com.lowagie.bc.asn1

Class ASN1Sequence

Implemented Interfaces:
DEREncodable, DERTags
Known Direct Subclasses:
DERConstructedSequence, DERSequence

public abstract class ASN1Sequence
extends DERObject

Field Summary

private Vector
seq

Fields inherited from interface com.lowagie.bc.asn1.DERTags

APPLICATION, BIT_STRING, BMP_STRING, BOOLEAN, CONSTRUCTED, ENUMERATED, EXTERNAL, GENERALIZED_TIME, GENERAL_STRING, GRAPHIC_STRING, IA5_STRING, INTEGER, NULL, NUMERIC_STRING, OBJECT_IDENTIFIER, OCTET_STRING, PRINTABLE_STRING, SEQUENCE, SEQUENCE_OF, SET, SET_OF, T61_STRING, TAGGED, UNIVERSAL_STRING, UTC_TIME, UTF8_STRING, VIDEOTEX_STRING, VISIBLE_STRING

Method Summary

protected void
addObject(DEREncodable obj)
(package private) abstract void
encode(DEROutputStream out)
boolean
equals(Object o)
static ASN1Sequence
getInstance(Object obj)
return an ASN1Sequence from the given object.
static ASN1Sequence
getInstance(ASN1TaggedObject obj, boolean explicit)
Return an ASN1 sequence from a tagged object.
DEREncodable
getObjectAt(int index)
return the object at the sequence postion indicated by index.
Enumeration
getObjects()
int
hashCode()
int
size()
return the number of objects in this sequence.

Methods inherited from class com.lowagie.bc.asn1.DERObject

encode, getDERObject

Field Details

seq

private Vector seq

Method Details

addObject

protected void addObject(DEREncodable obj)

encode

(package private)  abstract void encode(DEROutputStream out)
            throws IOException
Overrides:
encode in interface DERObject

equals

public boolean equals(Object o)

getInstance

public static ASN1Sequence getInstance(Object obj)
return an ASN1Sequence from the given object.
Parameters:
obj - the object we want converted.

getInstance

public static ASN1Sequence getInstance(ASN1TaggedObject obj,
                                       boolean explicit)
Return an ASN1 sequence from a tagged object. There is a special case here, if an object appears to have been explicitly tagged on reading but we were expecting it to be implictly tagged in the normal course of events it indicates that we lost the surrounding sequence - so we need to add it back (this will happen if the tagged object is a sequence that contains other sequences). If you are dealing with implicitly tagged sequences you really should be using this method.
Parameters:
obj - the tagged object.
explicit - true if the object is meant to be explicitly tagged, false otherwise.

getObjectAt

public DEREncodable getObjectAt(int index)
return the object at the sequence postion indicated by index.
Parameters:
index - the sequence number (starting at zero) of the object
Returns:
the object at the sequence postion indicated by index.

getObjects

public Enumeration getObjects()

hashCode

public int hashCode()

size

public int size()
return the number of objects in this sequence.
Returns:
the number of objects in this sequence.