File	Doc	Category	Size	Date	Package
DateConstraint.java	API Doc	Example	4155	Sun Dec 14 22:47:40 GMT 2003	oreilly.hcj.datamodeling.constraints

DateConstraint

• java.lang.Object
  • ObjectConstraint

Fields Summary
protected Date	maxDate Holds value of property maxSize.
private Date	minDate Holds value of property minDate.

Constructors Summary
public DateConstraint(String name, boolean optional, Date minDate, Date maxDate) Creates a new instance of DateConstraint. param name Contains the name of the constraint. param optional Indicates if the property is optional. param minDate The minimum date to allow. param maxDate The maximum date to allow. see mirror.datamodel.constraints.Constraint super(name, optional, Date.class); this.minDate = minDate; this.maxDate = maxDate;
public DateConstraint(String name, boolean optional, String minDate, String maxDate, Locale locale) Creates a new instance of DateConstraint. Allows the min and max dates to be given as short style dates in the given locale. Note that the class uses java.text.DateFormat to parse the dates. param name Contains the name of the constraint. param optional Indicates if the property is optional. param minDate The minimum date to allow; Short Date style. param maxDate The maximum date to allow; Stort Date Style. param locale The locale to use for parsing the date. throws NullPointerException If locale is null. throws IllegalArgumentException If the minDate or maxDate don't parse correctly. see java.text.DateFormat see mirror.datamodel.constraints.Constraint super(name, optional, Date.class); if (locale == null) { throw new NullPointerException("locale can't be null."); //$NON-NLS-1$ } String parsingDate = null; try { DateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, locale); parsingDate = "minDate"; //$NON-NLS-1$ this.minDate = df.parse(minDate); parsingDate = "maxDate"; //$NON-NLS-1$ this.maxDate = df.parse(maxDate); } catch (ParseException ex) { throw new IllegalArgumentException(parsingDate + " : " + ex.getMessage()); //$NON-NLS-1$ }

Methods Summary
public java.util.Date	getMaxDate() Getter for property maxSize. return Value of property maxSize. return this.maxDate;
public java.util.Date	getMinDate() Getter for property minDate. return Value of property minDate. return this.minDate;
public void	validate(java.lang.Object obj) Validate the given object against the constraint. Checks to make sure the array is within the size limitation and then passes checking to the superclass. param obj The object to validate. throws ConstraintException If the constraint is violated. super.validate(obj); if (obj != null) { Date d = (Date)obj; if (d.compareTo(minDate) < 0) { throw new ConstraintException(ConstraintExceptionType.VALUE_BELOW_MINIMUM); } if (d.compareTo(maxDate) > 0) { throw new ConstraintException(ConstraintExceptionType.VALUE_ABOVE_MAXIMUM); } }