org.lacibus.storeaccess

Class Quantum

java.lang.Object

org.lacibus.storeaccess.Quantum

Direct Known Subclasses:

Given, Unknown

public abstract class Quantum
extends java.lang.Object

An instance of this class is a quantity that could be unknown, identified by a string (such as "x"), or could be a known datum.

Constructor Summary

Constructors

Constructor and Description
Quantum(Datum d) Create a quantum that is a known datum
Quantum(java.lang.String x) Create a quantum that is an unknown

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
Datum	getDatum()
java.lang.String	getId()
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Quantum

public Quantum(java.lang.String x)
        throws NullQuantumException

Create a quantum that is an unknown

Parameters:

x - the identifier of the unknown

Throws:

NullQuantumException

Quantum

public Quantum(Datum d)
        throws NullQuantumException

Create a quantum that is a known datum

Parameters:

d - the known datum

Throws:

NullQuantumException

Method Detail

getId

public java.lang.String getId()

Returns:

the identifier of the unknown if this is an unknown, null if this is a known datum

getDatum

public Datum getDatum()

Returns:

the datum if this is a known datum, or null if this is an unknown.

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object