> from: Gary Gregory <[EMAIL PROTECTED]>
> I need to exclude a given field with
> ToStringBuilder.reflectionToString(Object).
> The Object I pass in is a javax.jms.Message which is a JMS abstract
> interface which can be implemented with all sorts of fields. I know I just
> do not want "messageText".
>
> My current implementation is nasty and does not feel right since I have to
> use a ToStringStyle:
>
> private Object getMessageDescription(Message message) {
> class TempToStringStyle extends ToStringStyle {
> public void append(StringBuffer buffer, String
> fieldName, Object value, Boolean fullDetail) {
> if ("messageText".equals(fieldName) ==
> false) {
> super.append(buffer, fieldName, value, fullDetail);
> }
> }
> }
> return ToStringBuilder.reflectionToString(message, new
> TempToStringStyle(), false);
> }
>
>
> I could imagine doing something like:
>
> ToStringBuilder builder = new ToStringBuilder(message);
> builder.remove(messageText);
> return builder.toString();
An interesting requirement. This last solution is incomplete as it doesn't use
reflectionToString. A ToStringStyle can be passed in to reflectionToString though, so
your basic solution seems sound.
Perhaps what is needed is a ToStringStyle decorator (like the collections unmodifiable
and synchronized decorators) that blocks certain field names? Essentially this would
add your temporary tostringstyle to [lang].
Stephen
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