BlockAdjunct

java.lang.Object
- com.saxonica.ee.stream.adjunct.StreamingAdjunct
- - com.saxonica.ee.stream.adjunct.TransmissionAdjunct
  - - com.saxonica.ee.stream.adjunct.BlockAdjunct

All Implemented Interfaces:

FeedMaker
```
public class BlockAdjunct
extends TransmissionAdjunct
implements FeedMaker
```
Generate streaming code for a Block, that is a sequence of expressions or instructions

Constructor Summary

Constructors
Constructor Description

BlockAdjunct()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`WatchMaker`	`getWatchMaker(boolean forGrouping)`	Get a WatchMaker, a factory class that creates a Watch to evaluate this expression in streaming mode.
`ItemFeed`	`makeItemFeed(WatchManager watchManager, ItemFeed out, XPathContext context)`

Methods inherited from class com.saxonica.ee.stream.adjunct.TransmissionAdjunct
makeTransmissionFlow

Methods inherited from class com.saxonica.ee.stream.adjunct.StreamingAdjunct
computeStreamability, emptyAdjunctMap, findConsumingArg, genId, getConfiguration, getDefaultFeedMaker, getExpression, getFeedMaker, makeStreamingAdjunct, setConfiguration, setExpression, toStreamingPattern

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

- Constructor Detail
  - BlockAdjunct
```
public BlockAdjunct()
```
- Method Detail
  - getWatchMaker
```
public WatchMaker getWatchMaker(boolean forGrouping)
                         throws XPathException
```
    Get a WatchMaker, a factory class that creates a Watch to evaluate this expression in streaming mode. This method will only be called if the getImplementationMethod() method of the expression includes the value Expression.WATCH_METHOD
    
    Overrides:
    
    getWatchMaker in class TransmissionAdjunct
    
    Parameters:
    
    forGrouping - true if the selected items are being grouped
    
    Returns:
    
    a Watchmaker to evaluate the expression, or null if it is not streamable with respect to the specificed argument.
    
    Throws:
    
    XPathException - in the event of a failure
  - makeItemFeed
```
public ItemFeed makeItemFeed(WatchManager watchManager,
                             ItemFeed out,
                             XPathContext context)
                      throws XPathException
```
    Specified by:
    
    makeItemFeed in interface FeedMaker
    
    Throws:
    
    XPathException