Package net.fabricmc.fabric.api.transfer.v1.storage.base

Interface InsertionOnlyStorage<T>

All Superinterfaces:
Iterable<StorageView<T>>, Storage<T>
All Known Implementing Classes:
EmptyItemFluidStorage
public interface InsertionOnlyStorage<T> extends Storage<T>
A Storage that supports insertion, and not extraction. By default, it doesn't have any storage view either.

  • Method Details

    • supportsExtraction

      default boolean supportsExtraction()
      Description copied from interface: Storage
      Return false if calling Storage.extract(T, long, net.fabricmc.fabric.api.transfer.v1.transaction.TransactionContext) will absolutely always return 0, or true otherwise or in doubt.

      Note: This function is meant to be used by pipes or other devices that can transfer resources to know if they should interact with this storage at all.

      Specified by:
      supportsExtraction in interface Storage<T>

    • extract

      default long extract(T resource, long maxAmount, TransactionContext transaction)
      Description copied from interface: Storage
      Try to extract up to some amount of a resource from this storage.
      Specified by:
      extract in interface Storage<T>
      Parameters:
      resource - The resource to extract. May not be blank.
      maxAmount - The maximum amount of resource to extract. May not be negative.
      transaction - The transaction this operation is part of.
      Returns:
      A non-negative integer not greater than maxAmount: the amount that was extracted.

    • iterator

      default Iterator<StorageView<T>> iterator()
      Description copied from interface: Storage
      Iterate through the contents of this storage. Every visited StorageView represents a stored resource and an amount. The iterator doesn't guarantee that a single resource only occurs once during an iteration. Calling remove on the iterator is not allowed.

      Storage.insert(T, long, net.fabricmc.fabric.api.transfer.v1.transaction.TransactionContext) and Storage.extract(T, long, net.fabricmc.fabric.api.transfer.v1.transaction.TransactionContext) may be called safely during iteration. Extractions should be visible to an open iterator, but insertions are not required to. In particular, inventories with a fixed amount of slots may wish to make insertions visible to iterators, but inventories with a dynamic or very large amount of slots should not do that to ensure timely termination of the iteration.

      If a modification is made to the storage during iteration, the iterator might become invalid at the end of the outermost transaction. In particular, if multiple storage views are extracted from, the entire iteration should be wrapped in a transaction.

      Specified by:
      iterator in interface Iterable<T>
      Specified by:
      iterator in interface Storage<T>
      Returns:
      An iterator over the contents of this storage. Calling remove on the iterator is not allowed.