Package org.bukkit.inventory

Class InventoryView

java.lang.Object

org.bukkit.inventory.InventoryView

public abstract class InventoryView
extends Object

Represents a view linking two inventories and a single player (whose inventory may or may not be one of the two).

Note: If you implement this interface but fail to satisfy the expected contracts of certain methods, there's no guarantee that the game will work as it should.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	InventoryView.Property	Represents various extra properties of certain inventory windows.

Field Summary

Fields

Modifier and Type	Field	Description
static int	OUTSIDE

Constructor Summary

Constructors

Constructor	Description
InventoryView()

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the inventory view.
int	convertSlot(int rawSlot)	Converts a raw slot ID into its local slot ID into whichever of the two inventories the slot points to.
int	countSlots()	Check the total number of slots in this view, combining the upper and lower inventories.
abstract @NotNull Inventory	getBottomInventory()	Get the lower inventory involved in this transaction.
@Nullable ItemStack	getCursor()	Get the item on the cursor of one of the viewing players.
@Nullable Inventory	getInventory(int rawSlot)	Gets the inventory corresponding to the given raw slot ID.
@Nullable ItemStack	getItem(int slot)	Gets one item in this inventory view by its raw slot ID.
abstract @NotNull HumanEntity	getPlayer()	Get the player viewing.
InventoryType.SlotType	getSlotType(int slot)	Determine the type of the slot by its raw slot ID.
abstract @NotNull String	getTitle()	Get the title of this inventory window.
abstract @NotNull Inventory	getTopInventory()	Get the upper inventory involved in this transaction.
abstract @NotNull InventoryType	getType()	Determine the type of inventory involved in the transaction.
void	setCursor(@Nullable ItemStack item)	Sets the item on the cursor of one of the viewing players.
void	setItem(int slot, @Nullable ItemStack item)	Sets one item in this inventory view by its raw slot ID.
boolean	setProperty(@NotNull InventoryView.Property prop, int value)	Sets an extra property of this inventory if supported by that inventory, for example the state of a progress bar.

Methods inherited from class java.lang.Object

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

Field Detail

OUTSIDE

public static final int OUTSIDE

See Also:

Constant Field Values

Constructor Detail

InventoryView

public InventoryView()

Method Detail

getTopInventory

@NotNull
public abstract @NotNull Inventory getTopInventory()

Get the upper inventory involved in this transaction.

Returns:

the inventory

getBottomInventory

@NotNull
public abstract @NotNull Inventory getBottomInventory()

Get the lower inventory involved in this transaction.

Returns:

the inventory

getPlayer

@NotNull
public abstract @NotNull HumanEntity getPlayer()

Get the player viewing.

Returns:

the player

getType

@NotNull
public abstract @NotNull InventoryType getType()

Determine the type of inventory involved in the transaction. This indicates the window style being shown. It will never return PLAYER, since that is common to all windows.

Returns:

the inventory type

setItem

public void setItem(int slot,
                    @Nullable
                    @Nullable ItemStack item)

Sets one item in this inventory view by its raw slot ID.

Note: If slot ID -999 is chosen, it may be expected that the item is dropped on the ground. This is not required behaviour, however.

Parameters:

slot - The ID as returned by InventoryClickEvent.getRawSlot()

item - The new item to put in the slot, or null to clear it.

getItem

@Nullable
public @Nullable ItemStack getItem(int slot)

Gets one item in this inventory view by its raw slot ID.

Parameters:

slot - The ID as returned by InventoryClickEvent.getRawSlot()

Returns:

The item currently in the slot.

setCursor

public final void setCursor(@Nullable
                            @Nullable ItemStack item)

Sets the item on the cursor of one of the viewing players.

Parameters:

item - The item to put on the cursor, or null to remove the item on their cursor.

getCursor

@Nullable
public final @Nullable ItemStack getCursor()

Get the item on the cursor of one of the viewing players.

Returns:

The item on the player's cursor, or null if they aren't holding one.

getInventory

@Nullable
public final @Nullable Inventory getInventory(int rawSlot)

Gets the inventory corresponding to the given raw slot ID. If the slot ID is OUTSIDE null will be returned, otherwise behaviour for illegal and negative slot IDs is undefined. May be used with convertSlot(int) to directly index an underlying inventory.

Parameters:

rawSlot - The raw slot ID.

Returns:

corresponding inventory, or null

convertSlot

public final int convertSlot(int rawSlot)

Converts a raw slot ID into its local slot ID into whichever of the two inventories the slot points to.

If the raw slot refers to the upper inventory, it will be returned unchanged and thus be suitable for getTopInventory().getItem(); if it refers to the lower inventory, the output will differ from the input and be suitable for getBottomInventory().getItem().

Parameters:

rawSlot - The raw slot ID.

Returns:

The converted slot ID.

getSlotType

@NotNull
public final InventoryType.SlotType getSlotType(int slot)

Determine the type of the slot by its raw slot ID.

If the type of the slot is unknown, then InventoryType.SlotType.CONTAINER will be returned.

Parameters:

slot - The raw slot ID

Returns:

the slot type

close

public final void close()

Closes the inventory view.

countSlots

public final int countSlots()

Check the total number of slots in this view, combining the upper and lower inventories.

Note though that it's possible for this to be greater than the sum of the two inventories if for example some slots are not being used.

Returns:

The total size

setProperty

public final boolean setProperty(@NotNull
                                 @NotNull InventoryView.Property prop,
                                 int value)

Sets an extra property of this inventory if supported by that inventory, for example the state of a progress bar.

Parameters:

prop - the window property to update

value - the new value for the window property

Returns:

true if the property was updated successfully, false if the property is not supported by that inventory

getTitle

@NotNull
public abstract @NotNull String getTitle()

Get the title of this inventory window.

Returns:

The title.