freemarker.ext.beans2
Class ObjectFeatures<T>

java.lang.Object
  freemarker.ext.beans2.ObjectFeatures<T>

All Implemented Interfaces:

Features<T>

public class ObjectFeatures<T>
extends java.lang.Object
implements Features<T>

Determine an object's features for a particular class. Object features include a class's properties, as well as all methods and fields -- static or non-static. Methods are pre-sorted based on arguments and class hierarchy to allow fast resolution of overloaded methods.

Since:

1.9

Version:

$Id: ObjectFeatures.java 1067 2011-06-06 10:55:28Z run2000 $

Author:

Nicholas Cull

Constructor Summary

ObjectFeatures(java.lang.Class<T> clazz)
Create object features for a given class.

Method Summary

T[]	getEnumValues() Get an array of all enumeration values for the enum class.
java.lang.reflect.Field	getField(java.lang.String name) Get a Field object for the given name.
java.util.List<java.lang.reflect.Method>	getMethods(java.lang.String name) Get a list of all methods for the given name.
java.beans.PropertyDescriptor	getProperty(java.lang.String name) Get a PropertyDescriptor object for the given name.
java.lang.String	toString() Returns a string representation of the object.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ObjectFeatures

public ObjectFeatures(java.lang.Class<T> clazz)
               throws java.beans.IntrospectionException

Create object features for a given class. Pre-cache any property, method, and field information at construction time to allow fast lookup of the class's features.

Parameters:

clazz - the class to be introspected

Throws:

java.beans.IntrospectionException - there was a problem introspecting the given class

Method Detail

getMethods

public java.util.List<java.lang.reflect.Method> getMethods(java.lang.String name)

Description copied from interface: Features

Get a list of all methods for the given name. There may be several overloaded methods for a given name.

Specified by:

getMethods in interface Features<T>

Parameters:

name - the name of the method to be retrieved

Returns:

a List of Method objects for the given name

getProperty

public java.beans.PropertyDescriptor getProperty(java.lang.String name)

Description copied from interface: Features

Get a PropertyDescriptor object for the given name. Property names are unique for a given class, so no overloading is required.

Specified by:

getProperty in interface Features<T>

Parameters:

name - the name of the property to be retrieved

Returns:

a PropertyDescriptor for the given name

getField

public java.lang.reflect.Field getField(java.lang.String name)

Description copied from interface: Features

Get a Field object for the given name. Field names are unique for a given class, so no overloading is required.

Specified by:

getField in interface Features<T>

Parameters:

name - the name of the field to be retrieved

Returns:

a Field object for the given name

getEnumValues

public T[] getEnumValues()

Description copied from interface: Features

Get an array of all enumeration values for the enum class.

Specified by:

getEnumValues in interface Features<T>

Returns:

an array of all enumerated values for this class, or null if the class is not an enum

toString

public java.lang.String toString()

Returns a string representation of the object.

Overrides:

toString in class java.lang.Object

Returns:

a string representation of the object.