net.sf.saxon

Interface Platform

All Superinterfaces:

Serializable

All Known Implementing Classes:

JavaPlatform, JavaPlatformPE

public interface Platform
extends Serializable

This interface provides access to methods whose implementation depends on the chosen platform (typically Java or .NET)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canReturnCollationKeys(StringCollator collation) Given a collation, determine whether it is capable of returning collation keys.
RegularExpression	compileRegularExpression(CharSequence regex, String flags, String hostLanguage, List<String> warnings) Compile a regular expression
ClassLoader	getClassLoaderForGeneratedClass(String definedClassName, byte[] classFile, Configuration config, Class thisClass) Return the class loader required to load the bytecode generated classes
Object	getCollationKey(SimpleCollation namedCollation, String value) Given a collation, get a collation key.
SchemaType	getExternalObjectType(Configuration config, String uri, String localName) Get a SchemaType representing a wrapped external (Java or .NET) object
String	getInstallationDirectory(String edition, Configuration config) Return the name of the directory in which the software is installed (if available)
Source	getParserSource(PipelineConfiguration pipe, StreamSource input, int validation, boolean dtdValidation, int stripspace) Convert a StreamSource to either a SAXSource or a PullSource, depending on the native parser of the selected platform
String	getPlatformSuffix() Get a suffix letter to add to the Saxon version number to identify the platform
String	getPlatformVersion() Get the platform version
void	initialize(Configuration config) Perform platform-specific initialization of the configuration
boolean	isDotNet() Return true if this is the .NET platform
boolean	isJava() Return true if this is the Java platform
XMLReader	loadParser() Get a parser by instantiating the SAXParserFactory
StringCollator	makeCollation(Configuration config, Properties props, String uri) Obtain a collation with a given set of properties.
void	registerAllBuiltInObjectModels(Configuration config) Register all the external object models that are provided as standard with the relevant edition of Saxon for this Configuration
void	setDefaultSAXParserFactory() Set the default XML parser to be loaded by the SAXParserFactory on this platform.

Method Detail

initialize

void initialize(Configuration config)

Perform platform-specific initialization of the configuration

Parameters:

config - the Saxon Configuration

isJava

boolean isJava()

Return true if this is the Java platform

Returns:

true if this is the Java platform

isDotNet

boolean isDotNet()

Return true if this is the .NET platform

Returns:

true if this is the .NET platform

getPlatformVersion

String getPlatformVersion()

Get the platform version

Returns:

the version of the platform, for example "Java version 1.5.09"

getPlatformSuffix

String getPlatformSuffix()

Get a suffix letter to add to the Saxon version number to identify the platform

Returns:

"J" for Java, "N" for .NET

loadParser

XMLReader loadParser()

Get a parser by instantiating the SAXParserFactory

Returns:

the parser (XMLReader)

getParserSource

Source getParserSource(PipelineConfiguration pipe,
                     StreamSource input,
                     int validation,
                     boolean dtdValidation,
                     int stripspace)

Convert a StreamSource to either a SAXSource or a PullSource, depending on the native parser of the selected platform

Parameters:

pipe - the pipeline Configuration

input - the supplied StreamSource

validation - required validation mode, for example Validation.STRICT

dtdValidation - true if DTD-based input validation is required

stripspace - option for whitespace-stripping (ALL, NONE, or IGNORABLE)

Returns:

the PullSource or SAXSource, initialized with a suitable parser, or the original input Source, if now special handling is required or possible

makeCollation

StringCollator makeCollation(Configuration config,
                           Properties props,
                           String uri)
                             throws XPathException

Obtain a collation with a given set of properties. The set of properties is extensible and variable across platforms. Common properties with example values include lang=en-GB, strength=primary, case-order=upper-first, ignore-modifiers=yes, alphanumeric=yes. Properties that are not supported are generally ignored; however some errors, such as failing to load a requested class, are fatal.

Parameters:

config - the configuration object

props - the desired properties of the collation

uri - the collation URI

Returns:

a collation with these properties

Throws:

XPathException - if a fatal error occurs

canReturnCollationKeys

boolean canReturnCollationKeys(StringCollator collation)

Given a collation, determine whether it is capable of returning collation keys. The essential property of collation keys is that if two values are equal under the collation, then the collation keys are equal under the equals() method.

Parameters:

collation - the collation being examined, provided as a Comparator

Returns:

true if this collation can supply collation keys

getCollationKey

Object getCollationKey(SimpleCollation namedCollation,
                     String value)

Given a collation, get a collation key. The essential property of collation keys is that if two values are equal under the collation, then the collation keys are equal under the equals() method.

Parameters:

namedCollation - the collation in use

value - the string whose collation key is required

Returns:

a representation of the collation key, such that two collation keys are equal() if and only if the string values they represent are equal under the specified collation.

Throws:

ClassCastException - if the collation is not one that is capable of supplying collation keys (this should have been checked in advance)

compileRegularExpression

RegularExpression compileRegularExpression(CharSequence regex,
                                         String flags,
                                         String hostLanguage,
                                         List<String> warnings)
                                           throws XPathException

Compile a regular expression

Parameters:

regex - the regular expression as a string

flags - the value of the flags attribute

hostLanguage - one of "XSD", XP20" or "XP30"

warnings - if non-null, any warnings from the regular expression compiler will be added to this list. If null, the warnings are ignored.

Returns:

the compiled regular expression

Throws:

XPathException - if the regular expression or the flags are invalid

getExternalObjectType

SchemaType getExternalObjectType(Configuration config,
                               String uri,
                               String localName)

Get a SchemaType representing a wrapped external (Java or .NET) object

Parameters:

config - the Saxon Configuration

uri - the namespace URI of the schema type

localName - the local name of the schema type

Returns:

the SchemaType object representing this type

getInstallationDirectory

String getInstallationDirectory(String edition,
                              Configuration config)

Return the name of the directory in which the software is installed (if available)

Parameters:

edition - The edition of the software that is loaded ("HE", "PE", or "EE")

config - the Saxon configuration

Returns:

the name of the directory in which Saxon is installaed, if available, or null otherwise

registerAllBuiltInObjectModels

void registerAllBuiltInObjectModels(Configuration config)

Register all the external object models that are provided as standard with the relevant edition of Saxon for this Configuration

Since:

9.3

setDefaultSAXParserFactory

void setDefaultSAXParserFactory()

Set the default XML parser to be loaded by the SAXParserFactory on this platform. Needed because the Apache catalog resolver uses the SAXParserFactory to instantiate a parser, and if not customized this causes a failure on the .NET platform.

Since:

9.4

getClassLoaderForGeneratedClass

ClassLoader getClassLoaderForGeneratedClass(String definedClassName,
                                          byte[] classFile,
                                          Configuration config,
                                          Class thisClass)

Return the class loader required to load the bytecode generated classes

Parameters:

definedClassName - The generated class name

classFile - The bytecode of the generated class

config - The cThe saxon configuration

thisClass - The class object generated

Returns:

the class loader object

Since:

9.4