getMaxDate()

From a list of business objects, return the latest date as a DtpDate object.

Syntax

public static DtpDate getMaxDate(BusObjArray boList, String attr,
       String dateFormat) 
 

Parameters

boList
A list of business objects.
attr
The attribute of the business object to use when doing the comparison. The attribute must be of type Date.
dateFormat
This is the date format. See DtpDate() for more details. If this is null, it is assumed that the date is the number of milliseconds since 1970.

Return values

A DtpDate object that contains the max date.

Exceptions

DtpIncompatibleBOTypeException - When the business objects in the list are not the same business object type.

DtpUnknownAttributeException - When the specified attribute is not a valid attribute in the business objects passed in.

DtpUnsupportedAttributeTypeException - When the type of the specified attribute is not one of the supported attribute types listed above.

All of these exceptions are subclasses of RunTimeEntityException.

Notes

The getMaxDate() method scans through the list of business objects looking for the business object with the latest date, and returns that date in the form of a DtpDate object.

Tip:
This method is a static method.

In the date evaluation, Jan 1, 2004 000000 is later than Jan 1, 2002 000000, which is later than Jan 1, 1999 000000

The date information is assumed to be stored in the attribute name passed into the method. If an object has null date information, it is ignored. If all of the objects have null date information, null is returned.

Examples

try
    {
    DtpDate maxDate = DtpDate.getMaxDate(bos, "Start Date", 
       "D/M/Y h:m:s");
    }
 catch ( RunTimeEntityException err )
    {
    System.out.println(err.getMessage());
    }
 

See also

getMinDate(), getMaxDateBO()

Copyright IBM Corp. 2003