framework/application/kernel/jpa/src/main/java/org/ldp4j/application/kernel/persistence/jpa/DateConverter.java
@Override
	public String convertToDatabaseColumn(Date attribute) {
		if(attribute==null) {
			return null;
		}
		return Long.toString(attribute.getTime());
	}
@Override
	public String convertToDatabaseColumn(Date attribute) {
		if(attribute==null) {
			return null;
		}
		return Long.toString(attribute.getTime());
	}
{@inheritDoc}