com.saxonica.stream.adjunct

Class CopyAdjunct

java.lang.Object

com.saxonica.stream.adjunct.StreamingAdjunct

com.saxonica.stream.adjunct.CopyAdjunct

public class CopyAdjunct
extends StreamingAdjunct

Compile an xsl:copy expression/instruction to streaming code. Used only for XSLT streaming capability.

Constructor Summary

Constructors

Constructor and Description
CopyAdjunct()

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(Copy instr, Stack<XPathContext> contextStack, Stack<Object> state) Process the first half of the instruction in streaming mode
static void	processRight(Copy instr, Stack<XPathContext> contextStack, Stack<Object> state) Process the second half of the instruction in streaming mode

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

CopyAdjunct

public CopyAdjunct()

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(Copy instr,
               Stack<XPathContext> contextStack,
               Stack<Object> state)
                        throws XPathException

Process the first half of the instruction in streaming mode

Throws:

XPathException

processRight

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

Process the second half of the instruction in streaming mode

Throws:

XPathException