TokenizedPagingParams

Data transfer object used to pass tokenized paging parameters for queries.

Description

The TokenizedPagingParams allows you to create data transfer objects used to pass tokenized parameters for queries.

Important points

  • The page is defined by two parameters:
    • the token token that defines a starting point for the search.
    • the take parameter sets how many items to return in a page.
  • Additionally, the optional total parameter tells to return the total number of items in the query.
  • However, not all implementations support the total parameter because its generation may lead to severe performance implications.
  • In general, this class can be used for complex paging scenarios, like paging across multiple databases where the previous state is encoded in a token. The token is usually retrieved from the previous response. The initial request shall go with token == null

Constructors

Creates a new instance and sets its values.

public TokenizedPagingParams(String token, Integer take, Boolean total)

  • token: String - token that defines a starting point for the search.
  • take: Integer - the number of items to return.
  • total: Boolean - true to return the total number of items.

Fields

token

Start token

public String token

take

Number of items to return.

public Integer take

total

Flag used to define whether the total number of items must be returned or not.

public Boolean total

Instance methods

getTake

Gets the number of items to return in a page.

public int getTake(int maxTake)

  • maxTake: int - maximum number of items to return.
  • returns: int - number of items to return.

Static methods

fromMap

Creates a new TokenizedPagingParams object and sets its parameters from the specified map.

public static TokenizedPagingParams fromMap(Object map)

  • map: Object - object used to initialize this TokenizedPagingParams object.
  • returns: TokenizedPagingParams - newly created TokenizedPagingParams object.

fromTuples

Creates a new TokenizedPagingParams object from a list of key-value pairs called tuples.

public static TokenizedPagingParams fromTuples(Object… tuples)

  • tuples: Object… - list of values where odd elements are keys and the following even elements are values
  • returns: TokenizedPagingParams - newly created TokenizedPagingParams object.

fromValue

Converts a specified value into a TokenizedPagingParams object.

public static TokenizedPagingParams fromValue(Object value)

  • value: Object - value to be converted
  • returns: TokenizedPagingParams - newly created TokenizedPagingParams object.

Examples

{
  var filter = FilterParams.fromTuples("type", "Type1");
  var paging = new TokenizedPagingParams(null, 100);
 
  var page = myDataClient.getDataByFilter(filter, paging);
  }