org.scijava.io.handle

Interface DataHandleService

All Superinterfaces:

Comparable<Prioritized>, Contextual, Disposable, HasPluginInfo, Identifiable, Initializable, Locatable, Logged, Prioritized, PTService<DataHandle<Location>>, RichPlugin, SciJavaPlugin, SciJavaService, Service, Typed<Location>, TypedService<Location,DataHandle<Location>>, Versioned, WrapperService<Location,DataHandle<Location>>

All Known Implementing Classes:

DefaultDataHandleService

public interface DataHandleService
extends WrapperService<Location,DataHandle<Location>>, SciJavaService

Interface for low-level data I/O: reading and writing bytes using DataHandles.

Author:

Curtis Rueden

See Also:

IOService, Location

Method Summary

Modifier and Type	Method and Description
default boolean	exists(Location location) Convenience method to test whether it describes an existing file.
default Class<DataHandle<Location>>	getPluginType() Gets the type of plugins managed by this service.
default Class<Location>	getType() Gets the type associated with the object.
default DataHandle<Location>	readBuffer(DataHandle<Location> handle) Wraps the provided DataHandle in a read-only buffer for accelerated reading.
default DataHandle<Location>	readBuffer(Location location) Creates a DataHandle on the provided Location wrapped in a read-only buffer for accelerated reading.
default DataHandle<Location>	writeBuffer(DataHandle<Location> handle) Wraps the provided DataHandle in a write-only buffer for accelerated writing.

Methods inherited from interface org.scijava.plugin.WrapperService

create, initialize, supports

Methods inherited from interface org.scijava.plugin.TypedService

find

Methods inherited from interface org.scijava.plugin.PTService

create, getPlugins, getPluginService, pluginService

Methods inherited from interface org.scijava.service.Service

registerEventHandlers

Methods inherited from interface org.scijava.plugin.RichPlugin

getIdentifier, log

Methods inherited from interface org.scijava.Contextual

context, getContext, setContext

Methods inherited from interface org.scijava.Prioritized

compareTo, getPriority, setPriority

Methods inherited from interface org.scijava.plugin.HasPluginInfo

getInfo, setInfo

Methods inherited from interface org.scijava.Locatable

getLocation

Methods inherited from interface org.scijava.Versioned

getVersion

Methods inherited from interface org.scijava.Disposable

dispose

Method Detail

getPluginType

default Class<DataHandle<Location>> getPluginType()

Description copied from interface: PTService

Gets the type of plugins managed by this service.

Specified by:

getPluginType in interface PTService<DataHandle<Location>>

getType

default Class<Location> getType()

Description copied from interface: Typed

Gets the type associated with the object.

Specified by:

getType in interface Typed<Location>

exists

default boolean exists(Location location)
                throws IOException

Convenience method to test whether it describes an existing file.

Parameters:

location - the location to test

Returns:

The result of DataHandle.exists() on a newly created handle on this location. Also returns false if the handle can not be created.

Throws:

IOException - if the creation of the handle fails exceptionally

readBuffer

default DataHandle<Location> readBuffer(DataHandle<Location> handle)

Wraps the provided DataHandle in a read-only buffer for accelerated reading.

Parameters:

handle - the handle to wrap

Returns:

The handle wrapped in a read-only buffer, or null if the input handle is null

See Also:

ReadBufferDataHandle(DataHandle)

readBuffer

default DataHandle<Location> readBuffer(Location location)

Creates a DataHandle on the provided Location wrapped in a read-only buffer for accelerated reading.

Parameters:

location - the Location to create a buffered handle on.

Returns:

A DataHandle on the provided location wrapped in a read-only buffer, or null if no handle could be created for the location.

See Also:

ReadBufferDataHandle(DataHandle)

writeBuffer

default DataHandle<Location> writeBuffer(DataHandle<Location> handle)

Wraps the provided DataHandle in a write-only buffer for accelerated writing.

Parameters:

handle - the handle to wrap

Returns:

the handle wrapped in a write-only buffer or null if the provided handle is null

See Also:

WriteBufferDataHandle(DataHandle)