org.apache.commons.jxpath
Class JXPathContextFactory
java.lang.Object
org.apache.commons.jxpath.JXPathContextFactory
public abstract class JXPathContextFactory
extends java.lang.Object
Defines a factory API that enables applications to obtain a
JXPathContext instance. To acquire a JXPathContext, first call the
static newInstance()
method of JXPathContextFactory.
This method returns a concrete JXPathContextFactory.
Then call newContext()
on that instance. You will rarely
need to perform these steps explicitly: usually you can call one of the
JXPathContex.newContext
methods, which will perform these steps
for you.
$Revision: 1.8 $ $Date: 2004/02/29 14:17:42 $
FACTORY_NAME_PROPERTY
public static final String FACTORY_NAME_PROPERTY
The default property
JXPathContextFactory
protected JXPathContextFactory()
newInstance
public static JXPathContextFactory newInstance()
Obtain a new instance of a
JXPathContextFactory
.
This static method creates a new factory instance.
This method uses the following ordered lookup procedure to determine
the
JXPathContextFactory
implementation class to load:
-
Use the
org.apache.commons.jxpath.JXPathContextFactory
system property.
-
Alternatively, use the JAVA_HOME (the parent directory where jdk is
installed)/lib/jxpath.properties for a property file that contains the
name of the implementation class keyed on
org.apache.commons.jxpath.JXPathContextFactory
.
-
Use the Services API (as detailed in the JAR specification), if
available, to determine the classname. The Services API will look
for a classname in the file
META- INF/services/org.apache.commons.jxpath.
JXPathContextFactory
in jars available to the runtime.
-
Platform default
JXPathContextFactory
instance.
Once an application has obtained a reference to a
JXPathContextFactory
it can use the factory to
obtain JXPathContext instances.