net.sf.saxon.expr.instruct

Class Executable

java.lang.Object

net.sf.saxon.expr.instruct.Executable

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

PreparedStylesheet

public class Executable
extends Object
implements Serializable

A compiled stylesheet or a query in executable form. Note that the original stylesheet tree is not retained.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Executable(Configuration config) Create a new Executable (a collection of stylesheet modules and/or query modules)

Method Summary

Methods

Modifier and Type	Method and Description
void	addQueryLibraryModule(QueryModule module) Add an XQuery library module to the configuration.
void	addQueryLocationHintProcessed(String uri) Add a name to the list of query module location hints that have been processed during the construction of this executable
void	addRequiredParam(StructuredQName qName) Add a required parameter.
void	checkAllRequiredParamsArePresent(GlobalParameterSet params) Check that all required parameters have been supplied.
boolean	createsSecondaryResult() Ask whether this executable represents a stylesheet that uses xsl:result-document to create secondary output documents
void	explainGlobalVariables(ExpressionPresenter presenter) Explain (that is, output an expression tree) the global variables
void	fixupQueryModules(QueryModule main, boolean checkForCycles) Fix up global variables and functions in all query modules.
CharacterMapIndex	getCharacterMapIndex() Get the index of named character maps
CollationMap	getCollationTable() Get the table of collations
HashMap<StructuredQName,GlobalVariable>	getCompiledGlobalVariables() Get the index of global variables
Configuration	getConfiguration() Get the configuration
Properties	getDefaultOutputProperties() Get the default output properties
FunctionLibraryList	getFunctionLibrary() Get the library containing all the in-scope functions in the static context
GlobalVariable	getGlobalVariable(StructuredQName name) Get the global variable with a given name
SlotManager	getGlobalVariableMap() Get the global variable map
int	getHostLanguage() Get the host language
StructuredQName	getInitialContextItemVariableName() Get the the name of the variable that will implicitly contain the value of the initial context item.
KeyManager	getKeyManager() Get the KeyManager which handles key definitions
int	getLargestPatternStackFrame() Determine the size of the stack frame needed for evaluating match patterns
LocationMap	getLocationMap() Get the location map
StringCollator	getNamedCollation(String name) Find a named collation.
Properties	getOutputProperties(StructuredQName qName) Get a named output format
Iterator	getQueryLibraryModules() Get an iterator over all the query library modules (does not include the main module)
List<QueryModule>	getQueryLibraryModules(String namespace) Locate the known XQuery library modules for a given module namespace.
QueryModule	getQueryModuleWithSystemId(String systemId, QueryModule topModule) Get the query library module with a given systemID
SpaceStrippingRule	getStripperRules() Get the rules determining which nodes are to be stripped from the tree
void	initializeBindery(Bindery bindery) Allocate space in bindery for all the variables needed
boolean	isAllowXPath30() Ask whether XPath 3.0 functionality is enabled
boolean	isQueryLocationHintProcessed(String uri) Ask whether a query module location hint has already been processed
boolean	isSchemaAware() Ask whether this executable is schema-aware, that is, whether the query or transformation imports a schema.
void	registerGlobalVariable(GlobalVariable variable) Register a global variable
void	setCharacterMapIndex(CharacterMapIndex cmi) Set the index of named character maps
void	setCollationMap(CollationMap table) Set the table of collations
void	setConfiguration(Configuration config) Set the configuration
void	setCreatesSecondaryResult(boolean flag) Set whether this executable represents a stylesheet that uses xsl:result-document to create secondary output documents
void	setDefaultOutputProperties(Properties properties) Set the default output properties (the properties for the unnamed output format)
void	setFunctionLibrary(FunctionLibraryList functionLibrary) Set the library containing all the in-scope functions in the static context
void	setHostLanguage(int language, boolean allowXPath30) Set the host language
void	setInitialContextItemVariableName(StructuredQName name) Set the name of the variable that will implicitly contain the value of the initial context item.
void	setKeyManager(KeyManager km) Set the KeyManager which handles key definitions
void	setLocationMap(LocationMap map) Set the location map
void	setOutputProperties(StructuredQName qName, Properties properties) Add a named output format
void	setPatternSlotSpace(int patternLocals) Set the space requirements for variables used in template match patterns
void	setSchemaAware(boolean aware) Set whether this executable is schema-aware.
void	setStripperRules(SpaceStrippingRule rules) Set the rules determining which nodes are to be stripped from the tree
void	setStripsInputTypeAnnotations(boolean strips) Set whether source documents are to have their type annotations stripped
void	setStripsWhitespace(boolean strips) Indicate that the stylesheet does some whitespace stripping
boolean	stripsInputTypeAnnotations() Ask whether source documents are to have their type annotations stripped
boolean	stripsWhitespace() Determine whether this stylesheet does any whitespace stripping

