Package se.digg.dgc.valueset.v1

Class ReloadableValueSet

java.lang.Object

se.digg.dgc.valueset.v1.ValueSet

se.digg.dgc.valueset.v1.ReloadableValueSet

public class ReloadableValueSet
extends ValueSet

Since value sets may change over time and we really don't want to have to re-compile our programs everytime a value set changes, the ReloadableValueSet class can be useful. The class extends ValueSet but relies on a Supplier to get the value set data.

This supplier typically reads the value set from a JSON configuration file holding the data, or from a resource accessed over HTTP(S).

The implementation of the Supplier decides how often the value set data is reloaded, and the implementation is responsible of caching the current set of data.

Note:The Supplier.get() method MUST NEVER return null. If a download fails it should return data from its cache, and if the cache is empty (download has never succeeded) a RuntimeException must be thrown.

Author:

Martin Lindström (martin@idsec.se), Henrik Bengtsson (extern.henrik.bengtsson@digg.se), Henric Norlander (extern.henric.norlander@digg.se)

Constructor Summary

Constructors

Constructor	Description
ReloadableValueSet(Supplier<ValueSet> supplier)	Constructor.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
LocalDate	getDate()	Gets the value set date/version.
String	getId()	Gets the value set ID
Map<String,ValueSetValue>	getValues()	Gets the value set values.
int	hashCode()
void	setDate(LocalDate date)	Not allowed to call - will throw IllegalArgumentException.
void	setId(String id)	Not allowed to call - will throw IllegalArgumentException.
void	setValues(Map<String,ValueSetValue> values)	Not allowed to call - will throw IllegalArgumentException.
String	toString()

Methods inherited from class se.digg.dgc.valueset.v1.ValueSet

getValue

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ReloadableValueSet

public ReloadableValueSet(Supplier<ValueSet> supplier)

Constructor.

Parameters:

supplier - the ValueSet supplier

Method Detail

getId

public String getId()

Gets the value set ID

Overrides:

getId in class ValueSet

Returns:

the ID

setId

public void setId(String id)

Not allowed to call - will throw IllegalArgumentException.

Overrides:

setId in class ValueSet

Parameters:

id - the ID

getDate

public LocalDate getDate()

Gets the value set date/version.

Overrides:

getDate in class ValueSet

Returns:

the date/version

setDate

public void setDate(LocalDate date)

Not allowed to call - will throw IllegalArgumentException.

Overrides:

setDate in class ValueSet

Parameters:

date - the date/version

getValues

public Map<String,ValueSetValue> getValues()

Gets the value set values.

Overrides:

getValues in class ValueSet

Returns:

the values

setValues

public void setValues(Map<String,ValueSetValue> values)

Not allowed to call - will throw IllegalArgumentException.

Overrides:

setValues in class ValueSet

Parameters:

values - the values to set

toString

public String toString()

Overrides:

toString in class ValueSet

hashCode

public int hashCode()

Overrides:

hashCode in class ValueSet

equals

public boolean equals(Object obj)

Overrides:

equals in class ValueSet