com.saxonica.stream.adjunct

Class ElementInstrAdjunct

java.lang.Object

com.saxonica.stream.adjunct.StreamingAdjunct

com.saxonica.stream.adjunct.ElementInstrAdjunct

public class ElementInstrAdjunct
extends StreamingAdjunct

Generate streaming code for an xsl:element instruction

Constructor Summary

Constructors

Constructor and Description
ElementInstrAdjunct()

Method Summary

Methods

Modifier and Type	Method and Description
FeedMaker	getFeedMaker(Expression expression, int arg) Get a FeedMaker, a factory class that creates a Feed to evaluate this expression in streaming mode.
static void	processLeft(ElementCreator instr, Stack<XPathContext> contextStack, Stack<Object> state, NodeInfo copiedNode) In streaming mode, process the first half of the instruction (to start a new document or element)
static void	processRight(ElementCreator instr, Stack<XPathContext> contextStack, Stack<Object> state) In streaming mode, process the right half of the instruction (to end a new document or element)

Methods inherited from class com.saxonica.stream.adjunct.StreamingAdjunct

getConfiguration, getWatchMaker, makeStreamingAdjunct, setConfiguration

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ElementInstrAdjunct

public ElementInstrAdjunct()

Method Detail

getFeedMaker

public FeedMaker getFeedMaker(Expression expression,
                     int arg)

Description copied from class: StreamingAdjunct

Get a FeedMaker, a factory class that creates a Feed to evaluate this expression in streaming mode.

Overrides:

getFeedMaker in class StreamingAdjunct

Parameters:

expression - the expression to be evaluated in streaming mode

arg - identifies the argument with respect to which the expression is to be inverted: usually 0 to indicate the first argument is the value that is streamed. Argument numbering is the same as the sequence of arguments/operands returned by the method Expression.iterateSubExpressions()

Returns:

a FeedMaker to evaluate the expression, or null if it is not streamable with respect to the specificed argument.

processLeft

public static void processLeft(ElementCreator instr,
               Stack<XPathContext> contextStack,
               Stack<Object> state,
               NodeInfo copiedNode)
                        throws XPathException

In streaming mode, process the first half of the instruction (to start a new document or element)

Parameters:

contextStack - the dynamic evaluation context

state - a stack on which the instruction can save state information for use during the corresponding

copiedNode - for the benefit of xsl:copy, the node being copied; otherwise null

Throws:

XPathException - if a dynamic error occurs

processRight

public static void processRight(ElementCreator instr,
                Stack<XPathContext> contextStack,
                Stack<Object> state)
                         throws XPathException

In streaming mode, process the right half of the instruction (to end a new document or element)

Parameters:

contextStack - the stack of XPath context objects for the current execution state

state - a stack on which the instruction can save state information for use during the corresponding

Throws:

XPathException - if a dynamic error occurs