Package io.deephaven.enterprise.tabledataservice

Class OnDiskTableDataService

java.lang.Object

io.deephaven.engine.table.impl.locations.impl.AbstractTableDataService

io.deephaven.enterprise.tabledataservice.OnDiskTableDataService

All Implemented Interfaces:

TableDataService, EnterpriseTableDataService, NamedImplementation

public class OnDiskTableDataService
extends AbstractTableDataService
implements EnterpriseTableDataService

A TableDataService implementation that expects data to be located on a local filesystem.

Constructor Summary

Constructors

Constructor	Description
OnDiskTableDataService(@NotNull Logger log, @Nullable String name, @NotNull SchemaService schemaService, @NotNull OnDiskTableDataServiceDescriptor descriptor)	Construct a TableDataService that sources tables from the local filesystem.
OnDiskTableDataService(@NotNull Logger log, @Nullable String name, @NotNull Path storageRoot, @NotNull SchemaService schemaService, boolean allowRefreshingUserTables)	Construct a TableDataService that sources tables from the local filesystem.

Method Summary

Modifier and Type	Method	Description
@NotNull OnDiskTableDataServiceDescriptor	getDescriptor()	Return an immutable descriptor object that identifies this TableDataService instance and does not hold resources.
io.deephaven.shadow.enterprise.com.illumon.iris.db.v2.locations.local.LocalTablePathManager	getPathManager()	Returns the path manager used by this service for internal operations and testing.
protected @NotNull TableLocationProvider	makeTableLocationProvider(@NotNull TableKey tableKey)
String	toString()

Methods inherited from class io.deephaven.engine.table.impl.locations.impl.AbstractTableDataService

getName, getRawTableLocationProvider, getTableLocationProvider, reset, reset

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.deephaven.util.type.NamedImplementation

getImplementationName

Methods inherited from interface io.deephaven.engine.table.impl.locations.TableDataService

describe, getName, getRawTableLocationProvider, getTableLocationProvider, reset, reset

Constructor Details

OnDiskTableDataService

public OnDiskTableDataService(@NotNull
 @NotNull Logger log,
 @Nullable
 @Nullable String name,
 @NotNull
 @NotNull SchemaService schemaService,
 @NotNull
 @NotNull OnDiskTableDataServiceDescriptor descriptor)

Construct a TableDataService that sources tables from the local filesystem.

Parameters:

log - A logger for logging

name - The service name (optional)

schemaService - The SchemaService to use for locating TableDefinitions

descriptor - The configuration for this TableDataService

OnDiskTableDataService

public OnDiskTableDataService(@NotNull
 @NotNull Logger log,
 @Nullable
 @Nullable String name,
 @NotNull
 @NotNull Path storageRoot,
 @NotNull
 @NotNull SchemaService schemaService,
 boolean allowRefreshingUserTables)

Construct a TableDataService that sources tables from the local filesystem.

Parameters:

log - A logger for logging

name - The service name (optional)

storageRoot - The root of the database on the filesystem

schemaService - The SchemaService to use for locating TableDefinitions

allowRefreshingUserTables - true if user tables are allowed to refresh

Method Details

makeTableLocationProvider

@NotNull
protected @NotNull TableLocationProvider makeTableLocationProvider(@NotNull
 @NotNull TableKey tableKey)

Specified by:

makeTableLocationProvider in class AbstractTableDataService

getPathManager

@InternalUseOnly
@VisibleForTesting
public io.deephaven.shadow.enterprise.com.illumon.iris.db.v2.locations.local.LocalTablePathManager getPathManager()

Returns the path manager used by this service for internal operations and testing. This method is only intended for internal use and testing.

Returns:

the LocalTablePathManager used by this service

toString

public String toString()

Overrides:

toString in class Object

getDescriptor

@NotNull
public @NotNull OnDiskTableDataServiceDescriptor getDescriptor()

Description copied from interface: EnterpriseTableDataService

Return an immutable descriptor object that identifies this TableDataService instance and does not hold resources.

Specified by:

getDescriptor in interface EnterpriseTableDataService

Returns:

the TableDataServiceDescriptor for this TableDataService