Validated Identifiers

ValidatedIdentifier is one of the more powerful validation tools at the Fzzy Config modders disposal. ValidatedIdentifier can provide:

Suggestions for allowable identifiers
Restrictions based on tags, registries, or pre-defined lists
ValidatedIdentifier implements most methods that Identifier itself does.

Most of the time, one of the companion methods will probably work best for creating a ValidatedIdentifier based on a registry, tag, or other built in Minecraft identifier collection.

public ValidatedIdentifier fromRegistry = ValidatedIdentifier.ofRegistry(Identifier.of("cobblestone"), Registries.ITEM); //build from an MC registry
public ValidatedIdentifier fromRegistryKey = ValidatedIdentifier.ofRegistryKey(Identifier.of("cobblestone"), RegistryKeys.BLOCK); //build from an MC registry key pointing to a registry
public ValidatedIdentifier fromDynamicKey = ValidatedIdentifier.ofDynamicKey(RegistryKeys.LOOT_TABLE, "example_loot_sync_id", (id, entry) -> id.getPath().contains("gameplay")); //build from an MC registry key pointing to a dynamic registry, primarily used for registries that aren't synced to clients (like loot)
public ValidatedIdentifier fromTag = ValidatedIdentifier.ofTag(ItemTags.WOOL); //build from a tag.
public ValidatedIdentifier fromRegistryTags = ValidatedIdentifier.ofRegistryTags(RegistryKeys.DAMAGE_TYPE); //build a validated identifier with all the loaded tags for the specified registry as possible values.
public ValidatedIdentifier fromList = ValidatedIdentifier.ofList(myListOfIds); //build from a predefined list of identifiers. Check the other options first.
public ValidatedIdentifier fromSuppliedList = ValidatedIdentifier.ofSuppliedList(() -> myListOfIds); //same as ofList, but allows for dynamic supply of a list

For more details, check out the related documentation: Validated Identifier

If you need to implement a custom identifier filter, see: Allowable Identifiers