public synchronized void closeClass(Class entityClass) throws DatabaseException {
checkOpen();
String clsName = entityClass.getName();
EntityMetadata entityMeta = checkEntityClass(clsName);
PrimaryIndex priIndex = priIndexMap.get(clsName);
if (priIndex != null) {
/* Close the secondaries first. */
DatabaseException firstException = null;
for (SecondaryKeyMetadata keyMeta : entityMeta.getSecondaryKeys().values()) {
String secName = makeSecName(clsName, keyMeta.getKeyName());
SecondaryIndex secIndex = secIndexMap.get(secName);
if (secIndex != null) {
Database db = secIndex.getDatabase();
firstException = closeDb(db, firstException);
firstException = closeDb(secIndex.getKeysDatabase(), firstException);
secIndexMap.remove(secName);
deferredWriteDatabases.remove(db);
}
}
/* Close the primary last. */
Database db = priIndex.getDatabase();
firstException = closeDb(db, firstException);
priIndexMap.remove(clsName);
deferredWriteDatabases.remove(db);
/* Throw the first exception encountered. */
if (firstException != null) {
throw firstException;
}
}
}
public synchronized void close() throws DatabaseException {
checkOpen();
DatabaseException firstException = null;
try {
if (rawAccess) {
boolean allClosed = catalog.close();
assert allClosed;
} else {
synchronized (catalogPool) {
Map<String, PersistCatalog> catalogMap = catalogPool.get(env);
assert catalogMap != null;
if (catalog.close()) {
/* Remove when the reference count goes to zero. */
catalogMap.remove(storeName);
}
}
}
catalog = null;
} catch (DatabaseException e) {
if (firstException == null) {
firstException = e;
}
}
firstException = closeDb(sequenceDb, firstException);
for (SecondaryIndex index : secIndexMap.values()) {
firstException = closeDb(index.getDatabase(), firstException);
firstException = closeDb(index.getKeysDatabase(), firstException);
}
for (PrimaryIndex index : priIndexMap.values()) {
firstException = closeDb(index.getDatabase(), firstException);
}
if (firstException != null) {
throw firstException;
}
}
/**
* Opens a secondary index with a given transaction and adds it to the secIndexMap. We assume that
* the index is not already open.
*/
private <SK, PK, E1, E2 extends E1> SecondaryIndex<SK, PK, E2> openSecondaryIndex(
Transaction txn,
PrimaryIndex<PK, E1> primaryIndex,
Class<E2> entityClass,
EntityMetadata entityMeta,
Class<SK> keyClass,
String keyClassName,
SecondaryKeyMetadata secKeyMeta,
String secName,
boolean doNotCreate,
PrimaryOpenState priOpenState)
throws DatabaseException {
assert !secIndexMap.containsKey(secName);
String dbName = storePrefix + secName;
SecondaryConfig config = getSecondaryConfig(secName, entityMeta, keyClassName, secKeyMeta);
Database priDb = primaryIndex.getDatabase();
DatabaseConfig priConfig = priDb.getConfig();
String relatedClsName = secKeyMeta.getRelatedEntity();
if (relatedClsName != null) {
PrimaryIndex relatedIndex = getRelatedIndex(relatedClsName);
config.setForeignKeyDatabase(relatedIndex.getDatabase());
}
if (config.getTransactional() != priConfig.getTransactional()
|| DbCompat.getDeferredWrite(config) != DbCompat.getDeferredWrite(priConfig)
|| config.getReadOnly() != priConfig.getReadOnly()) {
throw new IllegalArgumentException(
"One of these properties was changed to be inconsistent"
+ " with the associated primary database: "
+ " Transactional, DeferredWrite, ReadOnly");
}
PersistKeyBinding keyBinding = getKeyBinding(keyClassName);
/*
* doNotCreate is true when StoreConfig.getSecondaryBulkLoad is true
* and we are opening a secondary as a side effect of opening a
* primary, i.e., getSecondaryIndex is not being called. If
* doNotCreate is true and the database does not exist, we silently
* ignore the DatabaseNotFoundException and return null. When
* getSecondaryIndex is subsequently called, the secondary database
* will be created and populated from the primary -- a bulk load.
*/
SecondaryDatabase db;
boolean saveAllowCreate = config.getAllowCreate();
try {
if (doNotCreate) {
config.setAllowCreate(false);
}
db = env.openSecondaryDatabase(txn, dbName, priDb, config);
} catch (DatabaseNotFoundException e) {
if (doNotCreate) {
return null;
} else {
throw e;
}
} finally {
if (doNotCreate) {
config.setAllowCreate(saveAllowCreate);
}
}
SecondaryIndex<SK, PK, E2> secIndex =
new SecondaryIndex(db, null, primaryIndex, keyClass, keyBinding);
/* Update index and database maps. */
secIndexMap.put(secName, secIndex);
if (DbCompat.getDeferredWrite(config)) {
deferredWriteDatabases.put(db, null);
}
if (priOpenState != null) {
priOpenState.addDatabase(db);
priOpenState.addSecondaryName(secName);
}
return secIndex;
}
private void evolveIndex(Format format, EvolveEvent event, EvolveListener listener)
throws DatabaseException {
Class entityClass = format.getType();
String entityClassName = format.getClassName();
EntityMetadata meta = model.getEntityMetadata(entityClassName);
String keyClassName = meta.getPrimaryKey().getClassName();
keyClassName = SimpleCatalog.keyClassName(keyClassName);
DatabaseConfig dbConfig = getPrimaryConfig(meta);
PrimaryIndex<Object, Object> index =
getPrimaryIndex(Object.class, keyClassName, entityClass, entityClassName);
Database db = index.getDatabase();
EntityBinding binding = index.getEntityBinding();
DatabaseEntry key = new DatabaseEntry();
DatabaseEntry data = new DatabaseEntry();
Cursor readCursor = db.openCursor(null, CursorConfig.READ_UNCOMMITTED);
try {
while (readCursor.getNext(key, data, null) == OperationStatus.SUCCESS) {
if (evolveNeeded(key, data, binding)) {
Transaction txn = null;
if (dbConfig.getTransactional()) {
boolean success = false;
txn = env.beginTransaction(null, null);
}
boolean doCommit = false;
Cursor writeCursor = null;
try {
writeCursor = db.openCursor(txn, null);
if (writeCursor.getSearchKey(key, data, LockMode.RMW) == OperationStatus.SUCCESS) {
boolean written = false;
if (evolveNeeded(key, data, binding)) {
writeCursor.putCurrent(data);
written = true;
}
if (listener != null) {
EvolveInternal.updateEvent(event, entityClassName, 1, written ? 1 : 0);
if (!listener.evolveProgress(event)) {
break;
}
}
}
} finally {
if (writeCursor != null) {
writeCursor.close();
}
if (txn != null) {
if (doCommit) {
txn.commit();
} else {
txn.abort();
}
}
}
}
}
} finally {
readCursor.close();
}
}