net.sf.saxon.trans

Class CompoundMode

java.lang.Object

net.sf.saxon.expr.instruct.Actor

net.sf.saxon.trans.Mode

net.sf.saxon.trans.CompoundMode

All Implemented Interfaces:

SourceLocator, ExpressionOwner, Location, InstructionInfo, Locator

public class CompoundMode
extends Mode

A CompoundMode is a mode representing the templates contained within an xsl:override element in a using package together with the rules in the corresponding mode of the base package.

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.saxon.trans.Mode

Mode.RuleAction, Mode.RuleFilter

Field Summary

Fields inherited from class net.sf.saxon.trans.Mode

bindingSlotsAllocated, DEFAULT_MODE_NAME, hasRules, modeName, modeTracing, mustBeTyped, mustBeUntyped, OMNI_MODE, UNNAMED_MODE_NAME

Fields inherited from class net.sf.saxon.expr.instruct.Actor

body

Constructor Summary

Constructors

Constructor and Description
CompoundMode(Mode base, SimpleMode overrides) Create a compound Mode

Method Summary

Modifier and Type	Method and Description
void	allocateAllBindingSlots(StylesheetPackage pack) Allocate slot numbers to all the external component references in this component
void	computeRankings(int start) Compute a rank for each rule, as a combination of the precedence and priority, to allow rapid comparison.
void	explainTemplateRules(ExpressionPresenter presenter) Explain expression structure.
void	exportTemplateRules(ExpressionPresenter presenter) Export expression structure.
SimpleMode	getActivePart() Get the active component of this mode.
BuiltInRuleSet	getBuiltInRuleSet() Get the built-in template rules to be used with this Mode in the case where there is no explicit template rule
Set<String>	getExplicitNamespaces(NamePool pool) Get the "explicit namespaces" matched by this mode.
int	getMaxPrecedence() Get the maximum precedence of the rules in this mode
int	getMaxRank() Get the highest rank of the rules in this mode
Rule	getRule(Item item, XPathContext context) Get the rule corresponding to a given item, by finding the best pattern match.
Rule	getRule(Item item, XPathContext context, Mode.RuleFilter filter) Get the rule corresponding to a given item, by finding the best Pattern match.
int	getStackFrameSlotsNeeded()
boolean	isEmpty() Ask whether there are any template rules in this mode (a mode could exist merely because it is referenced in apply-templates)
void	processRules(Mode.RuleAction action) Walk over all the rules, applying a specified action to each one.

Methods inherited from class net.sf.saxon.trans.Mode

applyTemplates, explain, export, exportUseAccumulators, getAccumulators, getBuiltInRuleSetForCode, getCodeForBuiltInRuleSet, getComponentKind, getConstructType, getDeclaringComponent, getModeName, getModeTitle, getNextMatchRule, getObjectName, getRecoveryPolicy, getRule, getSymbolicName, isDeclaredStreamable, isModeTracing, isMustBeTyped, isUnnamedMode, makeNewContext, setAccumulators, setHasRules, setModeTracing, setRecoveryPolicy, setStreamable

Methods inherited from class net.sf.saxon.expr.instruct.Actor

allocateBindingSlotsRecursive, getBody, getColumnNumber, getDeclaredVisibility, getLineNumber, getLocation, getPackageData, getProperties, getProperty, getPublicId, getRetainedStaticContext, getStackFrameMap, getSystemId, isExportable, makeDeclaringComponent, obtainDeclaringComponent, saveLocation, setBody, setChildExpression, setDeclaredVisibility, setDeclaringComponent, setLineNumber, setPackageData, setRetainedStaticContext, setStackFrameMap, setSystemId

Methods inherited from class java.lang.Object

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

Constructor Detail

CompoundMode

public CompoundMode(Mode base,
                    SimpleMode overrides)

Create a compound Mode

Parameters:

base - the mode from the base (used) package

overrides - the mode containing (only) the overriding template rules from the using package

