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PropertySupport.Reflection (NetBeans APIs) - NetBeans API Javadoc 4.1.0

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org.openide.nodes
Class PropertySupport.Reflection

java.lang.Object
  java.beans.FeatureDescriptor
      org.openide.nodes.Node.Property
          org.openide.nodes.PropertySupport.Reflection

Enclosing class:

PropertySupport

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public static class PropertySupport.Reflection

extends Node.Property

Support for properties from Java Reflection.

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Field Summary
protected  Object	instance           Instance of a bean.

 

Constructor Summary

PropertySupport.Reflection(Object instance, Class valueType, Method getter, Method setter)           Create a support with method objects specified.

PropertySupport.Reflection(Object instance, Class valueType, String property)           Create a support based on the property name.

PropertySupport.Reflection(Object instance, Class valueType, String getter, String setter)           Create a support with methods specified by name.

 

Method Summary
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.
Object	getValue()           Get the value.
void	setPropertyEditorClass(Class clazz)           Set the property editor explicitly.
void	setValue(Object 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

 

Methods inherited from class java.lang.Object

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

 

Field Detail

instance

protected Object instance

Instance of a bean.

Constructor Detail

PropertySupport.Reflection

public PropertySupport.Reflection(Object instance,
                                  Class 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

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PropertySupport.Reflection

public PropertySupport.Reflection(Object instance,
                                  Class 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

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PropertySupport.Reflection

public PropertySupport.Reflection(Object instance,
                                  Class 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

Returns:

true if it is

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getValue

public Object getValue()
                throws IllegalAccessException,
                       IllegalArgumentException,
                       InvocationTargetException

Description copied from class: Node.Property

Get the value.

Specified by:

getValue in class Node.Property

Returns:

the value of the property

Throws:

IllegalAccessException - cannot access the called method

InvocationTargetException - an exception during invocation

IllegalArgumentException

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canWrite

public boolean canWrite()

Description copied from class: Node.Property

Test whether the property is writable.

Specified by:

canWrite in class Node.Property

Returns:

true if the read of the value is supported

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setValue

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

Description copied from class: Node.Property

Set the value.

Specified by:

setValue in class Node.Property

Parameters:

val - the new value of the property

Throws:

InvocationTargetException - an exception during invocation

IllegalAccessException - cannot access the called method

IllegalArgumentException - wrong argument

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getPropertyEditor

public PropertyEditor getPropertyEditor()

Description copied from class: Node.Property

Get a property editor for this property. The default implementation tries to use PropertyEditorManager.

Overrides:

getPropertyEditor in class Node.Property

Returns:

the property editor, or null if there is no editor

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setPropertyEditorClass

public void setPropertyEditorClass(Class clazz)

Set the property editor explicitly.

Parameters:

clazz - class type of the property editor

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