org.opennms.netmgt.config.dao.thresholding.impl

Class OnmsThresholdingDao

java.lang.Object

org.opennms.netmgt.config.dao.thresholding.impl.AbstractThresholdingDao

org.opennms.netmgt.config.dao.thresholding.impl.OnmsThresholdingDao

All Implemented Interfaces:

ReadableDao<ThresholdingConfig>, WriteableDao<ThresholdingConfig>, ReadableThresholdingDao, WriteableThresholdingDao

public class OnmsThresholdingDao
extends AbstractThresholdingDao
implements WriteableThresholdingDao

Field Summary

Fields inherited from class org.opennms.netmgt.config.dao.thresholding.impl.AbstractThresholdingDao

JSON_STORE_KEY

Constructor Summary

Constructors

Constructor and Description
OnmsThresholdingDao(JsonStore jsonStore)

Method Summary

Modifier and Type	Method and Description
ThresholdingConfig	getReadOnlyConfig() Get the current configuration.
ThresholdingConfig	getWriteableConfig() This method returns the mutable configuration object for which any changes made to it will be persisted and reflected after a call to WriteableDao.saveConfig().
void	onConfigChanged() Notify the DAO that the configuration it tracks has changed.
void	reload() Instructs the DAO to reload the configuration from the backing data source immediately.
void	saveConfig() Save the current configuration held by the DAO.

Methods inherited from class java.lang.Object

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

Constructor Detail

OnmsThresholdingDao

public OnmsThresholdingDao(JsonStore jsonStore)
                    throws IOException

Throws:

IOException

Method Detail

saveConfig

public void saveConfig()

Description copied from interface: WriteableDao

Save the current configuration held by the DAO.

The configuration held by the DAO may not necessarily be the same configuration reference as returned by WriteableDao.getWriteableConfig() if the config has been reloaded in between calls. This implies any changes to the reference returned by WriteableDao.getWriteableConfig() will not be reflected when saved in this case.

Specified by:

saveConfig in interface WriteableDao<ThresholdingConfig>

getReadOnlyConfig

public ThresholdingConfig getReadOnlyConfig()

Description copied from interface: ReadableDao

Get the current configuration. Whether or not this configuration is in sync with the backing data source is up to the implementation, see ReadableDao.reload(). The value returned by this method may be the result of merging multiple objects together. As a result, mutations to this object may not be visible to other readers and are not permitted. For cases where mutation and/or persistence of changes is required see WriteableDao.getWriteableConfig().

Specified by:

getReadOnlyConfig in interface ReadableDao<ThresholdingConfig>

Returns:

the merged configuration consisting of the filesystem configuration and any configuration provided by extensions

getWriteableConfig

public ThresholdingConfig getWriteableConfig()

Description copied from interface: WriteableDao

This method returns the mutable configuration object for which any changes made to it will be persisted and reflected after a call to WriteableDao.saveConfig().

Specified by:

getWriteableConfig in interface WriteableDao<ThresholdingConfig>

Returns:

just the configuration from the filesystem since configuration provided by extensions is read only

reload

public void reload()

Description copied from interface: ReadableDao

Instructs the DAO to reload the configuration from the backing data source immediately. Whether or not the config actually gets reloaded is up to the implementation as it may already be up to date. However invoking this method should guarantee that a subsequent call to ReadableDao.getReadOnlyConfig() yields the up to date configuration.

Specified by:

reload in interface ReadableDao<ThresholdingConfig>

onConfigChanged

public void onConfigChanged()

Description copied from interface: WriteableDao

Notify the DAO that the configuration it tracks has changed.

Call this method after updating the filesystem configuration directly or after providing a config extension.

Specified by:

onConfigChanged in interface WriteableDao<ThresholdingConfig>