IdManager

java.lang.Object

collectionManagers.IdManager

public class IdManager extends Object

Class for managing object's id's

Constructor Summary

Constructors

Constructor

Description

IdManager()
Method Summary

Modifier and Type

Method

Description

static City

checkCityById(Long id)

Checks if a City object with the given ID exists in the collection, and if so, returns it

static Long

generateId()

Generates a unique ID that has not been previously generated and stores it in the queue

static boolean

isNotNumeric(String str)

Checks if a given string is not numeric

static Long

validateUserInput(String input)

Validates user input for ID fields and returns the parsed ID if it is valid

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

Constructor Details
- IdManager
  
  public IdManager()
Method Details
- checkCityById
  
  public static City checkCityById(Long id)
  
  Checks if a City object with the given ID exists in the collection, and if so, returns it
  
  Parameters:
  
  id - the ID to check
  
  Returns:
  
  the City object with the specified ID if it exists, otherwise null
- generateId
  
  public static Long generateId()
  
  Generates a unique ID that has not been previously generated and stores it in the queue
  
  Returns:
  
  the unique ID that was generated
- isNotNumeric
  
  public static boolean isNotNumeric(String str)
  
  Checks if a given string is not numeric
  
  Parameters:
  
  str - the string to check
  
  Returns:
  
  true if the string is not numeric, false otherwise
- validateUserInput
  
  public static Long validateUserInput(String input)
  
  Validates user input for ID fields and returns the parsed ID if it is valid
  
  Parameters:
  
  input - the user input to validate
  
  Returns:
  
  the parsed ID if it is valid, otherwise null