private long createPropertyChain(Map<String, Object> properties) {
if (properties == null || properties.isEmpty()) {
return Record.NO_NEXT_PROPERTY.intValue();
}
PropertyStore propStore = getPropertyStore();
List<PropertyRecord> propRecords = new ArrayList<PropertyRecord>();
PropertyRecord currentRecord = new PropertyRecord(propStore.nextId());
currentRecord.setInUse(true);
currentRecord.setCreated();
propRecords.add(currentRecord);
for (Entry<String, Object> entry : properties.entrySet()) {
int keyId = indexHolder.getKeyId(entry.getKey());
if (keyId == -1) {
keyId = createNewPropertyIndex(entry.getKey());
}
PropertyBlock block = new PropertyBlock();
propStore.encodeValue(block, keyId, entry.getValue());
if (currentRecord.size() + block.getSize() > PropertyType.getPayloadSize()) {
// Here it means the current block is done for
PropertyRecord prevRecord = currentRecord;
// Create new record
long propertyId = propStore.nextId();
currentRecord = new PropertyRecord(propertyId);
currentRecord.setInUse(true);
currentRecord.setCreated();
// Set up links
prevRecord.setNextProp(propertyId);
currentRecord.setPrevProp(prevRecord.getId());
propRecords.add(currentRecord);
// Now current is ready to start picking up blocks
}
currentRecord.addPropertyBlock(block);
}
/*
* Add the property records in reverse order, which means largest
* id first. That is to make sure we expand the property store file
* only once.
*/
for (int i = propRecords.size() - 1; i >= 0; i--) {
propStore.updateRecord(propRecords.get(i));
}
/*
* 0 will always exist, if the map was empty we wouldn't be here
* and even one property will create at least one record.
*/
return propRecords.get(0).getId();
}
@Test
public void testProps1() throws Exception {
initializeStores();
startTx();
long nodeId = ds.nextId(Node.class);
xaCon.getTransaction().nodeCreate(nodeId);
pStore.nextId();
DefinedProperty prop =
xaCon.getTransaction().nodeAddProperty(nodeId, index("nisse"), new Integer(10));
commitTx();
ds.stop();
initializeStores();
startTx();
xaCon.getTransaction().nodeChangeProperty(nodeId, prop.propertyKeyId(), new Integer(5));
xaCon.getTransaction().nodeRemoveProperty(nodeId, prop.propertyKeyId());
xaCon.getTransaction().nodeDelete(nodeId);
commitTx();
ds.stop();
}