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MonthDV.javaAPI DocJava SE 5 API7191Fri Aug 26 14:55:48 BST 2005com.sun.org.apache.xerces.internal.impl.dv.xs

MonthDV

public class MonthDV extends AbstractDateTimeDV
Validator for datatype (W3C Schema Datatypes)
author
Elena Litani
author
Gopal Sharma, SUN Microsystem Inc.
version
$Id: MonthDV.java,v 1.9 2003/01/16 18:34:04 sandygao Exp $

Fields Summary
Constructors Summary
Methods Summary
protected shortcompareDates(int[] date1, int[] date2)
Overwrite compare algorithm to optimize month comparison REVISIT: this one is lack of the third parameter: boolean strict, so it doesn't override the method in the base. But maybe this method is not correctly implemented, and I did encounter errors when trying to add the extra parameter. I'm leaving it as is. -SG

param
date1
param
date2
return
less, greater, equal, indeterminate


        if ( date1[utc]==date2[utc] ) {
            return (short)((date1[M]>=date2[M])?(date1[M]>date2[M])?1:0:-1);
        }

        if ( date1[utc]=='Z" || date2[utc]=='Z" ) {

            if ( date1[M]==date2[M] ) {
                //--05--Z and --05--
                return INDETERMINATE;
            }
            if ( (date1[M]+1 == date2[M] || date1[M]-1 == date2[M]) ) {
                //--05--Z and (--04-- or --05--)
                //REVISIT: should this case be less than or equal?
                //         maxExclusive should fail but what about maxInclusive
                //
                return INDETERMINATE;
            }
        }

        if ( date1[M]<date2[M] ) {
            return -1;
        }
        else {
            return 1;
        }
protected java.lang.StringdateToString(int[] date)
Converts month object representation to String

param
date month object
return
lexical representation of month: --MM with an optional time zone sign

        StringBuffer message = new StringBuffer(5);
        message.append('-");
        message.append('-");
        append(message, date[M], 2);
        append(message, (char)date[utc], 0);
        return message.toString();
public java.lang.ObjectgetActualValue(java.lang.String content, com.sun.org.apache.xerces.internal.impl.dv.ValidationContext context)
Convert a string to a compiled form

param
content The lexical representation of gMonth
return
a valid and normalized gMonth object

        try{
            return new DateTimeData(parse(content), this);
        } catch(Exception ex){
            throw new InvalidDatatypeValueException("cvc-datatype-valid.1.2.1", new Object[]{content, "gMonth"});
        }
protected int[]parse(java.lang.String str)
Parses, validates and computes normalized version of gMonth object

param
str The lexical representation of gMonth object --MM with possible time zone Z or (-),(+)hh:mm
param
date uninitialized date object
return
normalized date representation
exception
SchemaDateTimeException Invalid lexical representation

        int len = str.length();
        int[] date=new int[TOTAL_SIZE];
        int[] timeZone = new int[2];

        //set constants
        date[CY]=YEAR;
        date[D]=DAY;
        if (str.charAt(0)!='-" || str.charAt(1)!='-") {
            throw new SchemaDateTimeException("Invalid format for gMonth: "+str);
        }
        int stop = 4;
        date[M]=parseInt(str,2,stop);

        // REVISIT: allow both --MM and --MM-- now.
        // need to remove the following 4 lines to disallow --MM--
        // when the errata is offically in the rec.
        if (str.length() >= stop+2 &&
            str.charAt(stop) == '-" && str.charAt(stop+1) == '-") {
            stop += 2;
        }
        if (stop < len) {
            int sign = findUTCSign(str, stop, len);
            if ( sign<0 ) {
                throw new SchemaDateTimeException ("Error in month parsing: "+str);
            }
            else {
                getTimeZone(str, date, sign, len, timeZone);
            }
        }
        //validate and normalize
        validateDateTime(date, timeZone);

        if ( date[utc]!=0 && date[utc]!='Z" ) {
            normalize(date, timeZone);
        }
        return date;