currentTx == null) || (currentTx.isNoTransaction() == true)) {
currentTx = createNewTransaction(mode, scope, true);
} else {
continueTx(currentTx, mode);
}
return currentTx;
}
/**
* Propagation: NEVER
*
* <pre>{@code
* None -> None
* T1 -> Error
* }</pre>
*/
protected JtxTransaction propNever(
JtxTransaction currentTx, JtxTransactionMode mode, Object scope) {
if ((currentTx != null) && (currentTx.isNoTransaction() == false)) {
throw new JtxException("Existing TX found for TX marked with propagation 'never'");
}
if (currentTx == null) {
currentTx = createNewTransaction(mode, scope, false);
}
return currentTx;
}
/**
* Propagation: NOT_SUPPORTED
*
* <pre>{@code
* None -> None
* T1 -> None
* }</pre>
*/
protected JtxTransaction propNotSupported(
JtxTransaction currentTx, JtxTransactionMode mode, Object scope) {
if (currentTx == null) {
return createNewTransaction(mode, scope, false);
}
if (currentTx.isNoTransaction() == true) {
return currentTx;
}
return createNewTransaction(mode, scope, false);
}
/**
* Propagation: SUPPORTS
*
* <pre>{@code
* None -> None
* T1 -> T1 (cont.)
* }</pre>
*/
protected JtxTransaction propSupports(
JtxTransaction currentTx, JtxTransactionMode mode, Object scope) {
if ((currentTx != null) && (currentTx.isNoTransaction() != true)) {
continueTx(currentTx, mode);
}
if (currentTx == null) {
currentTx = createNewTransaction(mode, scope, false);
}
return currentTx;
}
/**
* Check if propagation of a transaction is possible, due to source and destination transaction
* modes.
*
* @see #setValidateExistingTransaction(boolean)
*/
protected void continueTx(JtxTransaction sourceTx, JtxTransactionMode destMode) {
if (validateExistingTransaction == false) {
return;
}
JtxTransactionMode sourceMode = sourceTx.getTransactionMode();
JtxIsolationLevel destIsolationLevel = destMode.getIsolationLevel();
if (destIsolationLevel != ISOLATION_DEFAULT) {
JtxIsolationLevel currentIsolationLevel = sourceMode.getIsolationLevel();
if (currentIsolationLevel != destIsolationLevel) {
throw new JtxException(
"Participating TX specifies isolation level: "
+ destIsolationLevel
+ " which is incompatible with existing TX: "
+ currentIsolationLevel);
}
}
if ((destMode.isReadOnly() == false) && (sourceMode.isReadOnly())) {
throw new JtxException("Participating TX is not marked as read-only, but existing TX is");
}
}
