Package com.singularsys.extensions.field

Class FieldComparator

java.lang.Object

com.singularsys.extensions.field.FieldComparator

All Implemented Interfaces:

Serializable, Comparator<Object>

public class FieldComparator
extends Object
implements Comparator<Object>, Serializable

A comparator which works using a field. If the field is an AbstractComparativeField it uses its cmp method, otherwise first the arguments are tested for equality using the eq method and if non equal the lt is used.

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
FieldComparator(FieldI fm)
FieldComparator(FieldI fm, boolean increasing)	Constructor

Method Summary

Modifier and Type	Method	Description
int	compare(Object o1, Object o2)

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, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

FieldComparator

public FieldComparator(FieldI fm,
 boolean increasing)

Constructor

Parameters:

fm - field used to make the comparison

increasing - whether to sort in an increasing or decreasing order

FieldComparator

public FieldComparator(FieldI fm)

Method Details

compare

public int compare(Object o1,
 Object o2)

Specified by:

compare in interface Comparator<Object>