java.rmi.server

Class UID

java.lang.Object

java.rmi.server.UID

All Implemented Interfaces:

java.io.Serializable

public final class UID
extends java.lang.Object
implements java.io.Serializable

Represents the unique identifier over time for the host which has generated it. It contains time (when created), counter (the number of the UID creation order) and virtual machine id components. The UID can also be constructed specifying a "well known" identifier in the for of short: this identifier defines the UID uniqueness alone.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
UID() Create the new UID that would have the described features of the uniqueness.
UID(short wellKnownId) Create the new UID with the well known id (number).

Method Summary

Methods

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other) Compare this UID with another UID for equality (not equal to other types of objects).
int	hashCode() Get the hashCode of this UID.
static UID	read(java.io.DataInput in)
java.lang.String	toString() Get the string representation of this UID.
void	write(java.io.DataOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

UID

public UID()

Create the new UID that would have the described features of the uniqueness.

UID

public UID(short wellKnownId)

Create the new UID with the well known id (number). All UIDs, creates with the this constructor having the same parameter are equal to each other (regardless to the host and time where they were created.

Parameters:

wellKnownId - the well known UID.

Method Detail

hashCode

public int hashCode()

Get the hashCode of this UID.

Overrides:

hashCode in class java.lang.Object

Returns:

the hash code for this Object

See Also:

Object.equals(Object), System.identityHashCode(Object)

equals

public boolean equals(java.lang.Object other)

Compare this UID with another UID for equality (not equal to other types of objects).

Overrides:

equals in class java.lang.Object

Parameters:

other - the Object to compare to

Returns:

whether this Object is semantically equal to another

See Also:

Object.hashCode()

read

public static UID read(java.io.DataInput in)
                throws java.io.IOException

Throws:

java.io.IOException

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Throws:

java.io.IOException

toString

public java.lang.String toString()

Get the string representation of this UID.

Overrides:

toString in class java.lang.Object

Returns:

a string, uniquely identifying this id.

See Also:

Object.getClass(), Object.hashCode(), Class.getName(), Integer.toHexString(int)