Java Doc for RAMDirectory.java in  » Net » lucene-connector » org » apache » lucene » store » Java Source Code / Java DocumentationJava Source Code and Java Documentation

Java Source Code / Java Documentation
1. 6.0 JDK Core
2. 6.0 JDK Modules
3. 6.0 JDK Modules com.sun
4. 6.0 JDK Modules com.sun.java
5. 6.0 JDK Modules sun
6. 6.0 JDK Platform
7. Ajax
8. Apache Harmony Java SE
9. Aspect oriented
10. Authentication Authorization
11. Blogger System
12. Build
13. Byte Code
14. Cache
15. Chart
16. Chat
17. Code Analyzer
18. Collaboration
19. Content Management System
20. Database Client
21. Database DBMS
22. Database JDBC Connection Pool
23. Database ORM
24. Development
25. EJB Server geronimo
26. EJB Server GlassFish
27. EJB Server JBoss 4.2.1
28. EJB Server resin 3.1.5
29. ERP CRM Financial
30. ESB
31. Forum
32. GIS
33. Graphic Library
34. Groupware
35. HTML Parser
36. IDE
37. IDE Eclipse
38. IDE Netbeans
39. Installer
40. Internationalization Localization
41. Inversion of Control
42. Issue Tracking
43. J2EE
44. JBoss
45. JMS
46. JMX
47. Library
48. Mail Clients
49. Net
50. Parser
51. PDF
52. Portal
53. Profiler
54. Project Management
55. Report
56. RSS RDF
57. Rule Engine
58. Science
59. Scripting
60. Search Engine
61. Security
62. Sevlet Container
63. Source Control
64. Swing Library
65. Template Engine
66. Test Coverage
67. Testing
68. UML
69. Web Crawler
70. Web Framework
71. Web Mail
72. Web Server
73. Web Services
74. Web Services apache cxf 2.0.1
75. Web Services AXIS2
76. Wiki Engine
77. Workflow Engines
78. XML
79. XML UI
Java
Java Tutorial
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Source Code / Java Documentation » Net » lucene connector » org.apache.lucene.store 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.lucene.store.Directory
      org.apache.lucene.store.RAMDirectory

All known Subclasses:   org.apache.lucene.store.MockRAMDirectory,
RAMDirectory
public class RAMDirectory extends Directory implements Serializable(Code)
A memory-resident Directory implementation. Locking implementation is by default the SingleInstanceLockFactory but can be changed with RAMDirectory.setLockFactory .
version:
   $Id: RAMDirectory.java 581625 2007-10-03 15:24:12Z mikemccand $


Field Summary
 HashMapfileMap
    
 longsizeInBytes
    

Constructor Summary
public  RAMDirectory()
     Constructs an empty Directory .
public  RAMDirectory(Directory dir)
     Creates a new RAMDirectory instance from a different Directory implementation.
public  RAMDirectory(File dir)
     Creates a new RAMDirectory instance from the FSDirectory .
public  RAMDirectory(String dir)
     Creates a new RAMDirectory instance from the FSDirectory .

Method Summary
public  voidclose()
     Closes the store to future operations, releasing associated memory.
public  IndexOutputcreateOutput(String name)
     Creates a new, empty file in the directory with the given name.
public synchronized  voiddeleteFile(String name)
     Removes an existing file in the directory.
final protected  voidensureOpen()
    
final public  booleanfileExists(String name)
     Returns true iff the named file exists in this directory.
final public  longfileLength(String name)
     Returns the length in bytes of a file in the directory.
final public  longfileModified(String name)
     Returns the time the named file was last modified.
final public synchronized  String[]list()
     Returns an array of strings, one for each file in the directory.
public  IndexInputopenInput(String name)
     Returns a stream reading an existing file.
final public synchronized  voidrenameFile(String from, String to)
     Renames an existing file in the directory.
final public synchronized  longsizeInBytes()
     Return total size in bytes of all files in this directory.
public  voidtouchFile(String name)
     Set the modified time of an existing file to now.

