protected void onConnectAllSequences() {
connectedSequences = new Vector();
boolean shouldUseTransaction = false;
boolean shouldUsePreallocation = false;
boolean shouldAcquireValueAfterInsert = false;
Iterator descriptors = getOwnerSession().getDescriptors().values().iterator();
while (descriptors.hasNext()) {
ClassDescriptor descriptor = (ClassDescriptor) descriptors.next();
// Find root sequence, because inheritance needs to be resolved here.
// TODO: The way we initialize sequencing needs to be in line with descriptor init.
ClassDescriptor parentDescriptor = descriptor;
while (!parentDescriptor.usesSequenceNumbers() && parentDescriptor.isChildDescriptor()) {
ClassDescriptor newDescriptor =
getOwnerSession()
.getDescriptor(parentDescriptor.getInheritancePolicy().getParentClass());
// Avoid issue with error cases of self parent, or null parent.
if ((newDescriptor == null) || (newDescriptor == parentDescriptor)) {
break;
}
parentDescriptor = newDescriptor;
}
if (!parentDescriptor.usesSequenceNumbers()) {
continue;
}
String seqName = parentDescriptor.getSequenceNumberName();
Sequence sequence = getSequence(seqName);
if (sequence == null) {
sequence = new DefaultSequence(seqName);
getOwnerSession().getDatasourcePlatform().addSequence(sequence);
}
// PERF: Initialize the sequence, this avoid having to look it up every time.
descriptor.setSequence(sequence);
if (connectedSequences.contains(sequence)) {
continue;
}
try {
if (sequence instanceof DefaultSequence
&& !connectedSequences.contains(getDefaultSequence())) {
getDefaultSequence().onConnect(getOwnerSession().getDatasourcePlatform());
connectedSequences.add(0, getDefaultSequence());
shouldUseTransaction |= getDefaultSequence().shouldUseTransaction();
shouldUsePreallocation |= getDefaultSequence().shouldUsePreallocation();
shouldAcquireValueAfterInsert |= getDefaultSequence().shouldAcquireValueAfterInsert();
}
sequence.onConnect(getOwnerSession().getDatasourcePlatform());
connectedSequences.addElement(sequence);
shouldUseTransaction |= sequence.shouldUseTransaction();
shouldUsePreallocation |= sequence.shouldUsePreallocation();
shouldAcquireValueAfterInsert |= sequence.shouldAcquireValueAfterInsert();
} catch (RuntimeException ex) {
// defaultSequence has to disconnect the last
for (int i = connectedSequences.size() - 1; i >= 0; i--) {
try {
Sequence sequenceToDisconnect = (Sequence) connectedSequences.elementAt(i);
sequenceToDisconnect.onDisconnect(getOwnerSession().getDatasourcePlatform());
} catch (RuntimeException ex2) {
// ignore
}
}
connectedSequences = null;
throw ex;
}
}
if (shouldAcquireValueAfterInsert && !shouldUsePreallocation) {
whenShouldAcquireValueForAll = AFTER_INSERT;
} else if (!shouldAcquireValueAfterInsert && shouldUsePreallocation) {
whenShouldAcquireValueForAll = BEFORE_INSERT;
}
atLeastOneSequenceShouldUseTransaction = shouldUseTransaction;
atLeastOneSequenceShouldUsePreallocation = shouldUsePreallocation;
}
