Class StoragePreconditions

java.lang.Object

net.fabricmc.fabric.api.transfer.v1.storage.StoragePreconditions

public final class StoragePreconditions
extends Object

Preconditions that can be used when working with storages.

In particular, notNegative(long) or notBlankNotNegative(TransferVariant, long) can be used by implementations of Storage.insert(T, long, TransactionContext) and Storage.extract(T, long, TransactionContext) to fail-fast if the arguments are invalid.

Method Summary

Modifier and Type	Method	Description
static void	notBlank(TransferVariant<?> variant)	Ensure that the passed transfer variant is not blank.
static void	notBlankNotNegative(TransferVariant<?> variant, long amount)	Check both for a not blank transfer variant and a not negative amount.
static void	notNegative(long amount)	Ensure that the passed amount is not negative.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

notBlank

public static void notBlank(TransferVariant<?> variant)

Ensure that the passed transfer variant is not blank.

Throws:

IllegalArgumentException - If the variant is blank.

notNegative

public static void notNegative(long amount)

Ensure that the passed amount is not negative. That is, it must be >= 0.

Throws:

IllegalArgumentException - If the amount is negative.

notBlankNotNegative

public static void notBlankNotNegative(TransferVariant<?> variant,
 long amount)

Check both for a not blank transfer variant and a not negative amount.