org.huihoo.jfox.system
Class State

java.lang.Object
  org.huihoo.jfox.system.State

public final class State

extends java.lang.Object

Field Summary

static State	DESTROYED DESTROYED, system stopped and it's resource destoryed, example: it's connection closed
static State	DESTROYING DESTROYING, system is in destroying
int	id
static State	INITIALIZED INITIALIZED, system is initialized
static State	INITIALIZING INITIALIZING, system is in initializing, doCreate()
static State	INTERRUPTED INTERRUPPTED, system interrupted because of some error or exception
java.lang.String	name
static State	ORIGINAL
static State	STARTED STARTED, system has started
static State	STARTING STOPPING, system is in starting
static State	STOPPED STOPPED, system stopped by user
static State	STOPPING STOPPING, system is in stopping

Constructor Summary

State(int id, java.lang.String name)

Method Summary

static boolean	canDestroy(State state)
static boolean	canInit(State state)
static boolean	canStart(State state)
static boolean	canStop(State state)
boolean	equals(java.lang.Object obj) Indicates whether some other object is "equal to" this one.
int	getId()
java.lang.String	getName()
int	hashCode() Returns a hash code value for the object.
java.lang.String	toString() Returns a string representation of the object.

Methods inherited from class java.lang.Object

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

Field Detail

ORIGINAL

public static final State ORIGINAL

INITIALIZING

public static final State INITIALIZING

INITIALIZING, system is in initializing, doCreate()

INITIALIZED

public static final State INITIALIZED

INITIALIZED, system is initialized

STARTING

public static final State STARTING

STOPPING, system is in starting

STARTED

public static final State STARTED

STARTED, system has started

STOPPING

public static final State STOPPING

STOPPING, system is in stopping

STOPPED

public static final State STOPPED

STOPPED, system stopped by user

DESTROYING

public static final State DESTROYING

DESTROYING, system is in destroying

DESTROYED

public static final State DESTROYED

DESTROYED, system stopped and it's resource destoryed, example: it's connection closed

INTERRUPTED

public static final State INTERRUPTED

INTERRUPPTED, system interrupted because of some error or exception

id

public int id

name

public java.lang.String name

Constructor Detail

State

public State(int id,
             java.lang.String name)

Method Detail

getId

public int getId()

getName

public java.lang.String getName()

hashCode

public int hashCode()

Description copied from class: java.lang.Object

Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the Object.equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java^TM programming language.)

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), Hashtable

toString

public java.lang.String toString()

Description copied from class: java.lang.Object

Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.

The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:

 getClass().getName() + '@' + Integer.toHexString(hashCode())
 

Returns:

a string representation of the object.

equals

public boolean equals(java.lang.Object obj)

Description copied from class: java.lang.Object

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

• It is reflexive: for any non-null reference value x, x.equals(x) should return true.
• It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
• It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
• It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
• For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

Parameters:

obj - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Object.hashCode(), Hashtable

canInit

public static boolean canInit(State state)

canStart

public static boolean canStart(State state)

canStop

public static boolean canStop(State state)

canDestroy

public static boolean canDestroy(State state)