com.jn.langx.io.resource

接口 WritableResource

所有超级接口:

Resource

public interface WritableResource
extends Resource

方法概要

限定符和类型	方法和说明
OutputStream	getOutputStream() Return an OutputStream for the underlying resource, allowing to (over-)write its content.
Object	getRealResource()
boolean	isWritable() Indicate whether the contents of this resource can be written via getOutputStream().
WritableByteChannel	writableChannel() Return a WritableByteChannel.

从接口继承的方法 com.jn.langx.io.resource.Resource

contentLength, exists, getInputStream, isReadable, readableChannel

方法详细资料

isWritable

boolean isWritable()

Indicate whether the contents of this resource can be written via getOutputStream().

Will be true for typical resource descriptors; note that actual content writing may still fail when attempted. However, a value of false is a definitive indication that the resource content cannot be modified.

另请参阅:

getOutputStream(), Resource.isReadable()

getOutputStream

OutputStream getOutputStream()
                      throws IOException

Return an OutputStream for the underlying resource, allowing to (over-)write its content.

抛出:

IOException - if the stream could not be opened

另请参阅:

Resource.getInputStream()

writableChannel

WritableByteChannel writableChannel()
                             throws IOException

Return a WritableByteChannel.

It is expected that each call creates a fresh channel.

The default implementation returns Channels.newChannel(OutputStream) with the result of getOutputStream().

返回:

the byte channel for the underlying resource (must not be null)

抛出:

FileNotFoundException - if the underlying resource doesn't exist

IOException - if the content channel could not be opened

另请参阅:

getOutputStream()

getRealResource

Object getRealResource()

指定者:

getRealResource 在接口中 Resource