com.mongodb.client.gridfs

类 GridFSUploadStream

java.lang.Object

java.io.OutputStream

com.mongodb.client.gridfs.GridFSUploadStream

所有已实现的接口:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

@NotThreadSafe
public abstract class GridFSUploadStream
extends java.io.OutputStream

A GridFS OutputStream for uploading data into GridFS

Provides the id for the file to be uploaded as well as the write methods of a OutputStream

This implementation of a OutputStream will not throw IOExceptions. However, it will throw a MongoException if there is an error writing to MongoDB.

从以下版本开始:

3.1

构造器概要

构造器

构造器和说明
GridFSUploadStream()

方法概要

限定符和类型	方法和说明
abstract void	abort() Aborts the upload and deletes any data.
abstract void	close()
void	flush()
abstract ObjectId	getFileId() 已过时。 use getObjectId() instead.
abstract BsonValue	getId() Gets the BsonValue for the file to be uploaded
abstract ObjectId	getObjectId() Gets the ObjectId for the file to be uploaded or throws an error if an alternative BsonType has been used for the id.
abstract void	write(byte[] b)
abstract void	write(byte[] b, int off, int len)
abstract void	write(int b)

从类继承的方法 java.lang.Object

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

构造器详细资料

GridFSUploadStream

public GridFSUploadStream()

方法详细资料

getFileId

@Deprecated
public abstract ObjectId getFileId()

已过时。 use getObjectId() instead.

Gets the ObjectId for the file to be uploaded Throws a MongoGridFSException if the file id is not an ObjectId.

返回:

the ObjectId for the file to be uploaded

getObjectId

public abstract ObjectId getObjectId()

Gets the ObjectId for the file to be uploaded or throws an error if an alternative BsonType has been used for the id. Throws a MongoGridFSException if the file id is not an ObjectId.

返回:

the ObjectId for the file to be uploaded

getId

public abstract BsonValue getId()

Gets the BsonValue for the file to be uploaded

返回:

the BsonValue for the file to be uploaded

abort

public abstract void abort()

Aborts the upload and deletes any data.

write

public abstract void write(int b)

指定者:

write 在类中 java.io.OutputStream

write

public abstract void write(byte[] b)

覆盖:

write 在类中 java.io.OutputStream

write

public abstract void write(byte[] b,
                           int off,
                           int len)

覆盖:

write 在类中 java.io.OutputStream

flush

public void flush()

指定者:

flush 在接口中 java.io.Flushable

覆盖:

flush 在类中 java.io.OutputStream

close

public abstract void close()

指定者:

close 在接口中 java.io.Closeable

指定者:

close 在接口中 java.lang.AutoCloseable

覆盖:

close 在类中 java.io.OutputStream