MemoryFileSystem (Apache Jackrabbit 2.20.16 API)

java.lang.Object
- org.apache.jackrabbit.core.fs.mem.MemoryFileSystem

All Implemented Interfaces:

FileSystem
```
public class MemoryFileSystem
extends Object
implements FileSystem
```
An in-memory file system implementation.

Field Summary
- Fields inherited from interface org.apache.jackrabbit.core.fs.FileSystem
  SEPARATOR, SEPARATOR_CHAR

Constructor Summary

Constructors
Constructor and Description

MemoryFileSystem()

Constructors
Constructor and Description
`MemoryFileSystem()`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`close()` Close the file system.
`void`	`createFolder(String folderPath)` Creates the folder named by this path, including any necessary but nonexistent parent folders.
`void`	`deleteFile(String filePath)` Deletes the file denoted by this path.
`void`	`deleteFolder(String folderPath)` Deletes the folder denoted by this path.
`boolean`	`exists(String path)` Tests whether the file system entry denoted by this path exists.
`InputStream`	`getInputStream(String filePath)` Returns an input stream of the contents of the file denoted by this path.
`OutputStream`	`getOutputStream(String filePath)` Returns an output stream for writing bytes to the file denoted by this path.
`boolean`	`hasChildren(String path)` Tests whether the file system entry denoted by this path has child entries.
`void`	`init()` Initialize the file system
`boolean`	`isFile(String path)` Tests whether the file system entry denoted by this path exists and is a file.
`boolean`	`isFolder(String path)` Tests whether the file system entry denoted by this path exists and is a folder.
`long`	`lastModified(String path)` Returns the time that the file system entry denoted by this path was last modified.
`long`	`length(String filePath)` Returns the length of the file denoted by this path.
`String[]`	`list(String folderPath)` Returns an array of strings naming the files and folders in the folder denoted by this path.
`String[]`	`listFiles(String folderPath)` Returns an array of strings naming the files in the folder denoted by this path.
`String[]`	`listFolders(String folderPath)` Returns an array of strings naming the folders in the folder denoted by this path.

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

- Constructor Detail
  - MemoryFileSystem
```
public MemoryFileSystem()
```
- Method Detail
  - close
```
public void close()
```
    Description copied from interface: FileSystem
    
    Close the file system. After calling this method, the file system is no longer accessible.
    
    Specified by:
    
    close in interface FileSystem
  - createFolder
```
public void createFolder(String folderPath)
                  throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Creates the folder named by this path, including any necessary but nonexistent parent folders. Note that if this operation fails it may have succeeded in creating some of the necessary parent folders.
    
    Specified by:
    
    createFolder in interface FileSystem
    
    Parameters:
    
    folderPath - the path of the folder to be created.
    
    Throws:
    
    FileSystemException - if a file system entry denoted by path already exists or if another error occurs.
  - deleteFile
```
public void deleteFile(String filePath)
                throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Deletes the file denoted by this path.
    
    Specified by:
    
    deleteFile in interface FileSystem
    
    Parameters:
    
    filePath - the path of the file to be deleted.
    
    Throws:
    
    FileSystemException - if this path does not denote a file or if another error occurs.
  - deleteFolder
```
public void deleteFolder(String folderPath)
                  throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Deletes the folder denoted by this path. Any contents of this folder (folders and files) will be deleted recursively.
    
    Specified by:
    
    deleteFolder in interface FileSystem
    
    Parameters:
    
    folderPath - the path of the folder to be deleted.
    
    Throws:
    
    FileSystemException - if this path does not denote a folder or if another error occurs.
  - exists
```
public boolean exists(String path)
               throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Tests whether the file system entry denoted by this path exists.
    
    Specified by:
    
    exists in interface FileSystem
    
    Parameters:
    
    path - the path of a file system entry.
    
    Returns:
    
    true if the file system entry at path exists; false otherwise.
    
    Throws:
    
    FileSystemException
  - getInputStream
```
public InputStream getInputStream(String filePath)
                           throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Returns an input stream of the contents of the file denoted by this path.
    
    Specified by:
    
    getInputStream in interface FileSystem
    
    Parameters:
    
    filePath - the path of the file.
    
    Returns:
    
    an input stream of the contents of the file.
    
    Throws:
    
    FileSystemException - if the file does not exist or if it cannot be read from
  - getOutputStream
```
public OutputStream getOutputStream(String filePath)
                             throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Returns an output stream for writing bytes to the file denoted by this path. The file will be created if it doesn't exist. If the file exists, its contents will be overwritten.
    
