Can ui:table deal with large table?

Question

I have found h:dataTable can do pagination because it's data source is just a DataModel. But ui:table's datasouce is a data provider which looks some complex and confused.
I have a large table and I want to load the data on-demand . So I try to implement a provider. But soon I found that the ui:table may be load all data from provider always.
In TableRowGroup.java, there are many code such as:
provider.getRowKeys(rowCount, null);
null will let provider load all data.
So ui:table can NOT deal with large table!?
thx.
fan

Answer 1

But ui:table just uses TableDataProvider interface.TableData provider is a wrapper for the CachedRowSet
There are two layers between the UI:Table comonent and the database table: the RowSet layer and the Data Provider layer. The RowSet layer makes the connection to the database, executes the queries, and manages the result set. The Data Provider layer provides a common interface for accessing many types of data, from rowsets, to Array objects, to Enterprise JavaBeans objects.
Typically, the only time that you work with the RowSet object is when you need to set query parameters. In most other cases, you should use the Data Provider to access and manipulate the data.
What can a CachedRowSet (or CachedRowSetprovider?)
do?Check out the API that I pointed you to to see what you can do with a CachedRowSet
Does the Table cache the data itself?
Maybe this way is convenient for filter and order?
Thx.I do not know the answers to these questions.