com.atomicleopard.expressive.comparator

Class ComparatorBuilder<T>

java.lang.Object

com.atomicleopard.expressive.comparator.ComparatorBuilder<T>

Type Parameters:

T -

All Implemented Interfaces:

Comparator<T>

public class ComparatorBuilder<T>
extends Object
implements Comparator<T>

A ComparatorBuilder allows the creation of a comparator for a given java bean type based on the values of the properties within the bean.

In the resulting comparator, properties are compared using the specified rules in the order they are supplied to the builder. Evaluation continues until a non-zero value occurs on a property, or all properties have been compared.

See Also:

Expressive.Comparators#compare(Class)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ComparatorBuilder.CompareUsing<S>

Field Summary

Fields

Modifier and Type	Field and Description
protected LinkedHashMap<String,Comparator<?>>	propertyComparators

Constructor Summary

Constructors

Constructor and Description
ComparatorBuilder(Class<T> type)
ComparatorBuilder(Class<T> type, boolean noCache)

Method Summary

Methods

Modifier and Type	Method and Description
int	compare(T o1, T o2)
<S> ComparatorBuilder.CompareUsing<S>	on(String property)
protected void	put(String property, Comparator<?> comparator)

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

Field Detail

propertyComparators

protected LinkedHashMap<String,Comparator<?>> propertyComparators

Constructor Detail

ComparatorBuilder

public ComparatorBuilder(Class<T> type)

ComparatorBuilder

public ComparatorBuilder(Class<T> type,
                 boolean noCache)

Method Detail

put

protected void put(String property,
       Comparator<?> comparator)

on

public <S> ComparatorBuilder.CompareUsing<S> on(String property)

compare

public int compare(T o1,
          T o2)

Specified by:

compare in interface Comparator<T>