org.sakaiproject.component.api
Interface ServerConfigurationService.ConfigItem

All Known Implementing Classes:

BasicConfigItem, ServerConfigurationService.ConfigurationListener.BlockingConfigItem

Enclosing interface:

ServerConfigurationService

public static interface ServerConfigurationService.ConfigItem

Defines the config item holding class

Method Summary

int	changed(Object value, String source) Called whenever this config item is changed
ServerConfigurationService.ConfigItem	copy() Duplicate this config item This is mostly used to ensure we do not send the internal objects out where they could be changed
int	getChanged()
Object	getDefaultValue()
String	getDescription()
ServerConfigurationService.ConfigHistory[]	getHistory()
String	getName()
int	getRequested()
String	getSource()
String	getType()
Object	getValue()
int	getVersion()
boolean	isDefaulted()
boolean	isDynamic() Indicates is this config item is dynamic or static (default is static)
boolean	isRegistered()
boolean	isSecured()
int	requested() Called whenever this config item is requested

Method Detail

requested

int requested()

Called whenever this config item is requested

Returns:

the current number of times requested

changed

int changed(Object value,
            String source)

Called whenever this config item is changed

Parameters:

value - the new value

source - the source which is making the change

Returns:

the current number of times the item was changed

copy

ServerConfigurationService.ConfigItem copy()

Duplicate this config item This is mostly used to ensure we do not send the internal objects out where they could be changed

Returns:

a config item with all the same values

getName

String getName()

Returns:

the name/key for this configuration value

getValue

Object getValue()

Returns:

the actual stored value for this config (null indicates it is not set)

getType

String getType()

Returns:

the type of the value (string, int, boolean, array) - from ServerConfigurationService.TYPES

getSource

String getSource()

Returns:

the name of the most recent source for this config value (e.g. sakai/sakai.properties)

getDefaultValue

Object getDefaultValue()

Returns:

the default value for this config (null indicates it is not set)

getDescription

String getDescription()

Returns:

the human readable description of this configuration value

getRequested

int getRequested()

Returns:

the number of times the config value was requested (or looked up)

getChanged

int getChanged()

Returns:

the number of times this config value was changed (or updated)

getVersion

int getVersion()

Returns:

the version of this config item (a newly created item is version 1), incremented with each change

getHistory

ServerConfigurationService.ConfigHistory[] getHistory()

Returns:

the history of the config item over time (empty array if it has never changed)

isRegistered

boolean isRegistered()

Returns:

indicates if this config is registered (true) or if it is only requested (false) (requested means someone asked for it but the setting has not been stored in the config service)

isDefaulted

boolean isDefaulted()

Returns:

indicates is this config is has a default value defined (this can only be known for items which are requested)

isSecured

boolean isSecured()

Returns:

indicates is this config value should not be revealed because there are security implications

isDynamic

boolean isDynamic()

Indicates is this config item is dynamic or static (default is static)

Returns:

true is this config can be modified at runtime (dynamic), false if runtime changes are not allowed (static)