JXPathBeanInfo

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org.apache.commons.jxpath
Interface JXPathBeanInfo

All Known Implementing Classes:: JXPathBasicBeanInfo

public interface JXPathBeanInfo

JXPathBeanInfo is similar to java.beans.BeanInfo in that it describes properties of a JavaBean class. By default, JXPathBeanInfo classes are automatically generated by JXPathIntrospector based on the java.beans.BeanInfo. As with JavaBeans, the user can supply an alternative implementation of JXPathBeanInfo for a custom class. The alternative implementation is located by class name, which is the same as the name of the class it represents with the suffix "XBeanInfo". So, for example, if you need to provide an alternative JXPathBeanInfo class for class "com.foo.Bar", write a class "com.foo.BarXBeanInfo" and make it implement the JXPathBeanInfo interface.

Version:: $Revision: 1.7 $ $Date: 2004/02/29 14:17:42 $

Method Summary

java.lang.Class getDynamicPropertyHandlerClass()
          For dynamic objects, returns the class implementing the DynamicPropertyHandler interface.

java.beans.PropertyDescriptor getPropertyDescriptor(java.lang.String propertyName)
          Returns a PropertyDescriptor for the specified name or null if there is no such property.

java.beans.PropertyDescriptor[] getPropertyDescriptors()
          Returns a list of property descriptors for the beans described by this bean info object.

boolean isAtomic()
          Returns true if objects of this class are treated as atomic objects which have no properties of their own.

boolean isDynamic()
          Returns true if the objects of this class have dynamic properties (e.g.

Method Detail

isAtomic

public boolean isAtomic()

Returns true if objects of this class are treated as atomic objects which have no properties of their own. For example, java.lang.String and java.lang.Number are atomic.

isDynamic

public boolean isDynamic()

Returns true if the objects of this class have dynamic properties (e.g. java.util.Map). If this method returns true, getPropertyDescriptors should return null and getDynamicPropertyHandlerClass should return a valid class name. An object cannot have both static and dynamic properties at the same time.

getPropertyDescriptors

public java.beans.PropertyDescriptor[] getPropertyDescriptors()

Returns a list of property descriptors for the beans described by this bean info object. Returns null for atomic beans.

getPropertyDescriptor

public java.beans.PropertyDescriptor getPropertyDescriptor(java.lang.String propertyName)

Returns a PropertyDescriptor for the specified name or null if there is no such property.

getDynamicPropertyHandlerClass

public java.lang.Class getDynamicPropertyHandlerClass()

For dynamic objects, returns the class implementing the DynamicPropertyHandler interface. That class can be used to access dynamic properties.