Package org.apache.drill.exec.store

Class ConnectorHandle

java.lang.Object

org.apache.drill.exec.store.ConnectorHandle

public class ConnectorHandle
extends Object

Defines a storage connector: a storage plugin config along with the locator which can create a plugin instance given an instance of the config.

Method Summary

Modifier and Type	Method	Description
Class<? extends StoragePluginConfig>	configClass()
static ConnectorHandle	configuredConnector(ConnectorLocator locator, Class<? extends StoragePluginConfig> configClass)	Construct a handle for a "normal" connector which takes a plugin config and constructs a plugin instance based on that config.
Class<? extends StoragePlugin>	connectorClass()
static ConnectorHandle	intrinsicConnector(ConnectorLocator locator, StoragePlugin plugin)	Construct a handle for an intrinsic (system) connector which always uses a single config: the one created along with the plugin instance itself.
boolean	isIntrinsic()	An intrinsic connector is one defined for the life of the Drillbit.
boolean	isStored()
ConnectorLocator	locator()
StoragePlugin	newInstance(String name, StoragePluginConfig config)
PluginHandle	pluginEntryFor(String name, StoragePluginConfig config, org.apache.drill.exec.store.PluginHandle.PluginType type)

Methods inherited from class java.lang.Object

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

Method Details

configuredConnector

public static ConnectorHandle configuredConnector(ConnectorLocator locator,
 Class<? extends StoragePluginConfig> configClass)

Construct a handle for a "normal" connector which takes a plugin config and constructs a plugin instance based on that config.

intrinsicConnector

public static ConnectorHandle intrinsicConnector(ConnectorLocator locator,
 StoragePlugin plugin)

Construct a handle for an intrinsic (system) connector which always uses a single config: the one created along with the plugin instance itself.

isIntrinsic

public boolean isIntrinsic()

An intrinsic connector is one defined for the life of the Drillbit. It cannot be configured, changed or removed. It is not stored.

isStored

public boolean isStored()

locator

public ConnectorLocator locator()

configClass

public Class<? extends StoragePluginConfig> configClass()

connectorClass

public Class<? extends StoragePlugin> connectorClass()

pluginEntryFor

public PluginHandle pluginEntryFor(String name,
 StoragePluginConfig config,
 org.apache.drill.exec.store.PluginHandle.PluginType type)

newInstance

public StoragePlugin newInstance(String name,
 StoragePluginConfig config)
                          throws Exception

Throws:

Exception