# 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
  Description
  `static final String`
  `OID`
  The paged-results response control's assigned object identifier is 1.2.840.113556.1.4.319.

  ### Fields declared in class BasicControl

  `criticality, id, value`

  ### Fields declared in interface Control

  `CRITICAL, NONCRITICAL`

- ## Constructor Summary

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

- ## Method Summary

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

  ### Methods declared in class BasicControl

  `getEncodedValue, getID, isCritical`

  ### Methods declared in class Object

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

- ## Field Details

  - ### 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 Details

  - ### 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 Details

  - ### 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.