com.generationjava.compare
Class BeanComparator

java.lang.Object
  |
  +--com.generationjava.compare.BeanComparator

All Implemented Interfaces:

java.util.Comparator

public class BeanComparator

extends java.lang.Object

implements java.util.Comparator

A Comparator for JavaBeans. Provide the name of the property to be compared with, and BeanComparator will deal with finding the property and comparing on it using ObjectComparator. Some examples are: "person" -> getPerson() "person.name" -> getPerson().getName() "person.addressMap.fred" -> getPerson().getAddressMap().get("fred") "person.phone[3]" -> getPerson().getPhone()[3] and getPerson().getPhone().get(3) (array and List)

Constructor Summary

BeanComparator(java.lang.String attrib)

Method Summary

boolean	caching() Is caching on?
boolean	caching(boolean b) Turn on caching.
int	compare(java.lang.Object o1, java.lang.Object o2)
static BeanComparator	getInstance(java.lang.String attrib) Get a BeanComparator for the specified property.
void	precompile(java.util.Collection col) Do a Schwartzian transform precompile of all the values.
void	setComparator(java.util.Comparator comp)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

equals

Constructor Detail

BeanComparator

public BeanComparator(java.lang.String attrib)

Method Detail

getInstance

public static BeanComparator getInstance(java.lang.String attrib)

Get a BeanComparator for the specified property.

setComparator

public void setComparator(java.util.Comparator comp)

precompile

public void precompile(java.util.Collection col)

Do a Schwartzian transform precompile of all the values. Pattern from Perl.

caching

public boolean caching(boolean b)

Turn on caching. Akin to Perl's Orcish maneuver. Recalling this method will reset caching.

caching

public boolean caching()

Is caching on?

compare

public int compare(java.lang.Object o1,
                   java.lang.Object o2)

Specified by:

compare in interface java.util.Comparator