com.qcloud.cos.transfer

类 DownloadImpl

java.lang.Object

com.qcloud.cos.transfer.AbstractTransfer

com.qcloud.cos.transfer.DownloadImpl

所有已实现的接口:

Download, Transfer

public class DownloadImpl
extends AbstractTransfer
implements Download

嵌套类概要

从接口继承的嵌套类/接口 com.qcloud.cos.transfer.Transfer

Transfer.TransferState

字段概要

从类继承的字段 com.qcloud.cos.transfer.AbstractTransfer

listenerChain, monitor, state, stateChangeListeners

构造器概要

构造器

构造器和说明
DownloadImpl(String description, TransferProgress transferProgress, ProgressListenerChain progressListenerChain, COSObject cosObject, TransferStateChangeListener listener, GetObjectRequest getObjectRequest, File file)

方法概要

限定符和类型	方法和说明
void	abort() Cancels this download.
void	abortWithoutNotifyingStateChangeListener() Cancels this download, but skip notifying the state change listeners.
String	getBucketName() The name of the bucket where the object is being downloaded from.
COSObject	getCosObject()
String	getKey() The key under which this object was stored in Qcloud COS.
ObjectMetadata	getObjectMetadata() Returns the ObjectMetadata for the object being downloaded.
PersistableDownload	pause() Pause the current download operation and returns the information that can be used to resume the download at a later time.
void	setCosObject(COSObject cosObject)
void	setState(Transfer.TransferState state) This method is also responsible for firing COMPLETED signal to the listeners.

从类继承的方法 com.qcloud.cos.transfer.AbstractTransfer

addProgressListener, addStateChangeListener, fireProgressEvent, getDescription, getMonitor, getProgress, getState, isDone, notifyStateChangeListeners, removeProgressListener, removeStateChangeListener, rethrowExecutionException, setMonitor, unwrapExecutionException, waitForCompletion, waitForException

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.qcloud.cos.transfer.Transfer

addProgressListener, getDescription, getProgress, getState, isDone, removeProgressListener, waitForCompletion, waitForException

构造器详细资料

DownloadImpl

public DownloadImpl(String description,
                    TransferProgress transferProgress,
                    ProgressListenerChain progressListenerChain,
                    COSObject cosObject,
                    TransferStateChangeListener listener,
                    GetObjectRequest getObjectRequest,
                    File file)

方法详细资料

getObjectMetadata

public ObjectMetadata getObjectMetadata()

Returns the ObjectMetadata for the object being downloaded.

指定者:

getObjectMetadata 在接口中 Download

返回:

The ObjectMetadata for the object being downloaded.

getBucketName

public String getBucketName()

The name of the bucket where the object is being downloaded from.

指定者:

getBucketName 在接口中 Download

返回:

The name of the bucket where the object is being downloaded from.

getKey

public String getKey()

The key under which this object was stored in Qcloud COS.

指定者:

getKey 在接口中 Download

返回:

The key under which this object was stored in Qcloud COS.

abort

public void abort()
           throws IOException

Cancels this download.

指定者:

abort 在接口中 Download

抛出:

IOException

abortWithoutNotifyingStateChangeListener

public void abortWithoutNotifyingStateChangeListener()
                                              throws IOException

Cancels this download, but skip notifying the state change listeners.

抛出:

IOException

getCosObject

public COSObject getCosObject()

setCosObject

public void setCosObject(COSObject cosObject)

setState

public void setState(Transfer.TransferState state)

This method is also responsible for firing COMPLETED signal to the listeners.

覆盖:

setState 在类中 AbstractTransfer

pause

public PersistableDownload pause()
                          throws PauseException

从接口复制的说明: Download

Pause the current download operation and returns the information that can be used to resume the download at a later time. Resuming a download would not perform ETag check as range get is performed for downloading the object's remaining contents. Resuming a download for an object encrypted using CryptoMode#StrictAuthenticatedEncryption would result in CosClientException as authenticity cannot be guaranteed for a range get operation.

指定者:

pause 在接口中 Download

抛出:

PauseException - If any errors were encountered while trying to pause the download.