private void open(Class clsToRegister) throws DatabaseException {
StoreConfig config = new StoreConfig();
config.setAllowCreate(envConfig.getAllowCreate());
if (clsToRegister != null) {
com.sleepycat.persist.model.EntityModel model =
new com.sleepycat.persist.model.AnnotationModel();
model.registerClass(clsToRegister);
config.setModel(model);
}
open(config);
}
/** Checks that an entity class exists or does not exist. */
void checkEntity(
boolean exists,
EntityModel model,
Environment env,
String className,
int version,
String secKeyName) {
if (exists) {
TestCase.assertNotNull(model.getEntityMetadata(className));
ClassMetadata meta = model.getClassMetadata(className);
TestCase.assertNotNull(meta);
TestCase.assertEquals(version, meta.getVersion());
TestCase.assertTrue(meta.isEntityClass());
RawType raw = model.getRawType(className);
TestCase.assertNotNull(raw);
TestCase.assertEquals(version, raw.getVersion());
RawType rawVersion = model.getRawTypeVersion(className, version);
TestCase.assertNotNull(rawVersion);
TestCase.assertTrue(!rawVersion.isDeleted());
} else {
TestCase.assertNull(model.getEntityMetadata(className));
TestCase.assertNull(model.getClassMetadata(className));
TestCase.assertNull(model.getRawType(className));
RawType rawVersion = model.getRawTypeVersion(className, version);
TestCase.assertTrue(rawVersion == null || rawVersion.isDeleted());
}
assertDbExists(exists, env, className);
if (secKeyName != null) {
assertDbExists(exists, env, className, secKeyName);
}
}
/**
* Opens a primary index related via a foreign key (relatedEntity). Related indexes are not opened
* in the same transaction used by the caller to open a primary or secondary. It is OK to leave
* the related index open when the caller's transaction aborts. It is only important to open a
* primary and its secondaries atomically.
*/
private PrimaryIndex getRelatedIndex(String relatedClsName) throws DatabaseException {
PrimaryIndex relatedIndex = priIndexMap.get(relatedClsName);
if (relatedIndex == null) {
EntityMetadata relatedEntityMeta = checkEntityClass(relatedClsName);
Class relatedKeyCls;
String relatedKeyClsName;
Class relatedCls;
if (rawAccess) {
relatedCls = RawObject.class;
relatedKeyCls = Object.class;
relatedKeyClsName = null;
} else {
try {
relatedCls = EntityModel.classForName(relatedClsName);
} catch (ClassNotFoundException e) {
throw new IllegalArgumentException("Related entity class not found: " + relatedClsName);
}
relatedKeyClsName =
SimpleCatalog.keyClassName(relatedEntityMeta.getPrimaryKey().getClassName());
relatedKeyCls = SimpleCatalog.keyClassForName(relatedKeyClsName);
}
/*
* Cycles are prevented here by adding primary indexes to the
* priIndexMap as soon as they are created, before opening related
* indexes.
*/
relatedIndex =
getPrimaryIndex(
relatedKeyCls, relatedKeyClsName,
relatedCls, relatedClsName);
}
return relatedIndex;
}
private EntityMetadata checkEntityClass(String clsName) {
EntityMetadata meta = model.getEntityMetadata(clsName);
if (meta == null) {
throw new IllegalArgumentException(
"Class could not be loaded or is not an entity class: " + clsName);
}
return meta;
}
private static void checkVersions(EntityModel model, String[] names, int[] versions) {
List<RawType> all = model.getAllRawTypeVersions(names[0]);
TestCase.assertNotNull(all);
assert names.length == versions.length;
TestCase.assertEquals(all.toString(), names.length, all.size());
Iterator<RawType> iter = all.iterator();
for (int i = 0; i < names.length; i += 1) {
RawType type = iter.next();
TestCase.assertEquals(versions[i], type.getVersion());
TestCase.assertEquals(names[i], type.getClassName());
}
}
private void setBtreeComparator(DatabaseConfig config, String clsName) {
if (!rawAccess) {
ClassMetadata meta = model.getClassMetadata(clsName);
if (meta != null) {
List<FieldMetadata> compositeKeyFields = meta.getCompositeKeyFields();
if (compositeKeyFields != null) {
Class keyClass = SimpleCatalog.keyClassForName(clsName);
if (Comparable.class.isAssignableFrom(keyClass)) {
Comparator<Object> cmp =
new PersistComparator(clsName, compositeKeyFields, getKeyBinding(clsName));
config.setBtreeComparator(cmp);
}
}
}
}
}
/**
* A getSecondaryIndex with extra parameters for opening a raw store. keyClassName is used for
* consistency checking and should be null for a raw store only.
*/
public synchronized <SK, PK, E1, E2 extends E1> SecondaryIndex<SK, PK, E2> getSecondaryIndex(
PrimaryIndex<PK, E1> primaryIndex,
Class<E2> entityClass,
String entityClassName,
Class<SK> keyClass,
String keyClassName,
String keyName)
throws DatabaseException {
assert (rawAccess && keyClassName == null) || (!rawAccess && keyClassName != null);
checkOpen();
EntityMetadata entityMeta = null;
SecondaryKeyMetadata secKeyMeta = null;
/* Validate the subclass for a subclass index. */
if (entityClass != primaryIndex.getEntityClass()) {
entityMeta = model.getEntityMetadata(entityClassName);
assert entityMeta != null;
secKeyMeta = checkSecKey(entityMeta, keyName);
String subclassName = entityClass.getName();
String declaringClassName = secKeyMeta.getDeclaringClassName();
if (!subclassName.equals(declaringClassName)) {
throw new IllegalArgumentException(
"Key for subclass "
+ subclassName
+ " is declared in a different class: "
+ makeSecName(declaringClassName, keyName));
}
}
/*
* Even though the primary is already open, we can't assume the
* secondary is open because we don't automatically open all
* secondaries when the primary is read-only. Use auto-commit (a null
* transaction) since we're opening only one database.
*/
String secName = makeSecName(entityClassName, keyName);
SecondaryIndex<SK, PK, E2> secIndex = secIndexMap.get(secName);
if (secIndex == null) {
if (entityMeta == null) {
entityMeta = model.getEntityMetadata(entityClassName);
assert entityMeta != null;
}
if (secKeyMeta == null) {
secKeyMeta = checkSecKey(entityMeta, keyName);
}
/* Check metadata. */
if (keyClassName == null) {
keyClassName = getSecKeyClass(secKeyMeta);
} else {
String expectClsName = getSecKeyClass(secKeyMeta);
if (!keyClassName.equals(expectClsName)) {
throw new IllegalArgumentException(
"Wrong secondary key class: " + keyClassName + " Correct class is: " + expectClsName);
}
}
secIndex =
openSecondaryIndex(
null,
primaryIndex,
entityClass,
entityMeta,
keyClass,
keyClassName,
secKeyMeta,
secName,
false /*doNotCreate*/,
null /*priOpenState*/);
}
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();
}
}