This class provides some information for federal states of
- germany
- austria
- switzerland ('federal states' -> 'cantons')
and the public holidays applicable to the individual federal states. For
moving public holidays (not on a fixed date, e.g. Easter), a calculation
of the date for any calendar year is included.
Since there are sometimes several number ranges per state, the main issue
of this class is the relationship between the postcode and the state to
which the respective place belongs.
This information is often required to determine state-specific regulations
(e.g. public holidays, school holidays, laws ...)
The class provides a list of all federal states and the corresponding
abbreviation.
Conversely, a corresponding SQL WHERE condition can be created in order
to find all addresses in a database in a particular state. (usually the
address data do not contain the correct state information)
Since this information normally do not change, an XML file was chosen for
data storage, which allows easily access with XPath.
1.Notes to the reverse search of federal state from postcode
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Since the backward search is based on areas from-to, it does not necessarily
mean that the postcode that is being searched for actually exists - the
validation of a postcode should be carried out via a database or an
appropriate (web) service.
Due to the fact that some postcodes in Austria and Switzerland include a
cross-federal state area, it is possible that in this case a comma-separated
list of the affected federal states (or abbreviations) will be returned as a
result.
2. Notes about public holidays
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2.a Germany
In Germany there are a few public holidays that are only partially
valid within a federal state - here you should then query directly
via the postcode.
2.b Austria / Switzerland
In the case, that a given postcode belongs to multiple states
it does not make sense to query the valid public holidays using the
postcode, since no clear state can be assigned.
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