com.jn.langx.io.resource

类 AbstractResource<E>

java.lang.Object

com.jn.langx.io.resource.AbstractResource<E>

所有已实现的接口:

Resource<E>

直接已知子类:

AbstractPathableResource, ByteArrayResource, InputStreamResource

public abstract class AbstractResource<E>
extends Object
implements Resource<E>

构造器概要

构造器

构造器和说明
AbstractResource()

方法概要

限定符和类型	方法和说明
boolean	exists() Determine whether this resource actually exists in physical form.
boolean	isReadable() Indicate whether non-empty contents of this resource can be read via Resource.getInputStream().
ReadableByteChannel	readableChannel() Return a ReadableByteChannel.

从类继承的方法 java.lang.Object

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

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

contentLength, getInputStream, getRealResource

构造器详细资料

AbstractResource

public AbstractResource()

方法详细资料

isReadable

public boolean isReadable()

从接口复制的说明: Resource

Indicate whether non-empty contents of this resource can be read via Resource.getInputStream().

Will be true for typical resource descriptors that exist since it strictly implies Resource.exists() semantics as of 5.1. Note that actual content reading may still fail when attempted. However, a value of false is a definitive indication that the resource content cannot be read.

指定者:

isReadable 在接口中 Resource<E>

另请参阅:

Resource.getInputStream(), Resource.exists()

exists

public boolean exists()

从接口复制的说明: Resource

Determine whether this resource actually exists in physical form.

This method performs a definitive existence check, whereas the existence of a Resource handle only guarantees a valid descriptor handle.

指定者:

exists 在接口中 Resource<E>

readableChannel

public ReadableByteChannel readableChannel()
                                    throws IOException

从接口复制的说明: Resource

Return a ReadableByteChannel.

It is expected that each call creates a fresh channel.

The default implementation returns Channels.newChannel(InputStream) with the result of Resource.getInputStream().

指定者:

readableChannel 在接口中 Resource<E>

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:

Resource.getInputStream()