```
public class IPv4BootstrapRegistry
extends Object
```
RFC 9224-compliant wrapper around the IANA RDAP Bootstrap Service Registry for the IPv4 address space

Fields
Modifier and Type	Field	Description
`private static HashMap<jakarta.ws.rs.client.Client,IPv4BootstrapRegistry>`	`instances`
`private HashMap<inet.ipaddr.IPAddressString,String>`	`subnetsToServiceMap`

Constructors
Modifier	Constructor	Description
`private`	`IPv4BootstrapRegistry(jakarta.ws.rs.client.Client client)`
`private`	`IPv4BootstrapRegistry(jakarta.ws.rs.client.Client client, String url)`

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static IPv4BootstrapRegistry`	`getInstance(jakarta.ws.rs.client.Client client)`	Get current instance of the wrapper
`String`	`getServiceURLForIP(String ip)`	Get the RDAP service URL for a given IPv4 address
`static IPv4BootstrapRegistry`	`refresh(jakarta.ws.rs.client.Client client)`	Throw away the current instance and get a new one with updated bootstrap data

private HashMap<inet.ipaddr.IPAddressString,String> subnetsToServiceMap

private static HashMap<jakarta.ws.rs.client.Client,IPv4BootstrapRegistry> instances

private IPv4BootstrapRegistry(jakarta.ws.rs.client.Client client)
                       throws IOException

private IPv4BootstrapRegistry(jakarta.ws.rs.client.Client client,
                              String url)

Class IPv4BootstrapRegistry