com.github.robtimus.net.ip

Class AbstractIPRange<IP extends IPAddress<IP>>

java.lang.Object

com.github.robtimus.net.ip.AbstractIPRange<IP>

Type Parameters:

IP - The type of IP address in the range.

All Implemented Interfaces:

IPRange<IP>, Iterable<IP>, Collection<IP>

Direct Known Subclasses:

AbstractIPv4Range, AbstractIPv6Range, Subnet

public abstract class AbstractIPRange<IP extends IPAddress<IP>>
extends Object
implements IPRange<IP>

A skeleton implementation of the IPRange interface.

Author:

Rob Spoor

Constructor Summary

Constructors

Constructor and Description
AbstractIPRange()

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj) Compares the specified object with this IP range for equality.
int	hashCode() Returns the hash code value for this IP range.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.robtimus.net.ip.IPRange

add, addAll, clear, contains, contains, containsAll, forEach, from, isEmpty, iterator, remove, removeAll, removeIf, retainAll, size, to, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, spliterator, stream

Constructor Detail

AbstractIPRange

public AbstractIPRange()

Method Detail

equals

public boolean equals(Object obj)

Compares the specified object with this IP range for equality. Returns true if and only if the specified object is also an IP range, and both IP ranges have the same from and to addresses. This implies that both IP ranges contain the same IP addresses.

More formally, two IP ranges range1 and range2 are equal if

 range1.from().equals(range2.from()) && range1.to().equals(range2.to())

This implementation first checks if the given object is this IP range; if so it returns true. If not, it checks if the given object is another IP range. If so, it returns from().equals(range.from()) && to().equals(range.to()) according to the contract of IPRange.equals(Object).

Specified by:

equals in interface IPRange<IP extends IPAddress<IP>>

Specified by:

equals in interface Collection<IP extends IPAddress<IP>>

Overrides:

equals in class Object

hashCode

public int hashCode()

Returns the hash code value for this IP range. The hash code of an IP range is defined to be the result of the following calculation:

 from().hashCode() * 31 + to().hashCode()

This ensures that range1.equals(range2) implies that range1.hashCode() == range2.hashCode() for any two IP ranges range1 and range2, as required by the general contract of Object.hashCode().

This implementation returns from().hashCode() * 31 + to().hashCode() according to the contract of IPRange.hashCode().

Specified by:

hashCode in interface IPRange<IP extends IPAddress<IP>>

Specified by:

hashCode in interface Collection<IP extends IPAddress<IP>>

Overrides:

hashCode in class Object