ItemsBeforeStreamer

java.lang.Object
- com.saxonica.ee.stream.adjunct.StreamingAdjunct
- - com.saxonica.ee.stream.adjunct.TransmissionAdjunct
  - - com.saxonica.ee.stream.adjunct.FilteringAdjunct
    - - com.saxonica.ee.stream.adjunct.FilterFnStreamer
      - com.saxonica.ee.stream.adjunct.ItemsBeforeStreamer

All Implemented Interfaces:

FeedMaker
```
public class ItemsBeforeStreamer
extends FilterFnStreamer
```
Generate streaming code for the saxon:items-before function. The streamability rules are the same as for the fn:filter function.

Constructor Summary

Constructors
Constructor Description

ItemsBeforeStreamer()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`FilteringFeed.Filter`	`makeFilter(XPathContext context, ItemFeed out)`	Make a filter for the event stream

Methods inherited from class com.saxonica.ee.stream.adjunct.FilterFnStreamer
checkPredicateFunction, computeStreamability

Methods inherited from class com.saxonica.ee.stream.adjunct.FilteringAdjunct
makeItemFeed

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

Methods inherited from class com.saxonica.ee.stream.adjunct.StreamingAdjunct
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
  - ItemsBeforeStreamer
```
public ItemsBeforeStreamer()
```
- Method Detail
  - makeFilter
```
public FilteringFeed.Filter makeFilter(XPathContext context,
                                       ItemFeed out)
                                throws XPathException
```
    Make a filter for the event stream
    
    Overrides:
    
    makeFilter in class FilterFnStreamer
    
    Parameters:
    
    context - the XPath dynamic context
    
    out - the destination for the filtered events
    
    Returns:
    
    a filter that can be added to the event stream
    
    Throws:
    
    XPathException - if a dynamic evaluation error occurs