tp
Class RID

java.lang.Object
  tp.RID

All Implemented Interfaces:

Serializable, Comparable<RID>, Lockable

public class RID
extends Object
implements Serializable, Comparable<RID>, Lockable

The class represents a resource identifier. There are three types of resource.

• Flight
• Room
• Car

The external string representation (toString()) of this identifier is following.

prefix ':' identifier

Valid prefix is 'F', 'R', 'C', which correspond to Flight, Room, and Car. getName() returns the identifier part.

See Also:

Serialized Form

Nested Class Summary

static class

RID.Type resource type

Field Summary

static int	MAX_NAME_LENGTH
protected String	name
protected RID.Type	type

Constructor Summary

RID()

RID(int flight)
create identifier with flight number

RID(RID.Type type, String name)

Method Summary

int	compareTo(RID o)
boolean	equals(Object o)
static RID	forCar(String loc) convenient method to create car resource identifier
static RID	forFlight(int flight) convenient method to create flight resource identifier
static RID	forFlight(String flight) convenient method to create flight resource identifier
static RID	forRoom(String loc) convenient method to create room resource identifier
String	getName()
RID.Type	getType() get type of resource id
int	hashCode()
static RID	parse(String s) parse external string representation
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

MAX_NAME_LENGTH

public static final int MAX_NAME_LENGTH

See Also:

Constant Field Values

type

protected RID.Type type

name

protected String name

Constructor Detail

RID

public RID()

RID

public RID(RID.Type type,
           String name)

RID

public RID(int flight)

create identifier with flight number

Parameters:

flight - the flight number

Method Detail

getType

public RID.Type getType()

get type of resource id

Returns:

type value of current identifier

getName

public String getName()

Returns:

name of resource

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object

compareTo

public int compareTo(RID o)

Specified by:

compareTo in interface Comparable<RID>

toString

public String toString()

Overrides:

toString in class Object

forFlight

public static RID forFlight(int flight)

convenient method to create flight resource identifier

Parameters:

flight - flight number

Returns:

flight resource identifier

forFlight

public static RID forFlight(String flight)

convenient method to create flight resource identifier

Parameters:

flight - flight number in string

Returns:

flight resource identifier

forCar

public static RID forCar(String loc)

convenient method to create car resource identifier

Parameters:

loc - location

Returns:

car resource identifier

forRoom

public static RID forRoom(String loc)

convenient method to create room resource identifier

Parameters:

loc - location

Returns:

room resource identifier

parse

public static RID parse(String s)

parse external string representation

Parameters:

s - result of toString()

Returns:

newly created resource identifier