@Override
public ISchematicCursor getCursor(
ExecutionContext executionContext, IndexMeta indexMeta, String actualTableName)
throws TddlException {
Database db = getDatabase(actualTableName);
if (db == null) {
throw new TddlException("table don't contains indexName:" + actualTableName);
}
ITransaction txn = executionContext.getTransaction();
CursorConfig cc = CursorConfig.DEFAULT;
LockMode lm = LockMode.DEFAULT;
if (txn != null) {
com.sleepycat.je.TransactionConfig _config = ((JE_Transaction) txn).config;
if (_config.getReadUncommitted()) {
cc = CursorConfig.READ_UNCOMMITTED;
lm = LockMode.READ_UNCOMMITTED;
} else if (_config.getReadCommitted()) {
cc = CursorConfig.READ_COMMITTED;
// lm = LockMode.READ_COMMITTED;
}
} else {
cc = CursorConfig.READ_COMMITTED;
}
JE_Cursor je_cursor =
new JE_Cursor(
indexMeta, db.openCursor(txn == null ? null : ((JE_Transaction) txn).txn, cc), lm);
if (txn != null) {
((JE_Transaction) txn).addCursor(je_cursor);
}
return new SchematicCursor(
je_cursor, je_cursor.getiCursorMeta(), ExecUtils.getOrderBy(indexMeta));
}
public ISchematicCursor getCursor(
ITransaction txn, IndexMeta indexMeta, String isolation, String actualTableName)
throws TddlException {
Database db = getDatabase(actualTableName);
if (db == null) {
throw new TddlException("table don't contains indexName:" + actualTableName);
}
CursorConfig cc = CursorConfig.DEFAULT;
LockMode lm = LockMode.DEFAULT;
if (txn != null) {
com.sleepycat.je.TransactionConfig _config = ((JE_Transaction) txn).config;
if (_config.getReadUncommitted()) {
cc = CursorConfig.READ_UNCOMMITTED;
lm = LockMode.READ_UNCOMMITTED;
} else if (_config.getReadCommitted()) {
cc = CursorConfig.READ_COMMITTED;
// lm = LockMode.READ_COMMITTED;
}
} else {
if (Isolation.READ_COMMITTED.equals(isolation)) {
cc = CursorConfig.READ_COMMITTED;
// lm = LockMode.READ_COMMITTED;//not support
} else if (Isolation.READ_UNCOMMITTED.equals(isolation)) {
cc = CursorConfig.READ_UNCOMMITTED;
lm = LockMode.READ_UNCOMMITTED;
} else if (Isolation.REPEATABLE_READ.equals(isolation)) {
// default
} else if (Isolation.SERIALIZABLE.equals(isolation)) {
// txn_config
}
}
JE_Cursor je_cursor =
new JE_Cursor(
indexMeta, db.openCursor(txn == null ? null : ((JE_Transaction) txn).txn, cc), lm);
if (txn != null) {
((JE_Transaction) txn).addCursor(je_cursor);
}
return new SchematicCursor(
je_cursor, je_cursor.getiCursorMeta(), ExecUtils.getOrderBy(indexMeta));
}