org.openide.nodes

Class PropertySupport.Reflection<T>

java.lang.Object

java.beans.FeatureDescriptor

org.openide.nodes.Node.Property<T>

org.openide.nodes.PropertySupport.Reflection<T>

Enclosing class:

PropertySupport<T>

public static class PropertySupport.Reflection<T>
extends Node.Property<T>

Support for properties from Java Reflection. Since 7.19, the FeatureDescriptor.getName() will be set automatically.

Field Summary

Fields

Modifier and Type	Field and Description
protected Object	instance Instance of a bean.

Constructor Summary

Constructors

Constructor and Description
Reflection(Object instance, Class<T> valueType, Method getter, Method setter) Create a support with method objects specified.
Reflection(Object instance, Class<T> valueType, String property) Create a support based on the property name.
Reflection(Object instance, Class<T> valueType, String getter, String setter) Create a support with methods specified by name.

Method Summary

Modifier and Type	Method and Description
boolean	canRead() Test whether the property is readable.
boolean	canWrite() Test whether the property is writable.
PropertyEditor	getPropertyEditor() Get a property editor for this property.
T	getValue() Get the value.
void	setPropertyEditorClass(Class<? extends PropertyEditor> clazz) Set the property editor explicitly.
void	setValue(T val) Set the value.

Methods inherited from class org.openide.nodes.Node.Property

equals, getHtmlDisplayName, getValueType, hashCode, isDefaultValue, restoreDefaultValue, supportsDefaultValue

Methods inherited from class java.beans.FeatureDescriptor

attributeNames, getDisplayName, getName, getShortDescription, getValue, isExpert, isHidden, isPreferred, setDisplayName, setExpert, setHidden, setName, setPreferred, setShortDescription, setValue, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

instance

protected Object instance

Instance of a bean.

Constructor Detail

Reflection

public Reflection(Object instance,
                  Class<T> valueType,
                  Method getter,
                  Method setter)

Create a support with method objects specified. The methods must be public.

Parameters:

instance - (Bean) object to work on

valueType - type of the property

getter - getter method, can be null

setter - setter method, can be null

Throws:

IllegalArgumentException - if the methods are not public

Reflection

public Reflection(Object instance,
                  Class<T> valueType,
                  String getter,
                  String setter)
           throws NoSuchMethodException

Create a support with methods specified by name. The instance class will be examined for the named methods. But if the instance class is not public, the nearest public superclass will be used instead, so that the getters and setters remain accessible.

Parameters:

instance - (Bean) object to work on

valueType - type of the property

getter - name of getter method, can be null

setter - name of setter method, can be null

Throws:

NoSuchMethodException - if the getter or setter methods cannot be found

Reflection

public Reflection(Object instance,
                  Class<T> valueType,
                  String property)
           throws NoSuchMethodException

Create a support based on the property name. The getter and setter methods are constructed by capitalizing the first letter in the name of propety and prefixing it with get and set, respectively.

Parameters:

instance - object to work on

valueType - type of the property

property - name of property

Throws:

NoSuchMethodException - if the getter or setter methods cannot be found

Method Detail

canRead

public boolean canRead()

Description copied from class: Node.Property

Test whether the property is readable.

Specified by:

canRead in class Node.Property<T>

Returns:

true if it is

getValue

public T getValue()
           throws IllegalAccessException,
                  IllegalArgumentException,
                  InvocationTargetException

Description copied from class: Node.Property

Get the value.

Specified by:

getValue in class Node.Property<T>

Returns:

the value of the property

Throws:

IllegalAccessException - cannot access the called method

InvocationTargetException - an exception during invocation

IllegalArgumentException

canWrite

public boolean canWrite()

Description copied from class: Node.Property

Test whether the property is writable.

Specified by:

canWrite in class Node.Property<T>

Returns:

true if the read of the value is supported

setValue

public void setValue(T val)
              throws IllegalAccessException,
                     IllegalArgumentException,
                     InvocationTargetException

Description copied from class: Node.Property

Set the value.

Specified by:

setValue in class Node.Property<T>

Parameters:

val - the new value of the property

Throws:

IllegalAccessException - cannot access the called method

IllegalArgumentException - wrong argument

InvocationTargetException - an exception during invocation

getPropertyEditor

public PropertyEditor getPropertyEditor()

Description copied from class: Node.Property

Get a property editor for this property. The default implementation uses standard Java PropertyEditorManager. If a property editor is found, its instance is cached using SoftReference. Caching happens per thread - e.g. it is guaranteed that multiple threads accessing the editor will get different instance.

Overrides:

getPropertyEditor in class Node.Property<T>

Returns:

the property editor, or null if there is no editor

setPropertyEditorClass

public void setPropertyEditorClass(Class<? extends PropertyEditor> clazz)

Set the property editor explicitly.

Parameters:

clazz - class type of the property editor