net.sf.saxon
Interface Platform

All Superinterfaces:

Serializable

All Known Implementing Classes:

JavaPlatform

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(Comparator collation) Given a collation, determine whether it is capable of returning collation keys.
RegularExpression	compileRegularExpression(CharSequence regex, boolean isXPath, CharSequence flags) Create a compiled regular expression
Object	getCollationKey(Comparator collation, String value) Given a collation, get a collation key.
Source	getParserSource(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
URI	makeAbsolute(String relativeURI, String base) Construct an absolute URI from a relative URI and a base URI
Comparator	makeCollation(Configuration config, Properties props) Obtain a collation with a given set of properties.

Method Detail

initialize

void initialize(Configuration config)

Perform platform-specific initialization of the configuration

makeAbsolute

URI makeAbsolute(String relativeURI,
                 String base)
                 throws URISyntaxException

Construct an absolute URI from a relative URI and a base URI

Parameters:

relativeURI - the relative URI

base - the base URI

Returns:

the absolutized URI

Throws:

URISyntaxException

getPlatformVersion

String getPlatformVersion()

Get the platform version

getPlatformSuffix

String getPlatformSuffix()

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

getParserSource

Source getParserSource(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:

input - the supplied StreamSource

validation -

dtdValidation -

stripspace -

Returns:

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

compileRegularExpression

RegularExpression compileRegularExpression(CharSequence regex,
                                           boolean isXPath,
                                           CharSequence flags)
                                           throws XPathException

Create a compiled regular expression

Parameters:

regex - the source text of the regular expression, in XML Schema or XPath syntax

isXPath - set to true if this is an XPath regular expression, false if it is XML Schema

flags - the flags argument as supplied to functions such as fn:matches(), in string form

Returns:

the compiled regular expression

Throws:

XPathException - if the syntax of the regular expression or flags is incorrect

makeCollation

Comparator makeCollation(Configuration config,
                         Properties props)
                         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=ed-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

Returns:

a collation with these properties

Throws:

XPathException - if a fatal error occurs

canReturnCollationKeys

boolean canReturnCollationKeys(Comparator 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(Comparator collation,
                       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.

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)