net.sf.saxon.lib

Class EmptySource

java.lang.Object

net.sf.saxon.lib.EmptySource

All Implemented Interfaces:

javax.xml.transform.Source

public class EmptySource
extends java.lang.Object
implements javax.xml.transform.Source

This class is an implementation of the JAXP Source interface. It represents a dummy Source, which resolves to an empty sequence. A URIResolver (called perhaps in furtherance of the doc() or document() function) can choose to return an EmptySource for example if a URI is not accessible; the effect is that the call on doc() or document() returns an empty sequence. This may be useful to emulate the behaviour of earlier versions of XSLT.

The class is a singleton marker class.

See also bug 4752.

Since:

10.4

Method Summary

Modifier and Type	Method and Description
static EmptySource	getInstance()
java.lang.String	getSystemId() Get the system identifier that was set with setSystemId.
void	setSystemId(java.lang.String systemId) Set the system identifier for this Source.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getInstance

public static EmptySource getInstance()

setSystemId

public void setSystemId(java.lang.String systemId)

Set the system identifier for this Source. This is a dummy implementation to satisfy the interface, and it does nothing.

Specified by:

setSystemId in interface javax.xml.transform.Source

Parameters:

systemId - The system identifier as a URL string.

getSystemId

public java.lang.String getSystemId()

Get the system identifier that was set with setSystemId.

Specified by:

getSystemId in interface javax.xml.transform.Source

Returns:

null (always). The class is stateless.