    Specified by:
    
    getOutputStream in interface FileSystem
    
    Parameters:
    
    filePath - the path of the file.
    
    Returns:
    
    an output stream for writing bytes to the file.
    
    Throws:
    
    FileSystemException - if the file cannot be written to or created
  - hasChildren
```
public boolean hasChildren(String path)
                    throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Tests whether the file system entry denoted by this path has child entries.
    
    Specified by:
    
    hasChildren in interface FileSystem
    
    Parameters:
    
    path - the path of a file system entry.
    
    Returns:
    
    true if the file system entry at path has child entries; false otherwise.
    
    Throws:
    
    FileSystemException
  - init
```
public void init()
```
    Description copied from interface: FileSystem
    
    Initialize the file system
    
    Specified by:
    
    init in interface FileSystem
  - isFile
```
public boolean isFile(String path)
               throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Tests whether the file system entry denoted by this path exists and is a file.
    
    Specified by:
    
    isFile in interface FileSystem
    
    Parameters:
    
    path - the path of a file system entry.
    
    Returns:
    
    true if the file system entry at path is a file; false otherwise.
    
    Throws:
    
    FileSystemException
  - isFolder
```
public boolean isFolder(String path)
                 throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Tests whether the file system entry denoted by this path exists and is a folder.
    
    Specified by:
    
    isFolder in interface FileSystem
    
    Parameters:
    
    path - the path of a file system entry.
    
    Returns:
    
    true if the file system entry at path is a folder; false otherwise.
    
    Throws:
    
    FileSystemException
  - lastModified
```
public long lastModified(String path)
                  throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Returns the time that the file system entry denoted by this path was last modified.
    
    Specified by:
    
    lastModified in interface FileSystem
    
    Parameters:
    
    path - the path of a file system entry.
    
    Returns:
    
    A long value representing the time the file system entry was last modified, measured in milliseconds since the epoch (00:00:00 GMT, January 1, 1970), or 0L if the modification time can't be determined.
    
    Throws:
    
    FileSystemException - if the file system entry does not exist.
  - length
```
public long length(String filePath)
            throws FileSystemException
```
    Description copied from interface: FileSystem
    
    Returns the length of the file denoted by this path.
    
    Specified by:
    
    length in interface FileSystem
    
    Parameters:
    
    filePath - the path of the file.
    
    Returns:
    
    The length, in bytes, of the file denoted by this path, or -1L if the length can't be determined.
    
    Throws:
    
    FileSystemException - if the path does not denote an existing file.
  - list
```
public String[] list(String folderPath)
```
    Description copied from interface: FileSystem
    
    Returns an array of strings naming the files and folders in the folder denoted by this path.
    
    Specified by:
    
    list in interface FileSystem
    
    Parameters:
    
    folderPath - the path of the folder whose contents is to be listed.
    
    Returns:
    
    an array of strings naming the files and folders in the folder denoted by this path.
  - listFiles
```
public String[] listFiles(String folderPath)
```
    Description copied from interface: FileSystem
    
    Returns an array of strings naming the files in the folder denoted by this path.
    
    Specified by:
    
    listFiles in interface FileSystem
    
    Parameters:
    
    folderPath - the path of the folder whose contents is to be listed.
    
    Returns:
    
    an array of strings naming the files in the folder denoted by this path.
  - listFolders
```
public String[] listFolders(String folderPath)
```
    Description copied from interface: FileSystem
    
    Returns an array of strings naming the folders in the folder denoted by this path.
    
    Specified by:
    
    listFolders in interface FileSystem
    
    Parameters:
    
    folderPath - the path of the folder whose contents is to be listed.
    
    Returns:
    
    an array of strings naming the folders in the folder denoted by this path.

Class MemoryFileSystem

Field Summary

Fields inherited from interface org.apache.jackrabbit.core.fs.FileSystem

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

MemoryFileSystem

Method Detail

close

createFolder

deleteFile

deleteFolder

exists

getInputStream

getOutputStream

hasChildren

init

isFile

isFolder

lastModified

length

list

listFiles

listFolders