Package org.apache.commons.jxpath
Interface DynamicPropertyHandler
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- All Known Implementing Classes:
MapDynamicPropertyHandler
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']"
- Version:
- $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description java.lang.Object
getProperty(java.lang.Object object, java.lang.String propertyName)
Returns the value of the specified dynamic property.java.lang.String[]
getPropertyNames(java.lang.Object object)
Returns a list of dynamic property names for the supplied object.void
setProperty(java.lang.Object object, java.lang.String propertyName, java.lang.Object value)
Modifies the value of the specified dynamic property.
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Method Detail
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getPropertyNames
java.lang.String[] getPropertyNames(java.lang.Object object)
Returns a list of dynamic property names for the supplied object.- Parameters:
object
- to inspect- Returns:
- String[]
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getProperty
java.lang.Object getProperty(java.lang.Object object, java.lang.String propertyName)
Returns the value of the specified dynamic property.- Parameters:
object
- to searchpropertyName
- to retrieve- Returns:
- Object
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setProperty
void setProperty(java.lang.Object object, java.lang.String propertyName, java.lang.Object value)
Modifies the value of the specified dynamic property.- Parameters:
object
- to modifypropertyName
- to modifyvalue
- to set
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