org.glassfish.jersey.message.internal

Class MessageBodyFactory.DeclarationDistanceComparator<T>

java.lang.Object

org.glassfish.jersey.message.internal.MessageBodyFactory.DeclarationDistanceComparator<T>

Type Parameters:

T - common super-type used for computing the declaration distance and comparing instances.

All Implemented Interfaces:

java.util.Comparator<T>

Enclosing class:

MessageBodyFactory

private static class MessageBodyFactory.DeclarationDistanceComparator<T>
extends java.lang.Object
implements java.util.Comparator<T>

Compares 2 instances implementing/inheriting the same super-type and returns which of the two instances has the super-type declaration closer in it's inheritance hierarchy tree.

The comparator is optimized to cache results of the previous distance declaration computations.

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.Class<T>	declared
private java.util.Map<java.lang.Class,java.lang.Integer>	distanceMap

Constructor Summary

Constructors

Constructor and Description
DeclarationDistanceComparator(java.lang.Class<T> declared)

Method Summary

Modifier and Type	Method and Description
int	compare(T o1, T o2)
private int	getDistance(T t)

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

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

declared

private final java.lang.Class<T> declared

distanceMap

private final java.util.Map<java.lang.Class,java.lang.Integer> distanceMap

Constructor Detail

DeclarationDistanceComparator

DeclarationDistanceComparator(java.lang.Class<T> declared)

Method Detail

compare

public int compare(T o1,
                   T o2)

Specified by:

compare in interface java.util.Comparator<T>

getDistance

private int getDistance(T t)