Sorry, my English is poor, I try my best to make everyone understand what I wrote.
In fact, I want to ask : is it possible to define one <field-handler/> and use it in everywhere ? Joey > -----邮件原件----- > 发件人: avner21J [mailto:[email protected]] > 发送时间: 2011年3月9日 17:28 > 收件人: [email protected] > 主题: Re: [castor-user] how to reuse the field-handler defined in mapping file? > > > Joey, > > How does this post of yours relate to the original problem? > > Don't clutter with unrelated posts and make it difficult for others to > understand. > > > > 吕晓一 wrote: > > > > Hi, my project use Castor, and I have one question. > > > > I created a field handler named TimeHander.java like this: > > > > public class TimeHandler extends GeneralizedFieldHandler { > > > > private SimpleDateFormat formatter = new > SimpleDateFormat("yyyyMMdd"); > > > > public TimeHandler() { > > super(); > > } > > > > public void setConfiguration(Properties config) throws > > ValidityException { > > String pattern = config.getProperty("date-format"); > > if (pattern == null) { > > throw new ValidityException("need parameter > \"date-format\""); > > } > > try { > > formatter = new SimpleDateFormat(pattern); > > } catch (IllegalArgumentException e) { > > throw new ValidityException("the parameter \"" + pattern + > "\" > > invalid"); > > } > > } > > > > > > public Object convertUponGet(Object value) { > > if (value == null) return null; > > Date date = (Date) value; > > return formatter.format(date); > > > > } > > > > public Object convertUponSet(Object value) { > > Date date = null; > > try { > > if (StringUtils.isEmpty((String) value)) { > > return date; > > } > > date = formatter.parse((String) value); > > } > > catch (ParseException px) { > > throw new IllegalArgumentException(px.getMessage()); > > } > > return date; > > > > } > > > > public Class getFieldType() { > > return Date.class; > > } > > > > > > public Object newInstance(Object parent) throws IllegalStateException > > { > > return null; > > } > > } > > > > > > and my Java bean has two java.util.Date type fields, > > to make Castor work correctly, > > I have to define two <field-handler/> in mapping file like this: > > ... > > ... > > <field-handler name="timeHandler1" class="TimeHandler"> > > > > </field-handler> > > <field-handler name="timeHandler2" class="TimeHandler"> > > > > </field-handler> > > ... > > ... > > <class name="Mybean "> > > <map-to xml="MyBean"/> > > <field name="time1" type="java.lang.String" handler="timeHandler1"> > > <bind-xml name="Time1" node="element"/> > > </field> > > <field name="time2" type="java.lang.String" handler="timeHandler2"> > > <bind-xml name="Time2" node="element"/> > > </field> > > </class> > > .... > > > > that's mean: one field , one <field-handler/> , even the same processing > > logic. > > > > But my project has dozens of Java beans, and has dozens of Date-type > > fileds, > > so, I have to define dozens of <field-handler/>, it is so terrible.... > > > > Is there any advices? > > > > Regards > > > > Joey > > > > 2011-3-9 > > > > > > > > > > -- > View this message in context: > http://old.nabble.com/UnmarshalException-for-xml-created-by-Castor-Marshal > ler-tp31097277p31104647.html > Sent from the Castor - User mailing list archive at Nabble.com. > > > --------------------------------------------------------------------- > To unsubscribe from this list, please visit: > > http://xircles.codehaus.org/manage_email >
