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Useful methods frequently used in the system concerning date, SQL and metadata handling.

What does this section cover?

Table of Contents

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Expand
titleTruncate Date

truncate(Date date) method returns the date rounded to the day with a time of 00:00:00:00. setEndOfDay(Date date) method returns the date rounded to the day with a time of 23:59:59:999.

Code Block
titleExample
public DateRange getDateRange(Date fromDate, Date toDate){
	if (fromDate!=null && toDate!=null )
	{
		fromDate = DateUtil.truncate(fromDate);
		toDate = DateUtil.setEndOfDay(toDate);
		range = new DateRange(fromDate, toDate);
	}
		
	return range;
}

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Expand
titleAdd period of time to date

 add(Date date, int timeValue, UnitOfTime uot) method adds the given number(time value) of units to the given date.

Code Block
titleExample
public Boolean getCompletionDate(Date startDate, Integer timeValue, UnitOfTime uot){
	
	Date completionDate = DateUtil.add(startDate, timeValue, uot);
		
	return completionDate ;
}

Alternatively, any of the following methods can be used if the unit of time is known and not given. 

  1. addYears(Date date, int numberOfYears) method adds the given number of years to the given date.
  2. addMonths(Date date, int numberOfMonths) method adds the given number of months to the given date.
  3. addWeeks(Date date, int numberOfWeeks) method adds the given number of weeks to the given date.
  4. addDays(Date date, int numberOfDays) method adds the given number of days to the given date.
  5. addHours(Date date, int numberOfHours) method adds the given number of hours to the given date.
  6. addMinutes(Date date, int numberOfMinutes) method adds the given number of minutes to the given date.
  7. addSeconds(Date date, int numberOfSeconds) method adds the given number of seconds to the given date.

Handling SQL Dates

Expand
titleDifference between two dates

getSelectSQLDate(String dbType, String datefield) method returns a String which is the given date or date field in the correct form for the given the database type. It works for both SQL and Hibernate queries.

Code Block
titleHibernate Query Example
public ArrayList<CRMDO> loadEffective(Date asOfDate){
	ArrayList<Object> values = new ArrayList<Object>();
	String dbType = getCRMSession().getDbtype();
	if(expirationDate!=null)
	{
		values.add(asOfDate);
		criteria+= " and " + DateUtil.getSelectSQLDate(dbType, getDOName().toLowerCase() + ".effectiveDate")+"<=:p"+values.size();
		criteria+= " and " + DateUtil.getSelectSQLDate(dbType, getDOName().toLowerCase() + ".expirationDate")+">:p"+values.size();
	}
	
	return load(getDOName().toLowerCase() + ".isDeleted=0" +criteria,
				values,
				getDefaultAssociations(),
				null,
				null);	
	
}
Code Block
titleSQL Query Example
public Boolean isEffective(CUSTOMCRMDORentalType rentalType, CRMDODate asOfDate){
		String dbtype = getCRMSession().getDbtype();

		String sql = 
						"\n 	SELECT RENTTYPEID FROM TRN_RENTALTYPES RT " +
						"\n 	WHERE RT.RENTTYPEID = ?" +
						"\n     AND PV.PRODVALIDITYDELETED = 0 " +
						"\n 	AND " + DateUtil.getSelectSQLDate(dbtype, "RT.RENTTYPEEFFECTIVEDATE") + " <= " + DateUtil.getSQLDate(dbtype, asOfDate) + 
						"\n 	AND " + DateUtil.getSelectSQLDate(dbtype, "RT.RENTTYPEEXPIRATIONDATE") + " > " + DateUtil.getSQLDate(dbtype, asOfDate) + 
					
 
		ArrayList<Object> parameters = new ArrayList<Object>();
		parameters.add(rentalType.getId());

		if (SQLUtil.queryReturnedRows(sql, getOrganisationID(), parameters, dbType))
		{
			return new Boolean(true);
		}
 
	return new Boolean(false);
}

 

SQL Handling Methods

 

Metadata Handling Methods

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