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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;
}

...

Handling SQL Dates

Expand
titleDifference between two datesGet SQL Date

getSelectSQLDate(String dbType, String datefield) method returns a String script 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);
}
Expand
titleAdd period of time to SQL Date

addMonthsSQLDate(String dbType, String dateField, int months) method returns a script which adds the given number of months to the given date field. It works for both SQL and Hibernate queries.

Code Block
titleHibernate Query Example
public ArrayList<CRMDO> loadEffectiveAfterAMonth(Date asOfDate){
	ArrayList<Object> values = new ArrayList<Object>();
	String dbType = getCRMSession().getDbtype();
	if(expirationDate!=null)
	{
		values.add(asOfDate);
		criteria+= " and " + DateUtil.addMonthsSQLDate(dbType, DateUtil.getSelectSQLDate(dbType, getDOName().toLowerCase() + ".effectiveDate"),1)+"<=:p"+values.size();
		criteria+= " and " + DateUtil.addMonthsSQLDate(dbType, DateUtil.getSelectSQLDate(dbType, getDOName().toLowerCase() + ".expirationDate"),1)+">:p"+values.size();
	}
	
	return load(getDOName().toLowerCase() + ".isDeleted=0" +criteria,
				values,
				getDefaultAssociations(),
				null,
				null);	
	
}
Code Block
titleSQL Query Example
public Boolean isEffectiveAfterAMonth(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.addMonthsSQLDate(dbType,DateUtil.getSelectSQLDate(dbtype, "RT.RENTTYPEEFFECTIVEDATE"),1) + " <= " + DateUtil.getSQLDate(dbtype, asOfDate) + 
						"\n 	AND " + DateUtil.addMonthsSQLDate(dbType,DateUtil.getSelectSQLDate(dbtype, "RT.RENTTYPEEXPIRATIONDATE"),1) + " > " + 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);
}

The following method works in a corresponding way:

addDaysSQLDate(String dbType, String dateField, int days) method returns a script which adds the given number of days to the given date field. It works for both SQL and Hibernate queries.

 

 

SQL Handling Methods

 

Metadata Handling Methods

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