Saxon.Api

 

 

Saxon.Api

Class StaticContext

public class StaticContext

The class StaticContext provides information about the static context of an expression.

The class is used to supply information about the static context of an extension function call, allowing the result of an extension function to depend on aspects of the static context such as the default collation.

Property Summary
 Uri BaseUri

The static base URI of the expression. Often the same as the URI of the containing module, but not necessarily so, for example in a stylesheet that uses external XML entities or the xml:base attribute

 net.sf.saxon.expr.StaticContext Implementation

The underlying object in the Saxon implementation, an instance of class Saxon.Hej.expr.StaticContext

 Uri ModuleUri

The URI of the module where an expression appears, suitable for use in diagnostics

 Processor Processor

The Processor that was used to create the query or stylesheet from which this extension function was invoked.

 

Method Summary
 string GetNamespaceForPrefix (string Prefix)

Resolve an in-scope namespace prefix to obtain the corresponding namespace URI. If the prefix is a zero-length string, the default namespace for elements and types is returned.

 

Property Detail

BaseUri

public Uri BaseUri {get; }

The static base URI of the expression. Often the same as the URI of the containing module, but not necessarily so, for example in a stylesheet that uses external XML entities or the xml:base attribute

Implementation

public net.sf.saxon.expr.StaticContext Implementation {get; }

The underlying object in the Saxon implementation, an instance of class Saxon.Hej.expr.StaticContext

This property provides access to internal methods in the Saxon engine that are not specifically exposed in the .NET API. In general these methods should be considered to be less stable than the classes in the Saxon.Api namespace.

The internal methods follow Java naming conventions rather than .NET conventions.

Information about the returned object (and the objects it provides access to) is included in the Saxon JavaDoc documentation, see net.sf.saxon.expr.StaticContext.

ModuleUri

public Uri ModuleUri {get; }

The URI of the module where an expression appears, suitable for use in diagnostics

Processor

public Processor Processor {get; }

The Processor that was used to create the query or stylesheet from which this extension function was invoked.

This property is useful if the extension function wishes to create new nodes (the Processor can be used to obtain a DocumentBuilder), or to execute XPath expressions or queries.

There may be circumstances in which the Processor is not available, in which case this method may return null, or may return a different Processor. This will happen only if low-level interfaces have been used to cause a Configuration to be shared between several Processor instances, or between a Processor and other applications.

Method Detail

GetNamespaceForPrefix

public string GetNamespaceForPrefix(string Prefix)

Resolve an in-scope namespace prefix to obtain the corresponding namespace URI. If the prefix is a zero-length string, the default namespace for elements and types is returned.

Parameters:

Prefix - The namespace prefix

Returns:

The corresponding namespace URI if there is one, or null otherwise