Package alexiil.mc.lib.attributes.item.filter

Interface ItemFilter

All Known Subinterfaces:

ReadableItemFilter, ResolvableItemFilter

All Known Implementing Classes:

AggregateItemFilter, ConstantItemFilter, ExactItemFilter, ExactItemSetFilter, ExactItemStackFilter, InvertedItemFilter, ItemClassFilter, ItemInsertableFilter, ItemTagFilter

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ItemFilter

A specialised version of the Predicate functional interface for ItemStacks.

5 basic implementations are provided:

• ConstantItemFilter for filters that always match or never match.
• ExactItemFilter for a filter that matches on a single Item, and rejects others.
• ExactItemStackFilter for a filter that matches on a single ItemStack (using .
• ItemClassFilter for a filter that only matches on Items whose #getClass() is an instance of the class specified by the filter.
• AggregateItemFilter for a filter that either AND's or OR's several other ItemFilter's into one.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	ItemFilter.ItemFilterAsPredicate	Predicate wrapper around an ItemFilter.

Method Summary

Modifier and Type	Method	Description
default ItemFilter	and(ItemFilter other)
default java.util.function.Predicate<net.minecraft.item.ItemStack>	asPredicate()
boolean	matches(net.minecraft.item.ItemStack stack)	Checks to see if this filter matches the given stack.
default ItemFilter	negate()
default ItemFilter	or(ItemFilter other)

Method Details

matches

boolean matches(net.minecraft.item.ItemStack stack)

Checks to see if this filter matches the given stack. Note that this must not care about ItemStack.getCount(), except in the case where the stack is ItemStack.isEmpty(), which isn't expected to return a useful result.

negate

default ItemFilter negate()

and

default ItemFilter and(ItemFilter other)

or

default ItemFilter or(ItemFilter other)

asPredicate

default java.util.function.Predicate<net.minecraft.item.ItemStack> asPredicate()

Returns:

A Predicate that delegates to this matches(ItemStack). The default implementation returns ItemFilter.ItemFilterAsPredicate, which is probably always what you want.