Method Detail

getBuiltInRuleSet

public BuiltInRuleSet getBuiltInRuleSet()

Get the built-in template rules to be used with this Mode in the case where there is no explicit template rule

Specified by:

getBuiltInRuleSet in class Mode

Returns:

the built-in rule set, defaulting to the TextOnlyCopyRuleSet if no other rule set has been supplied

getActivePart

public SimpleMode getActivePart()

Get the active component of this mode. For a simple mode this is the mode itself; for a compound mode it is the "overriding" part

Specified by:

getActivePart in class Mode

isEmpty

public boolean isEmpty()

Ask whether there are any template rules in this mode (a mode could exist merely because it is referenced in apply-templates)

Specified by:

isEmpty in class Mode

Returns:

true if no template rules exist in this mode

getMaxPrecedence

public int getMaxPrecedence()

Get the maximum precedence of the rules in this mode

Specified by:

getMaxPrecedence in class Mode

getMaxRank

public int getMaxRank()

Get the highest rank of the rules in this mode

Specified by:

getMaxRank in class Mode

Returns:

the highest rank

computeRankings

public void computeRankings(int start)
                     throws XPathException

Compute a rank for each rule, as a combination of the precedence and priority, to allow rapid comparison. This method also checks that there are no conflicts for property values in different xsl:mode declarations

Specified by:

computeRankings in class Mode

Parameters:

start - the lowest rank to use

Throws:

XPathException - if an error occurs processing the rules

processRules

public void processRules(Mode.RuleAction action)
                  throws XPathException

Walk over all the rules, applying a specified action to each one.

Specified by:

processRules in class Mode

Parameters:

action - an action that is to be applied to all the rules in this Mode

Throws:

XPathException - if an error occurs processing any of the rules

getExplicitNamespaces

public Set<String> getExplicitNamespaces(NamePool pool)

Get the "explicit namespaces" matched by this mode. Returns a set containing all the namespaces matched by specific template rules in this mode

Specified by:

getExplicitNamespaces in class Mode

Parameters:

pool - the NamePool for the configuration

Returns:

the set of all namespace URIs of names explicitly matched by rules in this mode

allocateAllBindingSlots

public void allocateAllBindingSlots(StylesheetPackage pack)

Allocate slot numbers to all the external component references in this component

Overrides:

allocateAllBindingSlots in class Actor

Parameters:

pack - the containing package

getRule

public Rule getRule(Item item,
                    XPathContext context)
             throws XPathException

Get the rule corresponding to a given item, by finding the best pattern match.

Specified by:

getRule in class Mode

Parameters:

item - the item to be matched

context - the XPath dynamic evaluation context

Returns:

the best matching rule, if any (otherwise null).

Throws:

XPathException - if an error occurs matching a pattern

getStackFrameSlotsNeeded

public int getStackFrameSlotsNeeded()

Specified by:

getStackFrameSlotsNeeded in class Mode

getRule

public Rule getRule(Item item,
                    XPathContext context,
                    Mode.RuleFilter filter)
             throws XPathException

Get the rule corresponding to a given item, by finding the best Pattern match.

Specified by:

getRule in class Mode

Parameters:

item - the item to be matched

context - the XPath dynamic evaluation context

filter - a filter to select which rules should be considered

Returns:

the best matching rule, if any (otherwise null).

Throws:

XPathException - if an error occurs

exportTemplateRules

public void exportTemplateRules(ExpressionPresenter presenter)
                         throws XPathException

Export expression structure. The abstract expression tree is written to the supplied outputstream.

Specified by:

exportTemplateRules in class Mode

Parameters:

presenter - the expression presenter used to generate the XML representation of the structure

Throws:

XPathException

explainTemplateRules

public void explainTemplateRules(ExpressionPresenter presenter)
                          throws XPathException

Explain expression structure. The abstract expression tree is written to the supplied outputstream.

Specified by:

explainTemplateRules in class Mode

Parameters:

presenter - the expression presenter used to generate the XML representation of the structure

Throws:

XPathException