public Object notSupported(final TransactionCallback callback) throws Throwable {
final Transaction tx = suspend();
try {
return callback.execute(this);
} finally {
if (tx != null) {
resume(tx);
}
}
}
public Object required(final TransactionCallback callback) throws Throwable {
final boolean began = begin();
try {
return callback.execute(this);
} finally {
if (began) {
end();
}
}
}
public Object requiresNew(final TransactionCallback callback) throws Throwable {
final Transaction tx = suspend();
try {
begin();
try {
return callback.execute(this);
} finally {
end();
}
} finally {
if (tx != null) {
resume(tx);
}
}
}
public Object mandatory(final TransactionCallback callback) throws Throwable {
if (!hasTransaction()) {
throw new SIllegalStateException("ESSR0311", null);
}
return callback.execute(this);
}