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
 String getInstallationDirectory(String edition)
          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
 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.
 void registerAllBuiltInObjectModels(Configuration config)
          Register all the external object models that are provided as standard with the relevant edition of Saxon for this Configuration
 

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

getInstallationDirectory

String getInstallationDirectory(String edition)
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")
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


Copyright (c) 2004-2010 Saxonica Limited. All rights reserved.