AbstractInputStream

java.lang.Object
- java.io.InputStream
- - org.apache.commons.io.input.AbstractInputStream

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

Direct Known Subclasses:

CircularInputStream, MemoryMappedFileInputStream, NullInputStream, RandomAccessFileInputStream, ReaderInputStream
```
public abstract class AbstractInputStream
extends java.io.InputStream
```
Abstracts some InputStream operations for implementations in this package.

Since:

2.17.0

Field Summary

Fields
Modifier and Type Field Description

private boolean closed
Whether close() completed successfully.

Constructor Summary

Constructors
Constructor Description

AbstractInputStream()
Constructs a new instance for subclasses.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) void`	`checkOpen()`	Checks if this instance is closed and throws an IOException if so.
`void`	`close()`
`boolean`	`isClosed()`	Tests whether this instance is closed; if `close()` completed successfully.
`void`	`setClosed(boolean closed)`	Sets whether this instance is closed.

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

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

- Field Detail
  - closed
```
private boolean closed
```
    Whether close() completed successfully.
- Constructor Detail
  - AbstractInputStream
```
public AbstractInputStream()
```
    Constructs a new instance for subclasses.
- Method Detail
  - checkOpen
```
void checkOpen()
        throws java.io.IOException
```
    Checks if this instance is closed and throws an IOException if so.
    
    Throws:
    
    java.io.IOException - if this instance is closed.
  - close
```
public void close()
           throws java.io.IOException
```
    Specified by:
    
    close in interface java.lang.AutoCloseable
    
    Specified by:
    
    close in interface java.io.Closeable
    
    Overrides:
    
    close in class java.io.InputStream
    
    Throws:
    
    java.io.IOException
  - isClosed
```
public boolean isClosed()
```
    Tests whether this instance is closed; if close() completed successfully.
    
    Returns:
    
    whether this instance is closed.
  - setClosed
```
public void setClosed(boolean closed)
```
    Sets whether this instance is closed.
    
    Parameters:
    
    closed - whether this instance is closed.