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Java in a Nutshell

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The java.beans Package

23.4 java.beans.Customizer (JDK 1.1)

The Customizer interface specifies the methods that must be defined by any class designed to customize a Java bean. In addition to implementing this interface, a customizer class must be a subclass of java.awt.Component, and it must have a constructor that takes no arguments, so that it can be instantiated by an application builder.

Customizer classes are typically used by a complex Java bean to allow the user to easily configure the bean, and to provide an alternative to a simple list of properties and their values. If a customizer class is defined for a Java bean, it must be associated with the bean through a BeanDescriptor object returned by a BeanInfo class for the bean. Note that while a Customizer class is created by the author of a bean, that class is only instantiated and used by application builders and similar tools.

After a Customizer class is instantiated, its setObject() method is invoked once to specify the bean object that it is to customize. The addPropertyChangeListener() and removePropertyChangeListener() methods may be called to register and de-register PropertyChangeListener objects. The Customizer should send a PropertyChangeEvent to all registered listeners any time it changes a property of the bean it is customizing.

public abstract interface Customizer {
    // Public Instance Methods
            public abstract void addPropertyChangeListener(PropertyChangeListener listener);
            public abstract void removePropertyChangeListener(PropertyChangeListener listener);
            public abstract void setObject(Object bean);

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