org.opensolaris.opengrok.index

Class IndexDatabase

java.lang.Object

org.opensolaris.opengrok.index.IndexDatabase

public class IndexDatabase
extends java.lang.Object

This class is used to create / update the index databases. Currently we use one index database per project.

Constructor Summary

Constructors

Constructor and Description
IndexDatabase() Create a new instance of the Index Database.
IndexDatabase(Project project) Create a new instance of an Index Database for a given project

Method Summary

Methods

Modifier and Type	Method and Description
boolean	addDirectory(java.lang.String dir) By default the indexer will traverse all directories in the project.
void	addIndexChangedListener(IndexChangedListener listener) Register an object to receive events when modifications is done to the index database.
void	createSpellingSuggestions() Generate a spelling suggestion for the definitions stored in defs
boolean	equals(java.lang.Object obj)
static org.apache.lucene.index.IndexReader	getIndexReader(java.lang.String path) Get an indexReader for the Index database where a given file
int	hashCode()
void	interrupt() Interrupt the index generation (and the index generation will stop as soon as possible)
static void	listAllFiles() List all files in all of the index databases
static void	listAllFiles(java.util.List<java.lang.String> subFiles) List all files in some of the index databases
void	listFiles() List all of the files in this index database
void	listTokens(int freq)
void	optimize() Optimize the index database
void	removeIndexChangedListener(IndexChangedListener listener) Remove an object from the lists of objects to receive events when modifications is done to the index database
void	update() Update the content of this index database
static void	update(java.util.concurrent.ExecutorService executor, IndexChangedListener listener, java.util.List<java.lang.String> paths) Update the index database for a number of sub-directories
static void	updateAll(java.util.concurrent.ExecutorService executor) Update the index database for all of the projects.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

IndexDatabase

public IndexDatabase()
              throws java.io.IOException

Create a new instance of the Index Database. Use this constructor if you don't use any projects

Throws:

java.io.IOException - if an error occurs while creating directories

IndexDatabase

public IndexDatabase(Project project)
              throws java.io.IOException

Create a new instance of an Index Database for a given project

Parameters:

project - the project to create the database for

Throws:

java.io.IOException - if an errror occurs while creating directories

Method Detail

updateAll

public static void updateAll(java.util.concurrent.ExecutorService executor)
                      throws java.io.IOException

Update the index database for all of the projects. Print progress to standard out.

Parameters:

executor - An executor to run the job

Throws:

java.io.IOException - if an error occurs

update

public static void update(java.util.concurrent.ExecutorService executor,
          IndexChangedListener listener,
          java.util.List<java.lang.String> paths)
                   throws java.io.IOException

Update the index database for a number of sub-directories

Parameters:

executor - An executor to run the job

listener - where to signal the changes to the database

paths -

Throws:

java.io.IOException - if an error occurs

addDirectory

public boolean addDirectory(java.lang.String dir)

By default the indexer will traverse all directories in the project. If you add directories with this function update will just process the specified directories.

Parameters:

dir - The directory to scan

Returns:

true if the file is added, false oth

update

public void update()
            throws java.io.IOException,
                   HistoryException

Update the content of this index database

Throws:

java.io.IOException - if an error occurs

HistoryException - if an error occurs when accessing the history

optimize

public void optimize()

Optimize the index database

createSpellingSuggestions

public void createSpellingSuggestions()

Generate a spelling suggestion for the definitions stored in defs

interrupt

public void interrupt()

Interrupt the index generation (and the index generation will stop as soon as possible)

addIndexChangedListener

public void addIndexChangedListener(IndexChangedListener listener)

Register an object to receive events when modifications is done to the index database.

Parameters:

listener - the object to receive the events

removeIndexChangedListener

public void removeIndexChangedListener(IndexChangedListener listener)

Remove an object from the lists of objects to receive events when modifications is done to the index database

Parameters:

listener - the object to remove

listAllFiles

public static void listAllFiles()
                         throws java.io.IOException

List all files in all of the index databases

Throws:

java.io.IOException - if an error occurs

listAllFiles

public static void listAllFiles(java.util.List<java.lang.String> subFiles)
                         throws java.io.IOException

List all files in some of the index databases

Parameters:

subFiles - Subdirectories for the various projects to list the files for (or null or an empty list to dump all projects)

Throws:

java.io.IOException - if an error occurs

listFiles

public void listFiles()
               throws java.io.IOException

List all of the files in this index database

Throws:

java.io.IOException - If an IO error occurs while reading from the database

listTokens

public void listTokens(int freq)
                throws java.io.IOException

Throws:

java.io.IOException

getIndexReader

public static org.apache.lucene.index.IndexReader getIndexReader(java.lang.String path)

Get an indexReader for the Index database where a given file

Parameters:

path - the file to get the database for

Returns:

The index database where the file should be located or null if it cannot be located.

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object