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com.clra.rowing
Class SeatPreference  view SeatPreference download SeatPreference.java

java.lang.Object
  extended bycom.clra.rowing.SeatPreference
All Implemented Interfaces:
java.io.Serializable

public class SeatPreference
extends java.lang.Object
implements java.io.Serializable

Defines seating preference that may be specified by a participant for a rowing session.

Version:
$Id: SeatPreference.java,v 1.3 2003/02/26 03:38:45 rphall Exp $

Field Summary
static SeatPreference COX
          Indicates a member prefers to cox.
private  java.lang.String name
           
static java.lang.String NAME_COX
          Indicates a member prefers to cox.
static java.lang.String NAME_PORT
          Indicates a member prefers a port rowing position
static java.lang.String NAME_PORT_THEN_STARBOARD
          Indicates a member prefers a port position, but will also row starboard.
static java.lang.String NAME_STARBOARD
          Indicates a member prefers a starboard rowing position
static java.lang.String NAME_STARBOARD_THEN_PORT
          Indicates a member prefers a starboard position, but will also row port.
static SeatPreference PORT
          Indicates a member prefers a port rowing position
static SeatPreference PORT_THEN_STARBOARD
          Indicates a member prefers a port position, but will also row starboard.
static SeatPreference STARBOARD
          Indicates a member prefers a starboard rowing position
static SeatPreference STARBOARD_THEN_PORT
          Indicates a member prefers a starboard position, but will also row port.
 
Constructor Summary
protected SeatPreference(java.lang.String name)
           
 
Method Summary
static boolean compare(java.lang.String s1, java.lang.String s2)
           
 boolean equals(java.lang.Object o)
          Determine whether this Object is semantically equal to another Object.
 java.lang.String getName()
           
static SeatPreference getSeatPreference(java.lang.String name)
          SeatPreference is not a required field in a participant record, therefore if a null or blank name is passed to this method, an IllegalArgumentException is NOT thrown, but rather a null instance is returned.
 int hashCode()
          Get a value that represents this Object, as uniquely as possible within the confines of an int.
 java.lang.String toString()
          Convert this Object to a human-readable String.
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

NAME_STARBOARD

public static final java.lang.String NAME_STARBOARD
Indicates a member prefers a starboard rowing position

See Also:
Constant Field Values

NAME_PORT

public static final java.lang.String NAME_PORT
Indicates a member prefers a port rowing position

See Also:
Constant Field Values

NAME_STARBOARD_THEN_PORT

public static final java.lang.String NAME_STARBOARD_THEN_PORT
Indicates a member prefers a starboard position, but will also row port.

See Also:
Constant Field Values

NAME_PORT_THEN_STARBOARD

public static final java.lang.String NAME_PORT_THEN_STARBOARD
Indicates a member prefers a port position, but will also row starboard.

See Also:
Constant Field Values

NAME_COX

public static final java.lang.String NAME_COX
Indicates a member prefers to cox.

See Also:
Constant Field Values

STARBOARD

public static final SeatPreference STARBOARD
Indicates a member prefers a starboard rowing position


PORT

public static final SeatPreference PORT
Indicates a member prefers a port rowing position


STARBOARD_THEN_PORT

public static final SeatPreference STARBOARD_THEN_PORT
Indicates a member prefers a starboard position, but will also row port.


PORT_THEN_STARBOARD

public static final SeatPreference PORT_THEN_STARBOARD
Indicates a member prefers a port position, but will also row starboard.


COX

public static final SeatPreference COX
Indicates a member prefers to cox.


name

private final java.lang.String name
Constructor Detail

SeatPreference

protected SeatPreference(java.lang.String name)
Method Detail

getSeatPreference

public static SeatPreference getSeatPreference(java.lang.String name)
                                        throws RowingException
SeatPreference is not a required field in a participant record, therefore if a null or blank name is passed to this method, an IllegalArgumentException is NOT thrown, but rather a null instance is returned.

Note: values not defined by this class, will throw a RowingException.


getName

public java.lang.String getName()

toString

public java.lang.String toString()
Description copied from class: java.lang.Object
Convert this Object to a human-readable String. There are no limits placed on how long this String should be or what it should contain. We suggest you make it as intuitive as possible to be able to place it into System.out.println() 55 and such.

It is typical, but not required, to ensure that this method never completes abruptly with a java.lang.RuntimeException.

This method will be called when performing string concatenation with this object. If the result is null, string concatenation will instead use "null".

The default implementation returns getClass().getName() + "@" + Integer.toHexString(hashCode()).


hashCode

public int hashCode()
Description copied from class: java.lang.Object
Get a value that represents this Object, as uniquely as possible within the confines of an int.

There are some requirements on this method which subclasses must follow:

  • Semantic equality implies identical hashcodes. In other words, if a.equals(b) is true, then a.hashCode() == b.hashCode() must be as well. However, the reverse is not necessarily true, and two objects may have the same hashcode without being equal.
  • It must be consistent. Whichever value o.hashCode() returns on the first invocation must be the value returned on all later invocations as long as the object exists. Notice, however, that the result of hashCode may change between separate executions of a Virtual Machine, because it is not invoked on the same object.

Notice that since hashCode is used in java.util.Hashtable and other hashing classes, a poor implementation will degrade the performance of hashing (so don't blindly implement it as returning a constant!). Also, if calculating the hash is time-consuming, a class may consider caching the results.

The default implementation returns System.identityHashCode(this)


compare

public static boolean compare(java.lang.String s1,
                              java.lang.String s2)

equals

public boolean equals(java.lang.Object o)
Description copied from class: java.lang.Object
Determine whether this Object is semantically equal to another Object.

There are some fairly strict requirements on this method which subclasses must follow:

  • It must be transitive. If a.equals(b) and b.equals(c), then a.equals(c) must be true as well.
  • It must be symmetric. a.equals(b) and b.equals(a) must have the same value.
  • It must be reflexive. a.equals(a) must always be true.
  • It must be consistent. Whichever value a.equals(b) returns on the first invocation must be the value returned on all later invocations.
  • a.equals(null) must be false.
  • It must be consistent with hashCode(). That is, a.equals(b) must imply a.hashCode() == b.hashCode(). The reverse is not true; two objects that are not equal may have the same hashcode, but that has the potential to harm hashing performance.

This is typically overridden to throw a java.lang.ClassCastException if the argument is not comparable to the class performing the comparison, but that is not a requirement. It is legal for a.equals(b) to be true even though a.getClass() != b.getClass(). Also, it is typical to never cause a java.lang.NullPointerException.

In general, the Collections API (java.util) use the equals method rather than the == operator to compare objects. However, java.util.IdentityHashMap is an exception to this rule, for its own good reasons.

The default implementation returns this == o.