io.vertx.rxjava3.core.dns

## Class DnsClient

- java.lang.Object
- - io.vertx.rxjava3.core.dns.DnsClient

-     public class DnsClient
      extends Object

  Provides a way to asynchronously lookup information from DNS servers.

  Please consult the documentation for more information on DNS clients.

  The client is thread safe and can be used from any thread.

  NOTE: This class has been automatically generated from the `original` non RX-ified interface using Vert.x codegen.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static io.vertx.lang.rx.TypeArg<DnsClient>` | `__TYPE_ARG`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `DnsClient(DnsClient delegate)`
    `DnsClient(Object delegate)`

  - ### Method Summary

    All Methods Static Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `Completable` | `close()` Close the client.
    `boolean` | `equals(Object o)`
    `DnsClient` | `getDelegate()`
    `int` | `hashCode()`
    `Maybe<String>` | `lookup(String name)` Try to lookup the A (ipv4) or AAAA (ipv6) record for the given name.
    `Maybe<String>` | `lookup4(String name)` Try to lookup the A (ipv4) record for the given name.
    `Maybe<String>` | `lookup6(String name)` Try to lookup the AAAA (ipv6) record for the given name.
    `static DnsClient` | `newInstance(DnsClient arg)`
    `Single<List<String>>` | `resolveA(String name)` Try to resolve all A (ipv4) records for the given name.
    `Single<List<String>>` | `resolveAAAA(String name)` Try to resolve all AAAA (ipv6) records for the given name.
    `Single<List<String>>` | `resolveCNAME(String name)` Try to resolve the CNAME record for the given name.
    `Single<List<MxRecord>>` | `resolveMX(String name)` Try to resolve the MX records for the given name.
    `Single<List<String>>` | `resolveNS(String name)` Try to resolve the NS records for the given name.
    `Maybe<String>` | `resolvePTR(String name)` Try to resolve the PTR record for the given name.
    `Single<List<SrvRecord>>` | `resolveSRV(String name)` Try to resolve the SRV records for the given name.
    `Single<List<String>>` | `resolveTXT(String name)` Try to resolve the TXT records for the given name.
    `Maybe<String>` | `reverseLookup(String ipaddress)` Try to do a reverse lookup of an IP address.
    `Completable` | `rxClose()` Close the client.
    `Maybe<String>` | `rxLookup(String name)` Try to lookup the A (ipv4) or AAAA (ipv6) record for the given name.
    `Maybe<String>` | `rxLookup4(String name)` Try to lookup the A (ipv4) record for the given name.
    `Maybe<String>` | `rxLookup6(String name)` Try to lookup the AAAA (ipv6) record for the given name.
    `Single<List<String>>` | `rxResolveA(String name)` Try to resolve all A (ipv4) records for the given name.
    `Single<List<String>>` | `rxResolveAAAA(String name)` Try to resolve all AAAA (ipv6) records for the given name.
    `Single<List<String>>` | `rxResolveCNAME(String name)` Try to resolve the CNAME record for the given name.
    `Single<List<MxRecord>>` | `rxResolveMX(String name)` Try to resolve the MX records for the given name.
    `Single<List<String>>` | `rxResolveNS(String name)` Try to resolve the NS records for the given name.
    `Maybe<String>` | `rxResolvePTR(String name)` Try to resolve the PTR record for the given name.
    `Single<List<SrvRecord>>` | `rxResolveSRV(String name)` Try to resolve the SRV records for the given name.
    `Single<List<String>>` | `rxResolveTXT(String name)` Try to resolve the TXT records for the given name.
    `Maybe<String>` | `rxReverseLookup(String ipaddress)` Try to do a reverse lookup of an IP address.
    `String` | `toString()`

    - ### Methods inherited from class java.lang.Object

      `clone, finalize, getClass, notify, notifyAll, wait, wait, wait`

- - ### Field Detail

    - #### __TYPE_ARG

          public static final io.vertx.lang.rx.TypeArg<DnsClient> __TYPE_ARG

  - ### Constructor Detail

    - #### DnsClient

          public DnsClient(DnsClient delegate)

    - #### DnsClient

          public DnsClient(Object delegate)

  - ### Method Detail

    - #### toString

          public String toString()

      Overrides:
        `toString` in class `Object`

    - #### equals

          public boolean equals(Object o)

      Overrides:
        `equals` in class `Object`

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `Object`

    - #### getDelegate

          public DnsClient getDelegate()

    - #### lookup

          public Maybe<String> lookup(String name)

      Try to lookup the A (ipv4) or AAAA (ipv6) record for the given name. The first found will be used.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### rxLookup

          public Maybe<String> rxLookup(String name)

      Try to lookup the A (ipv4) or AAAA (ipv6) record for the given name. The first found will be used.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### lookup4

          public Maybe<String> lookup4(String name)

      Try to lookup the A (ipv4) record for the given name. The first found will be used.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### rxLookup4

          public Maybe<String> rxLookup4(String name)

      Try to lookup the A (ipv4) record for the given name. The first found will be used.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### lookup6

          public Maybe<String> lookup6(String name)

