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

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 Details
- ItemsBeforeStreamer
  
  public ItemsBeforeStreamer()
Method Details
- 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