Package org.apache.commons.jxpath
Interface DynamicPropertyHandler
- All Known Implementing Classes:
HttpSessionHandler,MapDynamicPropertyHandler,PageContextHandler,PageScopeContextHandler,ServletContextHandler,ServletRequestHandler
public interface DynamicPropertyHandler
A generic mechanism for accessing collections of name/value pairs. Examples of such collections are HashMap, Properties, ServletContext. In order to add
support for a new such collection type to JXPath, perform the following two steps:
- Build an implementation of the DynamicPropertyHandler interface for the desired collection type.
- Invoke the static method
JXPathIntrospector.registerDynamicClass(class, handlerClass)
"myMap/myKey""myMap[@name = 'myKey']""myMap[name(.) = 'myKey']"
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Method Summary
Modifier and TypeMethodDescriptiongetProperty(Object object, String propertyName) Returns the value of the specified dynamic property.String[]getPropertyNames(Object object) Returns a list of dynamic property names for the supplied object.voidsetProperty(Object object, String propertyName, Object value) Modifies the value of the specified dynamic property.
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Method Details
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getProperty
Returns the value of the specified dynamic property.- Parameters:
object- to searchpropertyName- to retrieve- Returns:
- Object
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getPropertyNames
Returns a list of dynamic property names for the supplied object.- Parameters:
object- to inspect- Returns:
- String[]
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setProperty
Modifies the value of the specified dynamic property.- Parameters:
object- to modifypropertyName- to modifyvalue- to set
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