Package org.apache.commons.jxpath
Class JXPathContextFactory
java.lang.Object
org.apache.commons.jxpath.JXPathContextFactory
- Direct Known Subclasses:
JXPathContextFactoryReferenceImpl
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(org.apache.commons.jxpath.JXPathContext, java.lang.Object) 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.- See Also:
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Field Summary
Fields -
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedConstructs a new JXPathContextFactory. -
Method Summary
Modifier and TypeMethodDescriptionabstract JXPathContextnewContext(JXPathContext parentContext, Object contextBean) Creates a new instance of a JXPathContext using the currently configured parameters.static JXPathContextFactoryObtain a new instance of aJXPathContextFactory.
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Field Details
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FACTORY_NAME_PROPERTY
The default property- See Also:
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Constructor Details
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JXPathContextFactory
protected JXPathContextFactory()Constructs a new JXPathContextFactory.
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Method Details
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newInstance
Obtain a new instance of aJXPathContextFactory. This static method creates a new factory instance. This method uses the following ordered lookup procedure to determine theJXPathContextFactoryimplementation class to load:- Use the
org.apache.commons.jxpath.JXPathContextFactorysystem 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 class name. The Services API will look for a class name
in the file
META- INF/services/<i>org.apache.commons.jxpath. JXPathContextFactory</i>in jars available to the runtime. - Platform default
JXPathContextFactoryinstance.
JXPathContextFactoryit can use the factory to obtain JXPathContext instances.- Returns:
- JXPathContextFactory
- Throws:
JXPathContextFactoryConfigurationError- if the implementation is not available or cannot be instantiated.
- Use the
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newContext
Creates a new instance of a JXPathContext using the currently configured parameters.- Parameters:
parentContext- parent contextcontextBean- Object bean- Returns:
- JXPathContext
- Throws:
JXPathContextFactoryConfigurationError- if a JXPathContext cannot be created which satisfies the configuration requested
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