Methods inherited from class java.lang.Object

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

Constructor Detail

Executable

public Executable(Configuration config)

Create a new Executable (a collection of stylesheet modules and/or query modules)

Parameters:

config - the Saxon Configuration

Method Detail

setConfiguration

public void setConfiguration(Configuration config)

Set the configuration

Parameters:

config - the Configuration

getConfiguration

public Configuration getConfiguration()

Get the configuration

Returns:

the Configuration

setHostLanguage

public void setHostLanguage(int language,
                   boolean allowXPath30)

Set the host language

Parameters:

language - the host language, as a constant such as Configuration.XSLT or Configuration.XQUERY

allowXPath30 - true if functionality defined in XPath 3.0 (for example, new casting options) is enabled

getHostLanguage

public int getHostLanguage()

Get the host language

Returns:

a value identifying the host language: Configuration.XQUERY or Configuration.XSLT or Configuration.JAVA_APPLICATION

isAllowXPath30

public boolean isAllowXPath30()

Ask whether XPath 3.0 functionality is enabled

Returns:

true of XPath 3.0 (and/or XSLT 3.0, XQuery 3.0) functionality can be used

getFunctionLibrary

public FunctionLibraryList getFunctionLibrary()

Get the library containing all the in-scope functions in the static context

Returns:

the function libary

setFunctionLibrary

public void setFunctionLibrary(FunctionLibraryList functionLibrary)

Set the library containing all the in-scope functions in the static context

Parameters:

functionLibrary - the function libary

setCharacterMapIndex

public void setCharacterMapIndex(CharacterMapIndex cmi)

Set the index of named character maps

Parameters:

cmi - a hash table that maps the names of character maps to the HashMap objects representing the character maps

getCharacterMapIndex

public CharacterMapIndex getCharacterMapIndex()

Get the index of named character maps

Returns:

the hash table that maps the names of character maps to the IntHashMap objects representing the character maps

setStripperRules

public void setStripperRules(SpaceStrippingRule rules)

Set the rules determining which nodes are to be stripped from the tree

Parameters:

rules - a Mode object containing the whitespace stripping rules. A Mode is generally a collection of template rules, but it is reused here to represent a collection of stripping rules.

getStripperRules

public SpaceStrippingRule getStripperRules()

Get the rules determining which nodes are to be stripped from the tree

Returns:

a SpaceStrippingRule object containing the whitespace stripping rules.

setStripsWhitespace

public void setStripsWhitespace(boolean strips)

Indicate that the stylesheet does some whitespace stripping

Parameters:

strips - true if the stylesheet performs whitespace stripping of one or more elements.

stripsWhitespace

public boolean stripsWhitespace()

Determine whether this stylesheet does any whitespace stripping

Returns:

true if the stylesheet performs whitespace stripping of one or more elements.

setStripsInputTypeAnnotations

public void setStripsInputTypeAnnotations(boolean strips)

Set whether source documents are to have their type annotations stripped

Parameters:

strips - true if type annotations are to be stripped

stripsInputTypeAnnotations

public boolean stripsInputTypeAnnotations()

