51 lines
1.5 KiB
Java
51 lines
1.5 KiB
Java
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Bean util
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package com.ack.util;
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import java.beans.BeanInfo;
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import java.beans.Introspector;
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import java.beans.PropertyDescriptor;
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import java.lang.reflect.Method;
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/**
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* utility class for dealing with java beans
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*/
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public class BeanUtil {
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/**
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* dumps the properties names and values of a bean
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* into a string
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* @param bean the JavaBean to be intropected
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* @return String a dump of the property names and values
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*/
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public static String toString( Object bean ) {
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StringBuffer buf = new StringBuffer();
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if( bean != null ) {
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try {
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BeanInfo binfo = Introspector.getBeanInfo( bean.getClass() );
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PropertyDescriptor[] properties = binfo.getPropertyDescriptors();
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if( properties != null ) {
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for( int i = 0; i < properties.length; i++ ) {
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Method readMethod = properties[i].getReadMethod();
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if( readMethod != null ) {
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buf.append( properties[i].getName() );
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buf.append( " = " );
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Object obj = readMethod.invoke( bean, null );
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if( obj != null ) {
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buf.append( obj.toString() );
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}
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else {
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buf.append( "<empty>" );
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}
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buf.append( "\n" );
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}
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}
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}
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}
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catch( Exception e ) {
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// ignore exceptions thrown, this is a development aid
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}
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}
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return buf.toString();
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}
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}
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