GroupStartingTester

java.lang.Object
- com.saxonica.ee.stream.adjunct.GroupBoundaryTester
- - com.saxonica.ee.stream.adjunct.GroupStartingTester

```
public class GroupStartingTester
extends GroupBoundaryTester
```
This class implements GroupingFeed when the group-starting-with option is used. It contains the logic to decide whether an item starts a new group

- Constructor Summary
  
  Constructors
  Constructor Description
  
  GroupStartingTester(ForEachGroup expression, XPathContext context)
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  boolean notifyItem()
  Signal an item that matches the selection has been found.
  - Methods inherited from class com.saxonica.ee.stream.adjunct.GroupBoundaryTester
    getControllingExpression, getLocalContext, setControllingExpression
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - GroupStartingTester
```
public GroupStartingTester(ForEachGroup expression,
                           XPathContext context)
```
- Method Detail
  - notifyItem
```
public boolean notifyItem()
                   throws XPathException
```
    Signal an item that matches the selection has been found.
    
    Specified by:
    
    notifyItem in class GroupBoundaryTester
    
    Returns:
    
    true if this item is the start of a new group
    
    Throws:
    
    XPathException - May be raised if a dynamic error occurs