Ask whether source documents are to have their type annotations stripped

Returns:

true if type annotations are stripped from source documents

setKeyManager

public void setKeyManager(KeyManager km)

Set the KeyManager which handles key definitions

Parameters:

km - the KeyManager containing the xsl:key definitions

getKeyManager

public KeyManager getKeyManager()

Get the KeyManager which handles key definitions

Returns:

the KeyManager containing the xsl:key definitions

setDefaultOutputProperties

public void setDefaultOutputProperties(Properties properties)

Set the default output properties (the properties for the unnamed output format)

Parameters:

properties - the output properties to be used when the unnamed output format is selected

getDefaultOutputProperties

public Properties getDefaultOutputProperties()

Get the default output properties

Returns:

the properties for the unnamed output format

setOutputProperties

public void setOutputProperties(StructuredQName qName,
                       Properties properties)

Add a named output format

Parameters:

qName - the structured QName of the output format

properties - the properties of the output format

getOutputProperties

public Properties getOutputProperties(StructuredQName qName)

Get a named output format

Parameters:

qName - the name of the output format

Returns:

properties the properties of the output format. Return null if there are no output properties with the given name

setCollationMap

public void setCollationMap(CollationMap table)

Set the table of collations

Parameters:

table - a hash table that maps collation names (URIs) to objects representing the collation information

getCollationTable

public CollationMap getCollationTable()

Get the table of collations

Returns:

a hash table that maps collation names (URIs) to objects representing the collation information

getNamedCollation

public StringCollator getNamedCollation(String name)

Find a named collation.

Parameters:

name - identifies the name of the collation required; null indicates that the default collation is required

Returns:

the requested collation, or null if the collation is not found

addQueryLibraryModule

public void addQueryLibraryModule(QueryModule module)

Add an XQuery library module to the configuration. The Executable maintains a table indicating for each module namespace, the set of modules that have been loaded from that namespace. If a module import is encountered that specifies no location hint, all the known modules for that namespace are imported.

Parameters:

module - the library module to be added to this executable

getQueryLibraryModules

public List<QueryModule> getQueryLibraryModules(String namespace)

Locate the known XQuery library modules for a given module namespace.

Parameters:

namespace - the module namespace URI

Returns:

a list of items each of which is the StaticQueryContext representing a module, or null if the module namespace is unknown

getQueryModuleWithSystemId

public QueryModule getQueryModuleWithSystemId(String systemId,
                                     QueryModule topModule)

Get the query library module with a given systemID

Parameters:

systemId - the SystemId of the required module

topModule - the top-level query module (usually a main module, except when importing library modules into XSLT)

Returns:

the module with that system id if found, otherwise null

getQueryLibraryModules

public Iterator getQueryLibraryModules()

Get an iterator over all the query library modules (does not include the main module)

Returns:

an iterator whose returned items are instances of QueryModule

addQueryLocationHintProcessed

public void addQueryLocationHintProcessed(String uri)

Add a name to the list of query module location hints that have been processed during the construction of this executable

Parameters:

uri - the name to be added (the location URI as it appears in the "import module" declaration, expanded to an absolute URI by resolving against the base URI, but before passing to the Module Resolver)

isQueryLocationHintProcessed

public boolean isQueryLocationHintProcessed(String uri)

Ask whether a query module location hint has already been processed

Parameters:

uri - the query location hint (the location URI as it appears in the "import module" declaration, expanded to an absolute URI by resolving against the base URI, but before passing to the Module Resolver)

Returns:

true if the location hint has already been processed

fixupQueryModules

public void fixupQueryModules(QueryModule main,
                     boolean checkForCycles)
                       throws XPathException

Fix up global variables and functions in all query modules. This is done right at the end, because recursive imports are permitted

Parameters:

main - the main query module

checkForCycles - if a check for cyclicity among modules is to be performed. This is a check for cycles at the level of a module (error XQST0093)

Throws:

XPathException - if an error occurs

setPatternSlotSpace

public void setPatternSlotSpace(int patternLocals)

