Package lazyj

Class FallbackProperties

java.lang.Object

java.util.Observable

lazyj.ExtProperties

lazyj.FallbackProperties

All Implemented Interfaces:

Observer

public class FallbackProperties
extends ExtProperties

Since:

May 14, 2018

Author:

costing

Constructor Summary

Constructors

Constructor	Description
FallbackProperties(List<ExtProperties> configProperties)	A different way of passing the ordered list of configuration sets to look into
FallbackProperties(ExtProperties... configProperties)	Query the given list of configuration sets in order, returning the first defined value in one of them

Method Summary

Modifier and Type	Method	Description
void	addProvider(ExtProperties config)	Append a provider to the fallback list (having thus the lowest priority)
void	addProvider(ExtProperties config, boolean first)	Add another provider to the fallback list, either as the first element (with the highest priority) or as the last one (lowest priority).
Properties	getProperties()	Get a Properties view of this object.
String	gets(String sKey, String sDefault, boolean bProcessQueries)	Get the String value for a given key, returning the given default value if the key is not defined.
boolean	isReadOnly()	Check if the configuration object is read only or can accept modifications to it
void	removeProvider(ExtProperties config)	Remove a provider from the fallback list
void	set(String sKey, String sValue)	Modify an entry of the dictionary.

Methods inherited from class lazyj.ExtProperties

addPropertyChangeListener, clearCache, getb, getConfigFileName, getd, geti, getl, gets, gets, makeReadOnly, parseOption, reload, removePropertyChangeListener, setAutoReload, size, toString, toVector, update

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

FallbackProperties

public FallbackProperties(ExtProperties... configProperties)

Query the given list of configuration sets in order, returning the first defined value in one of them

Parameters:

configProperties -

FallbackProperties

public FallbackProperties(List<ExtProperties> configProperties)

A different way of passing the ordered list of configuration sets to look into

Parameters:

configProperties -

Method Details

addProvider

public void addProvider(ExtProperties config)

Append a provider to the fallback list (having thus the lowest priority)

Parameters:

config -

addProvider

public void addProvider(ExtProperties config,
 boolean first)

Add another provider to the fallback list, either as the first element (with the highest priority) or as the last one (lowest priority).

Parameters:

config -

first - true for a high priority provider, false for a low priority one

removeProvider

public void removeProvider(ExtProperties config)

Remove a provider from the fallback list

Parameters:

config -

gets

public String gets(String sKey,
 String sDefault,
 boolean bProcessQueries)

Description copied from class: ExtProperties

Get the String value for a given key, returning the given default value if the key is not defined. The value that is returned is also stored in a cache so that future requests to the same key will return the value from the cache. This also means that if the key is not defined then the given default value will be cached and returned the next time this function is called. null values are not cached.

Overrides:

gets in class ExtProperties

Parameters:

sKey - the key to get the value for

sDefault - default value to return in case the key is not defined.

bProcessQueries - flag to process or not process the database/memory cache queries

Returns:

value for this key

set

public void set(String sKey,
 String sValue)

Description copied from class: ExtProperties

Modify an entry of the dictionary.

Overrides:

set in class ExtProperties

Parameters:

sKey - key to change

sValue - new value

isReadOnly

public boolean isReadOnly()

Description copied from class: ExtProperties

Check if the configuration object is read only or can accept modifications to it

Overrides:

isReadOnly in class ExtProperties

Returns:

true if changes are blocked

getProperties

public Properties getProperties()

Description copied from class: ExtProperties

Get a Properties view of this object. This will force a parsing of all the defined keys.

Overrides:

getProperties in class ExtProperties

Returns:

a Properties view of this object