org.apache.lucene.store
Class RAMDirectory

java.lang.Object
  |
  +--org.apache.lucene.store.Directory
        |
        +--org.apache.lucene.store.RAMDirectory

public final class RAMDirectory
extends Directory


Constructor Summary
RAMDirectory()
           
 
Method Summary
 void close()
          Closes the store to future operations.
 OutputStream createFile(String name)
          Creates a new, empty file in the directory with the given name.
 void deleteFile(String name)
          Removes an existing file in the directory.
 boolean fileExists(String name)
          Returns true iff the named file exists in this directory.
 long fileLength(String name)
          Returns the length in bytes of a file in the directory.
 long fileModified(String name)
          Returns the time the named file was last modified.
 String[] list()
          Returns an array of strings, one for each file in the directory.
 Lock makeLock(String name)
          Construct a Lock.
 InputStream openFile(String name)
          Returns a stream reading an existing file.
 void renameFile(String from, String to)
          Removes an existing file in the directory.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

RAMDirectory

public RAMDirectory()
Method Detail

list

public final String[] list()
Returns an array of strings, one for each file in the directory.

Specified by:
list in class Directory

fileExists

public final boolean fileExists(String name)
Returns true iff the named file exists in this directory.

Specified by:
fileExists in class Directory

fileModified

public final long fileModified(String name)
                        throws IOException
Returns the time the named file was last modified.

Specified by:
fileModified in class Directory
IOException

fileLength

public final long fileLength(String name)
Returns the length in bytes of a file in the directory.

Specified by:
fileLength in class Directory

deleteFile

public final void deleteFile(String name)
Removes an existing file in the directory.

Specified by:
deleteFile in class Directory

renameFile

public final void renameFile(String from,
                             String to)
Removes an existing file in the directory.

Specified by:
renameFile in class Directory

createFile

public final OutputStream createFile(String name)
Creates a new, empty file in the directory with the given name. Returns a stream writing this file.

Specified by:
createFile in class Directory

openFile

public final InputStream openFile(String name)
Returns a stream reading an existing file.

Specified by:
openFile in class Directory

makeLock

public final Lock makeLock(String name)
Construct a Lock.

Specified by:
makeLock in class Directory
Parameters:
name - the name of the lock file

close

public final void close()
Closes the store to future operations.

Specified by:
close in class Directory


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