Set the space requirements for variables used in template match patterns

Parameters:

patternLocals - The largest number of local variables used in the match pattern of any template rule

getGlobalVariable

public GlobalVariable getGlobalVariable(StructuredQName name)

Get the global variable with a given name

Parameters:

name - the name of the required variable

Returns:

the GlobalVariable with this name, or null if not found

getGlobalVariableMap

public SlotManager getGlobalVariableMap()

Get the global variable map

Returns:

the SlotManager defining the allocation of slots to global variables

getCompiledGlobalVariables

public HashMap<StructuredQName,GlobalVariable> getCompiledGlobalVariables()

Get the index of global variables

Returns:

the index of global variables. This is a HashMap in which the key is the StructuredQName of the variable name, and the value is the GlobalVariable object representing the compiled global variable. If there are no global variables, the method may return null.

explainGlobalVariables

public void explainGlobalVariables(ExpressionPresenter presenter)

Explain (that is, output an expression tree) the global variables

Parameters:

presenter - the destination for the explanation of the global variables

registerGlobalVariable

public void registerGlobalVariable(GlobalVariable variable)

Register a global variable

Parameters:

variable - the global variable to be registered

initializeBindery

public void initializeBindery(Bindery bindery)

Allocate space in bindery for all the variables needed

Parameters:

bindery - The bindery to be initialized

getLargestPatternStackFrame

public int getLargestPatternStackFrame()

Determine the size of the stack frame needed for evaluating match patterns

Returns:

the size of the largest stack frame needed for evaluating the match patterns that appear in XSLT template rules

setLocationMap

public void setLocationMap(LocationMap map)

Set the location map

Parameters:

map - the location map, which is used to identify the module URI and line number of locations of errors

getLocationMap

public LocationMap getLocationMap()

Get the location map

Returns:

the location map, which is used to identify the locations of errors

addRequiredParam

public void addRequiredParam(StructuredQName qName)

Add a required parameter. Used in XSLT only.

Parameters:

qName - the name of the required parameter

checkAllRequiredParamsArePresent

public void checkAllRequiredParamsArePresent(GlobalParameterSet params)
                                      throws XPathException

Check that all required parameters have been supplied. Used in XSLT only.

Parameters:

params - the set of parameters that have been supplied

Throws:

XPathException - if there is a required parameter for which no value has been supplied

setCreatesSecondaryResult

public void setCreatesSecondaryResult(boolean flag)

Set whether this executable represents a stylesheet that uses xsl:result-document to create secondary output documents

Parameters:

flag - true if the executable uses xsl:result-document

createsSecondaryResult

public boolean createsSecondaryResult()

Ask whether this executable represents a stylesheet that uses xsl:result-document to create secondary output documents

Returns:

true if the executable uses xsl:result-document

setInitialContextItemVariableName

public void setInitialContextItemVariableName(StructuredQName name)

Set the name of the variable that will implicitly contain the value of the initial context item. The properties of this variable, such as its required type and initial value, automatically apply to the initial context item

Parameters:

name - the name of the global variable that mirrors the initial context item; or null if there is no such variable

getInitialContextItemVariableName

public StructuredQName getInitialContextItemVariableName()

Get the the name of the variable that will implicitly contain the value of the initial context item. The properties of this variable, such as its required type and initial value, automatically apply to the initial context item

Returns:

the name of the global variable that mirrors the initial context item

setSchemaAware

public void setSchemaAware(boolean aware)

Set whether this executable is schema-aware. The initial value is false; it is set to true at compile time if the query or transformation imports a schema. If the value is false, then all documents used at run-time must be untyped

Parameters:

aware - true if the executable is schema-aware

Throws:

IllegalArgumentException - if schema-aware processing is requested in a Configuration that is not schema-aware

isSchemaAware

public boolean isSchemaAware()

Ask whether this executable is schema-aware, that is, whether the query or transformation imports a schema.

Returns:

true if the executable is schema-aware, false if not.