ehcache

net.sf.ehcache
Class Status

java.lang.Object
  extended by net.sf.ehcache.Status
All Implemented Interfaces:
Serializable

public final class Status
extends Object
implements Serializable

A pre JDK1.5 compatible enum class to indicate the status of a CacheManager or Cache.

ehcache historically used int values for status. This is unsuitable for third party use thus this class. Methods are provided to convert from the int status values to enum values and vice versa.

Since:
1.2
Version:
$Id: Status.java 5594 2012-05-07 16:04:31Z cdennis $
Author:
Greg Luck
See Also:
Serialized Form

Field Summary
static Status STATUS_ALIVE
          The cache is alive.
static Status STATUS_SHUTDOWN
          The cache is shudown.
static Status STATUS_UNINITIALISED
          The cache is uninitialised.
 
Method Summary
static Status convertIntToStatus(int statusAsInt)
           
 boolean equals(Object object)
          Indicates whether some other object is "equal to" this one.
 boolean equals(Status status)
          Equality checker when the comparison object is of the same type.
 int hashCode()
          Returns a hash code value for Status.
 int intValue()
          Returns the int value of status, for backward compatibility with ehcache versions below 1.2
 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

STATUS_UNINITIALISED

public static final Status STATUS_UNINITIALISED
The cache is uninitialised. It cannot be used.


STATUS_ALIVE

public static final Status STATUS_ALIVE
The cache is alive. It can be used.


STATUS_SHUTDOWN

public static final Status STATUS_SHUTDOWN
The cache is shudown. It cannot be used.

Method Detail

toString

public String toString()
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())
 

Overrides:
toString in class Object
Returns:
a string representation of the object.

convertIntToStatus

public static Status convertIntToStatus(int statusAsInt)
                                 throws IllegalArgumentException
Parameters:
statusAsInt - an int argument between 1 and 3.
Returns:
an enum Status
Throws:
IllegalArgumentException - if the argument is not between 1 and 3

intValue

public int intValue()
Returns the int value of status, for backward compatibility with ehcache versions below 1.2

Returns:
the int value of this status.

equals

public boolean equals(Object object)
Indicates whether some other object is "equal to" this one.

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

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.

Overrides:
equals in class Object
Parameters:
object - the reference object with which to compare.
Returns:
true if this object is the same as the obj argument; false otherwise.
See Also:
hashCode(), Hashtable

equals

public boolean equals(Status status)
Equality checker when the comparison object is of the same type.

Parameters:
status - the status to check
Returns:
true is the statuses are the same

hashCode

public int hashCode()
Returns a hash code value for Status. It is the underlying int value of the status.

Overrides:
hashCode in class Object
Returns:
a hash code value for this object.
See Also:
Object.hashCode(), Hashtable

ehcache

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