Package org.bouncycastle.asn1

Class ASN1Null

java.lang.Object

org.bouncycastle.asn1.ASN1Object

org.bouncycastle.asn1.ASN1Primitive

org.bouncycastle.asn1.ASN1Null

All Implemented Interfaces:

ASN1Encodable, Encodable

Direct Known Subclasses:

DERNull

public abstract class ASN1Null
extends ASN1Primitive

A NULL object - use DERNull.INSTANCE for populating structures.

Method Summary

Modifier and Type	Method	Description
static ASN1Null	getInstance(Object o)	Return an instance of ASN.1 NULL from the passed in object.
int	hashCode()	Returns an integer hash code for this object.
String	toString()	Returns a string containing a concise, human-readable description of this object.

Methods inherited from class org.bouncycastle.asn1.ASN1Primitive

equals, fromByteArray, toASN1Primitive

Methods inherited from class org.bouncycastle.asn1.ASN1Object

getEncoded, getEncoded, hasEncodedTagValue, toASN1Object

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static ASN1Null getInstance(Object o)

Return an instance of ASN.1 NULL from the passed in object.

Accepted inputs:

• null → null
• ASN1Null object
• a byte[] containing ASN.1 NULL object

Parameters:

o - object to be converted.

Returns:

an instance of ASN1Null, or null.

Throws:

IllegalArgumentException - if the object cannot be converted.

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.

Specified by:

hashCode in class ASN1Primitive

Returns:

this object's hash code.

See Also:

Object.equals(java.lang.Object)

toString

public String toString()

Description copied from class: Object

Returns a string containing a concise, human-readable description of this object. Subclasses are encouraged to override this method and provide an implementation that takes into account the object's type and data. The default implementation is equivalent to the following expression:

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

See Writing a useful toString method if you intend implementing your own toString method.

Overrides:

toString in class Object

Returns:

a printable representation of this object.