Package com.illumon.iris.db.v2.locations

Class CompositeTableDataService

java.lang.Object

com.illumon.iris.db.v2.locations.AbstractTableDataService

com.illumon.iris.db.v2.locations.CompositeTableDataService

All Implemented Interfaces:

TableDataService

public class CompositeTableDataService
extends AbstractTableDataService

Routing TableDataService that applies a selector function to pick service(s) for each request. It is assumed that each service will provide access to a non-overlapping set of table locations for any table key.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CompositeTableDataService.ServiceSelector

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.locations.TableDataService

TableDataService.Null

Constructor Summary

Constructors

Constructor	Description
CompositeTableDataService(String name, CompositeTableDataService.ServiceSelector serviceSelector)

Method Summary

Modifier and Type	Method	Description
String	describe()	Like toString, but with more detail.
protected TableLocationProvider	makeTableLocationProvider(TableKey tableKey)
void	reset()	Forget all state for future requests.
void	reset(TableKey key)	Forget all state for a single table.
String	toString()

Methods inherited from class com.illumon.iris.db.v2.locations.AbstractTableDataService

getKnownLocationProviders, getName, getTableLocationProvider

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.illumon.iris.db.v2.locations.TableDataService

getTableLocationProvider

Constructor Details

CompositeTableDataService

public CompositeTableDataService(@NotNull String name, @NotNull CompositeTableDataService.ServiceSelector serviceSelector)

Parameters:

name - optional name for this service

serviceSelector - Function to map a table key to a set of services that should be queried.

Method Details

reset

public void reset()

Description copied from interface: TableDataService

Forget all state for future requests.

Specified by:

reset in interface TableDataService

Overrides:

reset in class AbstractTableDataService

reset

public void reset(TableKey key)

Description copied from interface: TableDataService

Forget all state for a single table.

Specified by:

reset in interface TableDataService

Overrides:

reset in class AbstractTableDataService

makeTableLocationProvider

@NotNull protected TableLocationProvider makeTableLocationProvider(@NotNull TableKey tableKey)

Specified by:

makeTableLocationProvider in class AbstractTableDataService

toString

public String toString()

Overrides:

toString in class Object

describe

public String describe()

Description copied from interface: TableDataService

Like toString, but with more detail.

Returns:

a description string