beandescriptor.java

来自「《移动Agent技术》一书的所有章节源代码。」· Java 代码 · 共 80 行

/*
 * @(#)BeanDescriptor.java	1.10 96/12/18  
 * 
 * Copyright (c) 1996 Sun Microsystems, Inc. All Rights Reserved.
 * 
 * This software is the confidential and proprietary information of Sun
 * Microsystems, Inc. ("Confidential Information").  You shall not
 * disclose such Confidential Information and shall use it only in
 * accordance with the terms of the license agreement you entered into
 * with Sun.
 * 
 * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF THE
 * SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 * PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING
 * THIS SOFTWARE OR ITS DERIVATIVES.
 * 
 * CopyrightVersion bdk_beta
 * 
 */

package java.beans;

/**
 * A BeanDescriptor provides global information about a "bean",
 * including its Java class, its displayName, etc.
 * <p>
 * This is one of the kinds of descriptor returned by a BeanInfo object,
 * which also returns descriptors for properties, method, and events.
 */

public class BeanDescriptor extends FeatureDescriptor {

    /**
     * Create a BeanDescriptor for a bean that doesn't have a customizer.
     * @param beanClass  The Class object of the Java class that implements
     *		the bean.  For example sun.beans.OurButton.class.
     */
    public BeanDescriptor(Class beanClass) {
	this(beanClass, null);
    }

    /**
     * Create a BeanDescriptor for a bean that has a customizer.
     * @param beanClass  The Class object of the Java class that implements
     *		the bean.  For example sun.beans.OurButton.class.
     * @param customizerClass  The Class object of the Java class that implements
     *		the bean's Customizer.  For example sun.beans.OurButtonCustomizer.class.
     */
    public BeanDescriptor(Class beanClass, Class customizerClass) {
	this.beanClass = beanClass;
	this.customizerClass = customizerClass;
	String name = beanClass.getName();
	while (name.indexOf('.') >= 0) {
	    name = name.substring(name.indexOf('.')+1);
	}
	setName(name);
    }

    /**
     * @return The Class object for the bean.
     */
    public Class getBeanClass() {
	return beanClass;
    }

    /**
     * @return The Class object for the bean's customizer.  This may
     * be null if the bean doesn't have a customizer.
     */
    public Class getCustomizerClass() {
	return customizerClass;
    }

    private Class beanClass;
    private Class customizerClass;

}