1. import java.util.HashMap;
  2. import java.util.Map;
  4. public class UserMetadata {
  6. private Map<String, String> metadata = new HashMap<>();
  8. /**
  9. * Adds metadata for the user.
  10. * @param key The metadata key.
  11. * @param value The metadata value.
  12. */
  13. public void addMetadata(String key, String value) {
  14. metadata.put(key, value);
  15. }
  17. /**
  18. * Retrieves metadata for the user by key.
  19. * @param key The metadata key to retrieve.
  20. * @return The metadata value associated with the key, or null if not found.
  21. */
  22. public String getMetadata(String key) {
  23. return metadata.get(key);
  24. }
  26. /**
  27. * Gets all metadata.
  28. * @return A map containing all metadata.
  29. */
  30. public Map<String, String> getAllMetadata() {
  31. return metadata;
  32. }
  33. }

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