      Try to lookup the AAAA (ipv6) record for the given name. The first found will be used.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### rxLookup6

          public Maybe<String> rxLookup6(String name)

      Try to lookup the AAAA (ipv6) record for the given name. The first found will be used.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### resolveA

          public Single<List<String>> resolveA(String name)

      Try to resolve all A (ipv4) records for the given name.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### rxResolveA

          public Single<List<String>> rxResolveA(String name)

      Try to resolve all A (ipv4) records for the given name.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### resolveAAAA

          public Single<List<String>> resolveAAAA(String name)

      Try to resolve all AAAA (ipv6) records for the given name.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### rxResolveAAAA

          public Single<List<String>> rxResolveAAAA(String name)

      Try to resolve all AAAA (ipv6) records for the given name.
      Parameters:
        `name` - the name to resolve
      Returns:
        a reference to this, so the API can be used fluently

    - #### resolveCNAME

          public Single<List<String>> resolveCNAME(String name)

      Try to resolve the CNAME record for the given name.
      Parameters:
        `name` - the name to resolve the CNAME for
      Returns:
        a reference to this, so the API can be used fluently.

    - #### rxResolveCNAME

          public Single<List<String>> rxResolveCNAME(String name)

      Try to resolve the CNAME record for the given name.
      Parameters:
        `name` - the name to resolve the CNAME for
      Returns:
        a reference to this, so the API can be used fluently.

    - #### resolveMX

          public Single<List<MxRecord>> resolveMX(String name)

      Try to resolve the MX records for the given name.
      Parameters:
        `name` - the name for which the MX records should be resolved
      Returns:
        a reference to this, so the API can be used fluently.

    - #### rxResolveMX

          public Single<List<MxRecord>> rxResolveMX(String name)

      Try to resolve the MX records for the given name.
      Parameters:
        `name` - the name for which the MX records should be resolved
      Returns:
        a reference to this, so the API can be used fluently.

    - #### resolveTXT

          public Single<List<String>> resolveTXT(String name)

      Try to resolve the TXT records for the given name.
      Parameters:
        `name` - the name for which the TXT records should be resolved
      Returns:
        a reference to this, so the API can be used fluently.

    - #### rxResolveTXT

          public Single<List<String>> rxResolveTXT(String name)

      Try to resolve the TXT records for the given name.
      Parameters:
        `name` - the name for which the TXT records should be resolved
      Returns:
        a reference to this, so the API can be used fluently.

    - #### resolvePTR

          public Maybe<String> resolvePTR(String name)

      Try to resolve the PTR record for the given name.
      Parameters:
        `name` - the name to resolve the PTR for
      Returns:
        a reference to this, so the API can be used fluently.

    - #### rxResolvePTR

          public Maybe<String> rxResolvePTR(String name)

      Try to resolve the PTR record for the given name.
      Parameters:
        `name` - the name to resolve the PTR for
      Returns:
        a reference to this, so the API can be used fluently.

    - #### resolveNS

          public Single<List<String>> resolveNS(String name)

      Try to resolve the NS records for the given name.
      Parameters:
        `name` - the name for which the NS records should be resolved
      Returns:
        a reference to this, so the API can be used fluently.

    - #### rxResolveNS

          public Single<List<String>> rxResolveNS(String name)

      Try to resolve the NS records for the given name.
      Parameters:
        `name` - the name for which the NS records should be resolved
      Returns:
        a reference to this, so the API can be used fluently.

    - #### resolveSRV

          public Single<List<SrvRecord>> resolveSRV(String name)

      Try to resolve the SRV records for the given name.
      Parameters:
        `name` - the name for which the SRV records should be resolved
      Returns:
        a reference to this, so the API can be used fluently.

    - #### rxResolveSRV

          public Single<List<SrvRecord>> rxResolveSRV(String name)

      Try to resolve the SRV records for the given name.
      Parameters:
        `name` - the name for which the SRV records should be resolved
      Returns:
        a reference to this, so the API can be used fluently.

    - #### reverseLookup

          public Maybe<String> reverseLookup(String ipaddress)

      Try to do a reverse lookup of an IP address. This is basically the same as doing trying to resolve a PTR record but allows you to just pass in the IP address and not a valid ptr query string.
      Parameters:
        `ipaddress` - the IP address to resolve the PTR for
      Returns:
        a reference to this, so the API can be used fluently.

    - #### rxReverseLookup

          public Maybe<String> rxReverseLookup(String ipaddress)

      Try to do a reverse lookup of an IP address. This is basically the same as doing trying to resolve a PTR record but allows you to just pass in the IP address and not a valid ptr query string.
      Parameters:
        `ipaddress` - the IP address to resolve the PTR for
      Returns:
        a reference to this, so the API can be used fluently.

    - #### close

          public Completable close()

      Close the client.
      Returns:

    - #### rxClose

          public Completable rxClose()

      Close the client.
      Returns:

    - #### newInstance

          public static DnsClient newInstance(DnsClient arg)

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