FileAlterationObserver.Builder

java.lang.Object
- org.apache.commons.io.build.AbstractSupplier<T,B>
- - org.apache.commons.io.build.AbstractOriginSupplier<FileAlterationObserver,FileAlterationObserver.Builder>
  - - org.apache.commons.io.monitor.FileAlterationObserver.Builder

All Implemented Interfaces:

IOSupplier<FileAlterationObserver>

Enclosing class:

FileAlterationObserver
```
public static final class FileAlterationObserver.Builder
extends AbstractOriginSupplier<FileAlterationObserver,FileAlterationObserver.Builder>
```
Builds instances of FileAlterationObserver.

Since:

2.18.0

Field Summary

Fields
Modifier and Type Field Description

private java.io.FileFilter fileFilter

private IOCase ioCase

private FileEntry rootEntry

Constructor Summary

Constructors
Modifier Constructor Description

private Builder()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`FileAlterationObserver`	`get()`	Gets a new `FileAlterationObserver` instance.
`FileAlterationObserver.Builder`	`setFileFilter(java.io.FileFilter fileFilter)`	Sets the file filter or null if none.
`FileAlterationObserver.Builder`	`setIOCase(IOCase ioCase)`	Sets what case sensitivity to use comparing file names, null means system sensitive.
`FileAlterationObserver.Builder`	`setRootEntry(FileEntry rootEntry)`	Sets the root directory to observe.

Methods inherited from class org.apache.commons.io.build.AbstractOriginSupplier
checkOrigin, getOrigin, hasOrigin, newByteArrayOrigin, newCharSequenceOrigin, newFileOrigin, newFileOrigin, newInputStreamOrigin, newOutputStreamOrigin, newPathOrigin, newPathOrigin, newRandomAccessFileOrigin, newRandomAccessFileOrigin, newReaderOrigin, newURIOrigin, newWriterOrigin, setByteArray, setCharSequence, setFile, setFile, setInputStream, setOrigin, setOutputStream, setPath, setPath, setRandomAccessFile, setRandomAccessFile, setReader, setURI, setWriter

Methods inherited from class org.apache.commons.io.build.AbstractSupplier
asThis

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

Methods inherited from interface org.apache.commons.io.function.IOSupplier
asSupplier, getUnchecked

- Field Detail
  - rootEntry
```
private FileEntry rootEntry
```
  - fileFilter
```
private java.io.FileFilter fileFilter
```
  - ioCase
```
private IOCase ioCase
```
- Constructor Detail
  - Builder
```
private Builder()
```
- Method Detail
  - get
```
public FileAlterationObserver get()
                           throws java.io.IOException
```
    Gets a new FileAlterationObserver instance.
    
    Returns:
    
    a result.
    
    Throws:
    
    java.io.IOException - if an I/O error occurs converting to an File using AbstractOrigin.getFile().
    
    See Also:
    
    IOSupplier.getUnchecked()
  - setFileFilter
```
public FileAlterationObserver.Builder setFileFilter(java.io.FileFilter fileFilter)
```
    Sets the file filter or null if none.
    
    Parameters:
    
    fileFilter - file filter or null if none.
    
    Returns:
    
    This instance.
  - setIOCase
```
public FileAlterationObserver.Builder setIOCase(IOCase ioCase)
```
    Sets what case sensitivity to use comparing file names, null means system sensitive.
    
    Parameters:
    
    ioCase - what case sensitivity to use comparing file names, null means system sensitive.
    
    Returns:
    
    This instance.
  - setRootEntry
```
public FileAlterationObserver.Builder setRootEntry(FileEntry rootEntry)
```
    Sets the root directory to observe.
    
    Parameters:
    
    rootEntry - the root directory to observe.
    
    Returns:
    
    This instance.