BlockedByteArrayInputStream (Apache Derby V10.14 Internals)

java.lang.Object
- java.io.InputStream
- - org.apache.derby.impl.io.vfmem.BlockedByteArrayInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable
```
class BlockedByteArrayInputStream
extends java.io.InputStream
```
An input stream reading from a blocked byte array.

Field Summary

Fields
Modifier and Type Field Description

private long pos
The current position of the stream.

private BlockedByteArray src
The underlying source.

Fields
Modifier and Type	Field	Description
`private long`	`pos`	The current position of the stream.
`private BlockedByteArray`	`src`	The underlying source.

Constructor Summary

Constructors
Constructor Description

BlockedByteArrayInputStream(BlockedByteArray src, long pos)
Creates a new input stream reading from a blocked byte array.

Constructors
Constructor	Description
`BlockedByteArrayInputStream(BlockedByteArray src, long pos)`	Creates a new input stream reading from a blocked byte array.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Closes the stream.
`(package private) long`	`getPosition()`	Returns the current position.
`int`	`read()`	Reads a single byte.
`int`	`read(byte[] buf, int offset, int len)`	Reads up to `len` bytes.
`(package private) void`	`setPosition(long newPos)`	Sets the position.

Methods inherited from class java.io.InputStream
available, mark, markSupported, read, readAllBytes, readNBytes, reset, skip, transferTo

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - src
```
private BlockedByteArray src
```
    The underlying source. Set to null when closed.
  - pos
```
private long pos
```
    The current position of the stream.
- Constructor Detail
  - BlockedByteArrayInputStream
```
public BlockedByteArrayInputStream(BlockedByteArray src,
                                   long pos)
```
    Creates a new input stream reading from a blocked byte array.
    
    Parameters:
    
    src - the source blocked byte array
    
    pos - the initial position to start reading from
- Method Detail
  - setPosition
```
void setPosition(long newPos)
```
    Sets the position.
    
    Parameters:
    
    newPos - the new byte position
  - getPosition
```
long getPosition()
```
    Returns the current position.
    
    Returns:
    
    The current byte position.
  - read
```
public int read()
```
    Reads a single byte.
    
    Specified by:
    
    read in class java.io.InputStream
    
    Returns:
    
    A byte.
  - read
```
public int read(byte[] buf,
                int offset,
                int len)
```
    Reads up to len bytes.
    
    Overrides:
    
    read in class java.io.InputStream
    
    Parameters:
    
    buf - destination buffer
    
    offset - offset into the destination buffer
    
    len - number of bytes to read
    
    Returns:
    
    The number of bytes read.
  - close
```
public void close()
```
    Closes the stream.
    
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Specified by:
    
    close in interface java.io.Closeable
    
    Overrides:
    
    close in class java.io.InputStream

Class BlockedByteArrayInputStream

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.io.InputStream

Methods inherited from class java.lang.Object

Field Detail

src

pos

Constructor Detail

BlockedByteArrayInputStream

Method Detail

setPosition

getPosition

read

read

close