stella
Interface DatabaseParameter

All Superinterfaces:

Initializable, Parameter, PropertySupplying

public interface DatabaseParameter
extends Parameter

A parameter that obtains its value from a data base. The parameter set is responsible for opening a connection to the data base and handing it over to the parameter after construction. The method writeToDatabase(java.sql.Connection) urges the parameter to write its current value to the database. Such parameters may be used for slowly varying parameters that are accurate during the entire lifetime of STELLA, like the total observation time of the telescope.

Field Summary

Fields inherited from interface util.PropertySupplying

CONFIG, KEY_CLASS

Method Summary

boolean	readFromDatabase(Connection con) Urges the parameter to read its value from the connection handed over.
boolean	writeToDatabase(Connection con) Urges the parameter to write its current value to the connection handed over.

Methods inherited from interface stella.Parameter

get, getFormatted, getName, getString, set

Methods inherited from interface util.PropertySupplying

defaultBoolean, defaultChar, defaultDouble, defaultFloat, defaultInt, defaultLong, defaultObject, defaultObject, defaultProperties, defaultProperty, getAsBoolean, getAsChar, getAsDouble, getAsFloat, getAsInt, getAsList, getAsLong, getAsMap, getAsObject, getAsObject, getProperties, getProperty, has, parseObject, removeProperty, setObject, setProperty, stringProperties

Methods inherited from interface util.Initializable

init

Method Detail

readFromDatabase

boolean readFromDatabase(Connection con)

Urges the parameter to read its value from the connection handed over.

Returns:

True on success

writeToDatabase

boolean writeToDatabase(Connection con)

Urges the parameter to write its current value to the connection handed over.

Returns:

True on successful updates.