spki
Class SeqEntryFactory

java.lang.Object
  |
  +--spki.SeqEntryFactory

public final class SeqEntryFactory

extends Object

SPKI SeqEntryFactory utility class.

Version:

$Id: SeqEntryFactory.java,v 1.2 2002/07/12 18:56:21 tep Exp $

Author:

Tep Narula <tep@win.trlabs.ca>

See Also:

SeqEntry

Field Summary

private static String

__ME This class's full name.

Constructor Summary

private

SeqEntryFactory() Can't instantiate me.

Method Summary

static SeqEntry	getInstance(SExpression sexp) Get an instance of seq-entry from given S-Expression.
static boolean	isSeqEntry(SExpression sexp) Check an SExpression to see if it could contain a seq-entry.

Methods inherited from class java.lang.Object

, clone, equals, finalize, getClass, hashCode, notify, notifyAll, registerNatives, toString, wait, wait, wait

Field Detail

__ME

private static final String __ME

This class's full name.

Constructor Detail

SeqEntryFactory

private SeqEntryFactory()

Can't instantiate me. This is a tool class, we don't want a constructor!

Method Detail

isSeqEntry

public static final boolean isSeqEntry(SExpression sexp)

Check an SExpression to see if it could contain a seq-entry. It's a convenient utility function that checks whether the given SExpressions is an SList that has a matching type-name as one of those classes that are considered seq-entry.

Parameters:

sexp - the SExpression to check.

Returns:

true if given SExpression could contain be a seq-entry, false otherwise.

getInstance

public static final SeqEntry getInstance(SExpression sexp)
                                  throws SPKIException,
                                         ParseException

Get an instance of seq-entry from given S-Expression.

Parameters:

sexp - the SExpression to check.

Returns:

an instance of spki.interfaces.SeqEntry.

Throws:

ParseException - if the argument doesn't contain a seq-entry.

SPKIException - if something went wrong.