ForItemMappingAction

java.lang.Object
- com.saxonica.ee.bytecode.map.ForItemMappingAction

All Implemented Interfaces:

ItemMappingFunction
```
public abstract class ForItemMappingAction
extends java.lang.Object
implements ItemMappingFunction
```
The ForItemMappingAction supports compilation of a ForExpression. It represents the action to be taken for each item in the source sequence. It acts as the MappingFunction for the mapping iterator. The map() method is generated in the subclass, and performs the "action" part of the for expression, being called once per iteration, and returning an iterator over the results.

Field Summary

Fields
Modifier and Type Field Description

protected XPathContext context

Constructor Summary

Constructors
Constructor Description

ForItemMappingAction()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract Item`	`mapItem(Item item)`	Map one item to another item.
`void`	`setContext(XPathContext context)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - context
```
protected XPathContext context
```
- Constructor Detail
  - ForItemMappingAction
```
public ForItemMappingAction()
```
- Method Detail
  - setContext
```
public void setContext(XPathContext context)
```
  - mapItem
```
public abstract Item mapItem(Item item)
                      throws XPathException
```
    Description copied from interface: ItemMappingFunction
    
    Map one item to another item.
    
    Specified by:
    
    mapItem in interface ItemMappingFunction
    
    Parameters:
    
    item - The input item to be mapped.
    
    Returns:
    
    either the output item, or null.
    
    Throws:
    
    XPathException - if a dynamic error occurs