Field Detail
fileMap
HashMap fileMap(Code)



sizeInBytes
long sizeInBytes(Code)




Constructor Detail
RAMDirectory
public RAMDirectory()(Code)
Constructs an empty Directory .



RAMDirectory
public RAMDirectory(Directory dir) throws IOException(Code)
Creates a new RAMDirectory instance from a different Directory implementation. This can be used to load a disk-based index into memory.

This should be used only with indices that can fit into memory.

Note that the resulting RAMDirectory instance is fully independent from the original Directory (it is a complete copy). Any subsequent changes to the original Directory will not be visible in the RAMDirectory instance.
Parameters:
  dir - a Directory value
exception:
  IOException - if an error occurs




RAMDirectory
public RAMDirectory(File dir) throws IOException(Code)
Creates a new RAMDirectory instance from the FSDirectory .
Parameters:
  dir - a File specifying the index directory
See Also:   RAMDirectory.RAMDirectory(Directory)



RAMDirectory
public RAMDirectory(String dir) throws IOException(Code)
Creates a new RAMDirectory instance from the FSDirectory .
Parameters:
  dir - a String specifying the full index directory path
See Also:   RAMDirectory.RAMDirectory(Directory)




Method Detail
close
public void close()(Code)
Closes the store to future operations, releasing associated memory.



createOutput
public IndexOutput createOutput(String name) throws IOException(Code)
Creates a new, empty file in the directory with the given name. Returns a stream writing this file.



deleteFile
public synchronized void deleteFile(String name) throws IOException(Code)
Removes an existing file in the directory.
throws:
  IOException - if the file does not exist



ensureOpen
final protected void ensureOpen() throws AlreadyClosedException(Code)

throws:
  AlreadyClosedException - if this IndexReader is closed



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



fileLength
final public long fileLength(String name) throws IOException(Code)
Returns the length in bytes of a file in the directory.
throws:
  IOException - if the file does not exist



fileModified
final public long fileModified(String name) throws IOException(Code)
Returns the time the named file was last modified.
throws:
  IOException - if the file does not exist



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



openInput
public IndexInput openInput(String name) throws IOException(Code)
Returns a stream reading an existing file.



renameFile
final public synchronized void renameFile(String from, String to) throws IOException(Code)
Renames an existing file in the directory.
throws:
  FileNotFoundException - if from does not exist



sizeInBytes
final public synchronized long sizeInBytes()(Code)
Return total size in bytes of all files in this directory. This is currently quantized to RAMOutputStream.BUFFER_SIZE.



touchFile
public void touchFile(String name) throws IOException(Code)
Set the modified time of an existing file to now.
throws:
  IOException - if the file does not exist



Fields inherited from org.apache.lucene.store.Directory
protected LockFactory lockFactory(Code)(Java Doc)

Methods inherited from org.apache.lucene.store.Directory
public void clearLock(String name) throws IOException(Code)(Java Doc)
abstract public void close() throws IOException(Code)(Java Doc)
public static void copy(Directory src, Directory dest, boolean closeDirSrc) throws IOException(Code)(Java Doc)
abstract public IndexOutput createOutput(String name) throws IOException(Code)(Java Doc)
abstract public void deleteFile(String name) throws IOException(Code)(Java Doc)
abstract public boolean fileExists(String name) throws IOException(Code)(Java Doc)
abstract public long fileLength(String name) throws IOException(Code)(Java Doc)
abstract public long fileModified(String name) throws IOException(Code)(Java Doc)
public LockFactory getLockFactory()(Code)(Java Doc)
public String getLockID()(Code)(Java Doc)
abstract public String[] list() throws IOException(Code)(Java Doc)
public Lock makeLock(String name)(Code)(Java Doc)
abstract public IndexInput openInput(String name) throws IOException(Code)(Java Doc)
public IndexInput openInput(String name, int bufferSize) throws IOException(Code)(Java Doc)
abstract public void renameFile(String from, String to) throws IOException(Code)(Java Doc)
public void setLockFactory(LockFactory lockFactory)(Code)(Java Doc)
abstract public void touchFile(String name) throws IOException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.