org.apache.paimon.fs

类 SeekableInputStream

java.lang.Object

java.io.InputStream

org.apache.paimon.fs.SeekableInputStream

所有已实现的接口:

Closeable, AutoCloseable

直接已知子类:

LocalFileIO.LocalSeekableInputStream, SeekableInputStreamWrapper

@Public
public abstract class SeekableInputStream
extends InputStream

SeekableInputStream provides seek methods.

从以下版本开始:

0.4.0

构造器概要

构造器

构造器和说明
SeekableInputStream()

方法概要

限定符和类型	方法和说明
abstract void	close() Closes this input stream and releases any system resources associated with the stream.
abstract long	getPos() Gets the current position in the input stream.
abstract int	read(byte[] b, int off, int len) Reads up to len bytes of data from the input stream into an array of bytes.
abstract void	seek(long desired) Seek to the given offset from the start of the file.

从类继承的方法 java.io.InputStream

available, mark, markSupported, read, read, reset, skip

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

SeekableInputStream

public SeekableInputStream()

方法详细资料

seek

public abstract void seek(long desired)
                   throws IOException

Seek to the given offset from the start of the file. The next read() will be from that location. Can't seek past the end of the stream.

参数:

desired - the desired offset

抛出:

IOException - Thrown if an error occurred while seeking inside the input stream.

getPos

public abstract long getPos()
                     throws IOException

Gets the current position in the input stream.

返回:

current position in the input stream

抛出:

IOException - Thrown if an I/O error occurred in the underlying stream implementation while accessing the stream's position.

read

public abstract int read(byte[] b,
                         int off,
                         int len)
                  throws IOException

Reads up to len bytes of data from the input stream into an array of bytes. An attempt is made to read as many as len bytes, but a smaller number may be read. The number of bytes actually read is returned as an integer.

覆盖:

read 在类中 InputStream

抛出:

IOException

close

public abstract void close()
                    throws IOException

Closes this input stream and releases any system resources associated with the stream.

The close method of InputStream does nothing.

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

覆盖:

close 在类中 InputStream

抛出:

IOException - if an I/O error occurs.