jdk.net.Inet4Address
This class represents an Internet Protocol version 4 (IPv4) address. Defined by RFC 790: Assigned Numbers,
RFC 1918: Address Allocation for Private Internets, and RFC 2365: Administratively Scoped IP Multicast
Textual representation of IP addresses
Textual representation of IPv4 address used as input to methods takes one of the following forms:
d.d.d.d d.d.d d.d d
When four parts are specified, each is interpreted as a byte of data and assigned, from left to right, to the four bytes of an IPv4 address.
When a three part address is specified, the last part is interpreted as a 16-bit quantity and placed in the right most two bytes of the network address. This makes the three part address format convenient for specifying Class B net- work addresses as 128.net.host.
When a two part address is supplied, the last part is interpreted as a 24-bit quantity and placed in the right most three bytes of the network address. This makes the two part address format convenient for specifying Class A network addresses as net.host.
When only one part is given, the value is stored directly in the network address without any byte rearrangement.
For methods that return a textual representation as output value, the first form, i.e. a dotted-quad string, is used.
The Scope of a Multicast Address
Historically the IPv4 TTL field in the IP header has doubled as a multicast scope field: a TTL of 0 means node-local, 1 means link-local, up through 32 means site-local, up through 64 means region-local, up through 128 means continent-local, and up through 255 are global. However, the administrative scoping is preferred. Please refer to RFC 2365: Administratively Scoped IP Multicast
This class represents an Internet Protocol version 4 (IPv4) address. Defined by RFC 790: Assigned Numbers, RFC 1918: Address Allocation for Private Internets, and RFC 2365: Administratively Scoped IP Multicast Textual representation of IP addresses Textual representation of IPv4 address used as input to methods takes one of the following forms: d.d.d.d d.d.d d.d d When four parts are specified, each is interpreted as a byte of data and assigned, from left to right, to the four bytes of an IPv4 address. When a three part address is specified, the last part is interpreted as a 16-bit quantity and placed in the right most two bytes of the network address. This makes the three part address format convenient for specifying Class B net- work addresses as 128.net.host. When a two part address is supplied, the last part is interpreted as a 24-bit quantity and placed in the right most three bytes of the network address. This makes the two part address format convenient for specifying Class A network addresses as net.host. When only one part is given, the value is stored directly in the network address without any byte rearrangement. For methods that return a textual representation as output value, the first form, i.e. a dotted-quad string, is used. The Scope of a Multicast Address Historically the IPv4 TTL field in the IP header has doubled as a multicast scope field: a TTL of 0 means node-local, 1 means link-local, up through 32 means site-local, up through 64 means region-local, up through 128 means continent-local, and up through 255 are global. However, the administrative scoping is preferred. Please refer to RFC 2365: Administratively Scoped IP Multicast
any-local-address?clj
(any-local-address? this)Utility routine to check if the InetAddress in a wildcard address.
returns: a boolean indicating if the Inetaddress is
a wildcard address. - boolean
Utility routine to check if the InetAddress in a wildcard address.
returns: a boolean indicating if the Inetaddress is
a wildcard address. - `boolean`equalsclj
(equals this obj)Compares this object against the specified object. The result is true if and only if the argument is not null and it represents the same IP address as this object.
Two instances of InetAddress represent the same IP address if the length of the byte arrays returned by getAddress is the same for both, and each of the array components is the same for the byte arrays.
obj - the object to compare against. - java.lang.Object
returns: true if the objects are the same;
false otherwise. - boolean
Compares this object against the specified object.
The result is true if and only if the argument is
not null and it represents the same IP address as
this object.
