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## net.ivoa.registry.search
Class Identifiers

    java.lang.Object
      net.ivoa.registry.search.SearchResults
          net.ivoa.registry.search.Identifiers

    public class Identifiers

extends SearchResults

this class provides iterator access to a list of identifiers returned as part of a registry search.

Method Summary
`java.lang.String` | `next()` return the next identifier in the list of results.
`java.lang.String` | `previous()` return the previous identifier.

Methods inherited from class net.ivoa.registry.search.SearchResults
`getRetrievedCount, hasNext, hasPrevious, isCountFinal`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Method Detail

### next

    public java.lang.String next()
                          throws RegistryServiceException,
                                 RegistryFormatException,
                                 RegistryCommException

  return the next identifier in the list of results. This call may recontact the registry to get the next set of results; thus, some exceptions may be thrown.

  Throws:
    `RegistryServiceException` - if the service encounters an error (i.e. on the server side).
    `RegistryCommException` - if an unexpected protocol error is encountered.
    `RegistryFormatException` - if the XML response is non-compliant in some way.

### previous

    public java.lang.String previous()
                              throws RegistryServiceException,
                                     RegistryFormatException,
                                     RegistryCommException

  return the previous identifier. This call may recontact the registry to re-fetch the previous set of results; thus, some exceptions may be thrown.

  Throws:
    `RegistryServiceException` - if the service encounters an error (i.e. on the server side).
    `RegistryCommException` - if an unexpected protocol error is encountered.
    `RegistryFormatException` - if the XML response is non-compliant in some way.

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