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

boolean	canReturnCollationKeys(StringCollator collation) Given a collation, determine whether it is capable of returning collation keys.
Object	getCollationKey(NamedCollation 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
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
String	getVerifierClassName() Get the verifier class name appropriate to the platform
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.

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

getVerifierClassName

String getVerifierClassName()

Get the verifier class name appropriate to the 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(NamedCollation 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)

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