Two instances of InetAddress represent the same IP
address if the length of the byte arrays returned by
getAddress is the same for both, and each of the
array components is the same for the byte arrays.
obj - the object to compare against. - `java.lang.Object`
returns: true if the objects are the same;
false otherwise. - `boolean`get-addressclj
(get-address this)Returns the raw IP address of this InetAddress object. The result is in network byte order: the highest order byte of the address is in getAddress()[0].
returns: the raw IP address of this object. - byte[]
Returns the raw IP address of this InetAddress object. The result is in network byte order: the highest order byte of the address is in getAddress()[0]. returns: the raw IP address of this object. - `byte[]`
get-host-addressclj
(get-host-address this)Returns the IP address string in textual presentation form.
returns: the raw IP address in a string format. - java.lang.String
Returns the IP address string in textual presentation form. returns: the raw IP address in a string format. - `java.lang.String`
hash-codeclj
(hash-code this)Returns a hashcode for this IP address.
returns: a hash code value for this IP address. - int
Returns a hashcode for this IP address. returns: a hash code value for this IP address. - `int`
link-local-address?clj
(link-local-address? this)Utility routine to check if the InetAddress is an link local address.
returns: a boolean indicating if the InetAddress is
a link local address; or false if address is not a link local unicast address. - boolean
Utility routine to check if the InetAddress is an link local address. returns: a boolean indicating if the InetAddress is a link local address; or false if address is not a link local unicast address. - `boolean`
loopback-address?clj
(loopback-address? this)Utility routine to check if the InetAddress is a loopback address.
returns: a boolean indicating if the InetAddress is
a loopback address; or false otherwise. - boolean
Utility routine to check if the InetAddress is a loopback address. returns: a boolean indicating if the InetAddress is a loopback address; or false otherwise. - `boolean`
mc-global?clj
(mc-global? this)Utility routine to check if the multicast address has global scope.
returns: a boolean indicating if the address has
is a multicast address of global scope, false if it is not
of global scope or it is not a multicast address - boolean
Utility routine to check if the multicast address has global scope.
returns: a boolean indicating if the address has
is a multicast address of global scope, false if it is not
of global scope or it is not a multicast address - `boolean`mc-link-local?clj
(mc-link-local? this)Utility routine to check if the multicast address has link scope.
returns: a boolean indicating if the address has
is a multicast address of link-local scope, false if it is not
of link-local scope or it is not a multicast address - boolean
Utility routine to check if the multicast address has link scope.
returns: a boolean indicating if the address has
is a multicast address of link-local scope, false if it is not
of link-local scope or it is not a multicast address - `boolean`mc-node-local?clj
(mc-node-local? this)Utility routine to check if the multicast address has node scope.
returns: a boolean indicating if the address has
is a multicast address of node-local scope, false if it is not
of node-local scope or it is not a multicast address - boolean
Utility routine to check if the multicast address has node scope.
returns: a boolean indicating if the address has
is a multicast address of node-local scope, false if it is not
of node-local scope or it is not a multicast address - `boolean`mc-org-local?clj
(mc-org-local? this)Utility routine to check if the multicast address has organization scope.
returns: a boolean indicating if the address has
is a multicast address of organization-local scope,
false if it is not of organization-local scope
or it is not a multicast address - boolean
Utility routine to check if the multicast address has organization scope.
returns: a boolean indicating if the address has
is a multicast address of organization-local scope,
false if it is not of organization-local scope
or it is not a multicast address - `boolean`mc-site-local?clj
(mc-site-local? this)Utility routine to check if the multicast address has site scope.
returns: a boolean indicating if the address has
is a multicast address of site-local scope, false if it is not
of site-local scope or it is not a multicast address - boolean
Utility routine to check if the multicast address has site scope.
returns: a boolean indicating if the address has
is a multicast address of site-local scope, false if it is not
of site-local scope or it is not a multicast address - `boolean`multicast-address?clj
(multicast-address? this)Utility routine to check if the InetAddress is an IP multicast address. IP multicast address is a Class D address i.e first four bits of the address are 1110.
returns: a boolean indicating if the InetAddress is
an IP multicast address - boolean
Utility routine to check if the InetAddress is an IP multicast address. IP multicast address is a Class D address i.e first four bits of the address are 1110. returns: a boolean indicating if the InetAddress is an IP multicast address - `boolean`
site-local-address?clj
(site-local-address? this)Utility routine to check if the InetAddress is a site local address.
returns: a boolean indicating if the InetAddress is
a site local address; or false if address is not a site local unicast address. - boolean
Utility routine to check if the InetAddress is a site local address. returns: a boolean indicating if the InetAddress is a site local address; or false if address is not a site local unicast address. - `boolean`
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