Displaying the Data - Oracle ADF 11gR2 Development Beginner's Guide - page 162

af:treeTable
The af:treeTable component is similar to the table component but differs with a
hierarchical informaion display as a tree. The parent row is always collapsed and each
of the nodes is displayed by collapsing the node, as shown in the following screenshot:
Miscellaneous components
Some components in ADF are used to support other components which involve rendering
other components condiionally or looping through the components.
af:forEach
This component is used to display components in iteraion. The varStatus property of the
tag will expose the status during iteraion. This component does not contain an id atribute
The properies includes:
items : It gives the collecion or list for iteraion.
begin : It gives the index at which the loop begins.
end : It is the index at which the loop ends.
step : This is the number to increment on each iteraion.
var : It gives the name of the variable available inside the loop.
varStatus : It gives the loop status available on iteraion. This can have variables
such as index , count , step , first , last , begin , and end .
af:iterator
af:iterator will use the collectionModel component to iterate through the content
just like the table component. The rows processed by the af:iterator component are
adjusted using the rows property. For example, the user might want to display some text
next to the Ename atribute of each row of the EmpVO1 collecion in an output component.
Here, af:iterator can use EmpVO1 collectionModel as a value to iterate to get the
individual row and append the desired message.