Class InetAddressResolver.LookupPolicy 
java.lang.Object java.net.spi.InetAddressResolver.LookupPolicy    Enclosing interface: InetAddressResolver  public static final class InetAddressResolver.LookupPolicy extends Object A LookupPolicy object describes characteristics that can be applied to a lookup operation. In particular, it is used to specify the ordering and which filtering should be performed when looking up host addresses.  The default platform-wide lookup policy is constructed by consulting System Properties which affect how IPv4 and IPv6 addresses are returned.
  Since: 18     Field Summary  
Modifier and Type
Field
Description


static final int
IPV4
 Characteristic value signifying if IPv4 addresses need to be queried during lookup. 


static final int
IPV4_FIRST
 Characteristic value signifying if IPv4 addresses should be returned first by InetAddressResolver. 


static final int
IPV6
 Characteristic value signifying if IPv6 addresses need to be queried during lookup. 


static final int
IPV6_FIRST
 Characteristic value signifying if IPv6 addresses should be returned first by InetAddressResolver. 

  Method Summary    
Modifier and Type
Method
Description


int
characteristics()
 Returns the set of characteristics of this lookup policy. 


static InetAddressResolver.LookupPolicy
of(int characteristics)
 This factory method creates a LookupPolicy instance with the given characteristics value. 

    Methods declared in class java.lang.Object
 clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
     Field Details  IPV4 @Native public static final int IPV4 Characteristic value signifying if IPv4 addresses need to be queried during lookup.  See Also:   Constant Field Values     IPV6 @Native public static final int IPV6 Characteristic value signifying if IPv6 addresses need to be queried during lookup.  See Also:   Constant Field Values     IPV4_FIRST @Native public static final int IPV4_FIRST Characteristic value signifying if IPv4 addresses should be returned first by InetAddressResolver.  See Also:   Constant Field Values     IPV6_FIRST @Native public static final int IPV6_FIRST Characteristic value signifying if IPv6 addresses should be returned first by InetAddressResolver.  See Also:   Constant Field Values     Method Details  of public static InetAddressResolver.LookupPolicy of(int characteristics) This factory method creates a LookupPolicy instance with the given characteristics value.  The characteristics value is an integer bit mask which defines parameters of a forward lookup operation. These parameters define at least: 
 the family type of the returned addresses the order in which a resolver implementation should return its results   To request addresses of specific family types the following bit masks can be combined: 
 
IPV4: to request IPv4 addresses 
IPV6: to request IPv6 addresses  It is an error if neither IPV4 or IPV6 are set.  To request a specific ordering of the results: 
 
IPV4_FIRST: return IPv4 addresses before any IPv6 address 
IPV6_FIRST: return IPv6 addresses before any IPv4 address  If neither IPV4_FIRST or IPV6_FIRST are set it implies "system" order of addresses. It is an error to request both IPV4_FIRST and IPV6_FIRST.  Parameters: 
characteristics - a value which represents the set of lookup characteristics Returns: an instance of InetAddressResolver.LookupPolicy
 Throws: 
IllegalArgumentException - if an illegal characteristics bit mask is provided See Also:   InetAddressResolver.lookupByName(String, LookupPolicy)     characteristics public int characteristics() Returns the set of characteristics of this lookup policy.  Returns: a characteristics value See Also:   InetAddressResolver.lookupByName(String, LookupPolicy)     

    
{'path': 'public/docs/openjdk~18/java.base/java/net/spi/inetaddressresolver.lookuppolicy.html', 'source': 'DevDocs.IO'}