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Posted to user@commons.apache.org by BMS TechSupport JP <te...@bluemartini.com> on 2004/08/23 11:11:34 UTC
[BeanUtils] Where is BeanComparator?
Hi,
BeanUtils javadoc said
http://jakarta.apache.org/commons/beanutils/commons-beanutils-1.7.0/docs/api
/org/apache/commons/beanutils/package-summary.html#collections
Comparing Beans
org.apache.commons.beanutils.BeanComparator is a Comparator implementation
that compares beans based on a shared property value.
But I cannot find the Comparator implementation class in the package..??
regards,
Koji
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Re: [BeanUtils] Where is BeanComparator?
Posted by José Antonio Pérez Testa <ja...@indra.es>.
That's all!
import java.util.Comparator;
....
public class BeanComparator implements Comparator, Serializable {
......
/**
* Compare two JavaBeans by their shared property.
*
* @param o1 Object The first bean to get data from to compare against
* @param o2 Object The second bean to get data from to compare
* @return int negative or positive based on order
*/
public int compare( Object o1, Object o2 ) {
try {
Object value1 = PropertyUtils.getProperty( o1, property );
Object value2 = PropertyUtils.getProperty( o2, property );
return comparator.compare( value1, value2 );
}
catch ( Exception e ) {
throw new ClassCastException( e.toString() );
}
}
....
BMS TechSupport JP wrote:
>Hi,
>
>BeanUtils javadoc said
>
>http://jakarta.apache.org/commons/beanutils/commons-beanutils-1.7.0/docs/api
>/org/apache/commons/beanutils/package-summary.html#collections
>Comparing Beans
>org.apache.commons.beanutils.BeanComparator is a Comparator implementation
>that compares beans based on a shared property value.
>
>But I cannot find the Comparator implementation class in the package..??
>
>regards,
>
>Koji
>
>
>
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>To unsubscribe, e-mail: commons-user-unsubscribe@jakarta.apache.org
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>
>
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Re: [BeanUtils] Where is BeanComparator?
Posted by robert burrell donkin <ro...@blueyonder.co.uk>.
hi
the bean comparator class is in the beanutils-bean-collections jar
(rather than the code).
- robert
On 23 Aug 2004, at 10:11, BMS TechSupport JP wrote:
> Hi,
>
> BeanUtils javadoc said
>
> http://jakarta.apache.org/commons/beanutils/commons-beanutils-1.7.0/
> docs/api
> /org/apache/commons/beanutils/package-summary.html#collections
> Comparing Beans
> org.apache.commons.beanutils.BeanComparator is a Comparator
> implementation
> that compares beans based on a shared property value.
>
> But I cannot find the Comparator implementation class in the
> package..??
>
> regards,
>
> Koji
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: commons-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: commons-user-help@jakarta.apache.org
>
>
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