javax.naming.ldap

## Class PagedResultsResponseControl

- java.lang.Object
- - javax.naming.ldap.BasicControl
  - - javax.naming.ldap.PagedResultsResponseControl

- All Implemented Interfaces:
    Serializable, Control

      public final class PagedResultsResponseControl
      extends BasicControl

  Indicates the end of a batch of search results. Contains an estimate of the total number of entries in the result set and an opaque cookie. The cookie must be supplied to the next search operation in order to get the next batch of results.

  The code sample in `PagedResultsControl` shows how this class may be used.

  This class implements the LDAPv3 Response Control for paged-results as defined in RFC 2696. The control's value has the following ASN.1 definition:

           realSearchControlValue ::= SEQUENCE {
               size      INTEGER (0..maxInt),
                                 -- requested page size from client
                                 -- result set size estimate from server
               cookie    OCTET STRING
           }

  Since:
    1.5
  See Also:
    `PagedResultsControl`, Serialized Form

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `OID` The paged-results response control's assigned object identifier is 1.2.840.113556.1.4.319.

    - ### Fields inherited from class javax.naming.ldap.BasicControl

      `criticality, id, value`

    - ### Fields inherited from interface javax.naming.ldap.Control

      `CRITICAL, NONCRITICAL`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `PagedResultsResponseControl(String id, boolean criticality, byte[] value)` Constructs a paged-results response control.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `byte[]` | `getCookie()` Retrieves the server-generated cookie.
    `int` | `getResultSize()` Retrieves (an estimate of) the number of entries in the search result.

    - ### Methods inherited from class javax.naming.ldap.BasicControl

      `getEncodedValue, getID, isCritical`

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

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### OID

          public static final String OID

      The paged-results response control's assigned object identifier is 1.2.840.113556.1.4.319.
      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### PagedResultsResponseControl

          public PagedResultsResponseControl(String id,
                                     boolean criticality,
                                     byte[] value)
                                      throws IOException

      Constructs a paged-results response control.
      Parameters:
        `id` - The control's object identifier string.
        `criticality` - The control's criticality.
        `value` - The control's ASN.1 BER encoded value. It is not cloned - any changes to value will affect the contents of the control.
      Throws:
        `IOException` - If an error was encountered while decoding the control's value.

  - ### Method Detail

    - #### getResultSize

          public int getResultSize()

      Retrieves (an estimate of) the number of entries in the search result.
      Returns:
        The number of entries in the search result, or zero if unknown.

    - #### getCookie

          public byte[] getCookie()

      Retrieves the server-generated cookie. Null is returned when there are no more entries for the server to return.
      Returns:
        A possibly null server-generated cookie. It is not cloned - any changes to the cookie will update the control's state and thus are not recommended.

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