org.apache.harmony.security.utils

Class ObjectIdentifier

java.lang.Object

org.apache.harmony.security.utils.ObjectIdentifier

public final class ObjectIdentifier
extends Object

Instance of this class represents ObjectIdentifier (OID). OID is represented as a sequence of subidentifier. Each subidentifier is represented as non negative integer value. There are at least 2 subidentifiers in the sequence. Valid values for first subidentifier are 0, 1 and 2. If the first subidentifier has 0 or 1 value the second subidentifier MUST be less then 40.

See Also:

ASN.1

Constructor Summary

Constructors

Constructor and Description
ObjectIdentifier(int[] oid) Creates ObjectIdentifier(OID) from array of integers.
ObjectIdentifier(int[] oid, String name, Object oidGroup) Creates ObjectIdentifier(OID) from array of integers.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o) Compares object with OID for equality.
Object	getGroup() Gets OID's group.
String	getName() Gets OID's name.
int[]	getOid() Gets OID.
int	hashCode() Returns an integer hash code for this object.
static int	hashIntArray(int[] array) Returns hash code for array of integers
String	toOIDString() Add "OID." to the beginning of string representation.
String	toString() Overrides Object.toString()
static void	validateOid(int[] oid) Validates ObjectIdentifier (OID).

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectIdentifier

public ObjectIdentifier(int[] oid)

Creates ObjectIdentifier(OID) from array of integers.

Parameters:

oid - - array of integers

Throws:

NullPointerException - - if oid is null

IllegalArgumentException - - if oid is invalid

ObjectIdentifier

public ObjectIdentifier(int[] oid,
                        String name,
                        Object oidGroup)

Creates ObjectIdentifier(OID) from array of integers.

Parameters:

oid - - array of integers

name - - name of OID

oidGroup - - OID's group. Is used to separate different OID's

Throws:

NullPointerException - - if oid is null

IllegalArgumentException - - if oid is invalid

Method Detail

getOid

public int[] getOid()

Gets OID.

Returns:

oid

getName

public String getName()

Gets OID's name.

Returns:

name

getGroup

public Object getGroup()

Gets OID's group.

Returns:

group

equals

public boolean equals(Object o)

Compares object with OID for equality.

Overrides:

equals in class Object

Parameters:

o - the object to compare this instance with.

Returns:

true if object is ObjectIdentifier and it has the same representation as array of integers, otherwise false

See Also:

Object.hashCode()

toOIDString

public String toOIDString()

Add "OID." to the beginning of string representation.

Returns:

oid as string

toString

public String toString()

Overrides Object.toString()

Overrides:

toString in class Object

Returns:

oid as string

hashCode

public int hashCode()

Description copied from class: Object

Returns an integer hash code for this object. By contract, any two objects for which Object.equals(java.lang.Object) returns true must return the same hash code value. This means that subclasses of Object usually override both methods or neither method.

Note that hash values must not change over time unless information used in equals comparisons also changes.

See Writing a correct hashCode method if you intend implementing your own hashCode method.

Overrides:

hashCode in class Object

Returns:

this object's hash code.

See Also:

Object.hashCode()

validateOid

public static void validateOid(int[] oid)

Validates ObjectIdentifier (OID).

Parameters:

oid - - oid as array of integers

Throws:

NullPointerException - - if oid is null

IllegalArgumentException - - if oid is invalid

hashIntArray

public static int hashIntArray(int[] array)

Returns hash code for array of integers

Parameters:

oid - - array of integers