/** Constructor helper. */
private void init(DataView view, boolean writeAllowed, CursorConfig config, KeyRange range)
throws DatabaseException {
if (config == null) {
config = view.cursorConfig;
}
this.view = view;
this.writeAllowed = writeAllowed && view.writeAllowed;
this.range = (range != null) ? range : view.range;
readUncommitted = config.getReadUncommitted() || view.currentTxn.isReadUncommitted();
initThangs();
if (joinCursor == null) {
cursor = new MyRangeCursor(this.range, config, view, this.writeAllowed);
}
}
/** Clones a cursor preserving the current position. */
DataCursor cloneCursor() throws DatabaseException {
checkNoJoinCursor();
DataCursor o;
try {
o = (DataCursor) super.clone();
} catch (CloneNotSupportedException neverHappens) {
return null;
}
o.initThangs();
KeyRange.copy(keyThang, o.keyThang);
KeyRange.copy(valueThang, o.valueThang);
if (primaryKeyThang != keyThang) {
KeyRange.copy(primaryKeyThang, o.primaryKeyThang);
}
o.cursor = cursor.dup(true);
return o;
}