Class Warehouse

java.lang.Object
  |
  +--java.util.Observable
        |
        +--Warehouse

public class Warehouse

extends Observable

A warehouse storing parcels in orders.

Field Summary

protected Crane	crane Crane used to operate on this warehouse.
protected Space[][]	spaces Array of spaces in this warehouse.

Constructor Summary

Warehouse(int width, int height)
Creates a warehouse that can fit the given number of parcels per side.

Method Summary

boolean	addOrder(Order anOrder) Places the given order in the warehouse and returns true, or returns false if it could not be placed.
int	getColumnCount() Returns the number of columns in this warehouse.
Crane	getCrane() Returns the crane used to operate on this warehouse.
Parcel	getParcel(int row, int col) Returns the parcel stored in this warehouse in the space at the given row and column indices.
int	getRowCount() Returns the number of rows in this warehouse.
Space[][]	getSpaces() Returns the array of spaces in this warehouse.
void	hit(Point p) "Hits" the space at the given location.
boolean	isEmpty(int row, int col) Returns whether or not the space at the given row and column indices is empty.
boolean	isFragmented(Order anOrder) Returns whether or not the given order is fragmented.
boolean	isFull() Returns true if there are no empty spaces in this warehouse, and false if at least one empty space exists.
boolean	removeOrder(Order anOrder) Removes the given order from the warehouse and returns true, or returns false if it could not be removed.
void	reset() Empties the warehouse and moves its crane to the default starting location.
Parcel	setParcel(int row, int col, Parcel p) Sets the parcel stored in this warehouse in the space at the given row and column indices to the given parcel.

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Field Detail

crane

protected Crane crane

Crane used to operate on this warehouse.

spaces

protected Space[][] spaces

Array of spaces in this warehouse.

Constructor Detail

Warehouse

public Warehouse(int width,
                 int height)

Creates a warehouse that can fit the given number of parcels per side. If either the given width or height is less than 1, it is set to a value of 1.

Parameters:

width - the width of the warehouse in parcels

height - the height of the warehouse in parcels

Method Detail

getRowCount

public int getRowCount()

Returns the number of rows in this warehouse.

getColumnCount

public int getColumnCount()

Returns the number of columns in this warehouse.

getSpaces

public Space[][] getSpaces()

Returns the array of spaces in this warehouse.

isEmpty

public boolean isEmpty(int row,
                       int col)

Returns whether or not the space at the given row and column indices is empty.

Parameters:

row - the row index of the space

col - the column index of the space

Throws:

ArrayIndexOutOfBoundsException - if the given row or column index is out of bounds

setParcel

public Parcel setParcel(int row,
                        int col,
                        Parcel p)

Sets the parcel stored in this warehouse in the space at the given row and column indices to the given parcel.

Parameters:

row - the row index of the space

col - the column index of the space

p - the parcel to be placed in the space

Returns:

the parcel previously stored in the space, or null if the space was empty

Throws:

ArrayIndexOutOfBoundsException - if the given row or column index is out of bounds

getParcel

public Parcel getParcel(int row,
                        int col)

Returns the parcel stored in this warehouse in the space at the given row and column indices.

Parameters:

row - the row index of the space

col - the column index of the space

Throws:

ArrayIndexOutOfBoundsException - if the given row or column index is out of bounds

hit

public void hit(Point p)

"Hits" the space at the given location.

getCrane

public Crane getCrane()

Returns the crane used to operate on this warehouse.

reset

public void reset()

Empties the warehouse and moves its crane to the default starting location.

addOrder

public boolean addOrder(Order anOrder)

Places the given order in the warehouse and returns true, or returns false if it could not be placed.

Parameters:

anOrder - order to place

removeOrder

public boolean removeOrder(Order anOrder)

Removes the given order from the warehouse and returns true, or returns false if it could not be removed.

Parameters:

anOrder - order to remove

isFragmented

public boolean isFragmented(Order anOrder)

Returns whether or not the given order is fragmented.

isFull

public boolean isFull()

Returns true if there are no empty spaces in this warehouse, and false if at least one empty space exists.