SlotManager (saxon JavaDoc)

Class SlotManager

public class SlotManager extends Object implements Serializable

A SlotManager supports functions, templates, etc: specifically, any executable code that requires a stack frame containing local variables. In XSLT a SlotManager underpins any top-level element that can contain local variable declarations, specifically, a top-level xsl:template, xsl:variable, xsl:param, or xsl:function element or an xsl:attribute-set element or xsl:key element. In XQuery it underpins functions and global variables. The purpose of the SlotManager is to allocate slot numbers to variables in the stack, and to record how many slots are needed. A Debugger may define a subclass with additional functionality.

Field Summary
static SlotManager	EMPTY An empty SlotManager

Field Summary

static SlotManager

EMPTY

An empty SlotManager

Constructor Summary
	SlotManager() The constructor should not be called directly.
	SlotManager(int n) Create a SlotManager with a given number of slots

Constructor Summary

SlotManager()

The constructor should not be called directly.

SlotManager(int n)

Create a SlotManager with a given number of slots

Method Summary
int	allocateSlotNumber(StructuredQName qName) Allocate a slot number for a variable
int	getNumberOfVariables() Get number of variables (size of stack frame)
List<StructuredQName>	getVariableMap() Get the variable map (simply a list of variable names as structured QNames).
void	setNumberOfVariables(int numberOfVariables) Set the number of variables

Method Summary

int

allocateSlotNumber(StructuredQName qName)

Allocate a slot number for a variable

int

getNumberOfVariables()

Get number of variables (size of stack frame)

List<StructuredQName>

getVariableMap()

Get the variable map (simply a list of variable names as structured QNames).

void

setNumberOfVariables(int numberOfVariables)