CacheableTreeTableModel contains methods for determining whether the children count or the column values of a tree node have been retrieved (cached). These are:

public boolean isCountCached(Object node);

public boolean isValueCached(Object node, int column);

In addition, the method:

public boolean isRangedModel();

, determines whether or not the model can fetch data in ranges.

Finally, the methods:

public java.util.List getUncachedGroups(Object parent, int from, int to);

public java.util.List getUncachedChildren(Object parent, int from, int to);

public int getUncachedGroupCount(Object node);

, retrieve the cell values and children count from the treetable model by specifying a row interval. In our framework, these methods are used by a Cache (TreeTableCache) object.