org.apache.activemq.kaha.impl.index.tree
Class TreeIndex

java.lang.Object
  org.apache.activemq.kaha.impl.index.tree.TreeIndex

All Implemented Interfaces:

Index

public class TreeIndex
extends Object
implements Index

BTree implementation

Constructor Summary

TreeIndex(File directory, String name, IndexManager indexManager)
Constructor

Method Summary

void	clear() clear the index
boolean	containsKey(Object key)
void	delete() delete all state associated with the index
StoreEntry	get(Object key)
int	getKeySize()
int	getPageCacheSize()
int	getPageSize()
int	getSize() return the size of the index
boolean	isEnablePageCaching()
boolean	isTransient()
void	load() load indexes
protected void	openIndexFile()
StoreEntry	remove(Object key) remove the index key
void	setEnablePageCaching(boolean enablePageCaching)
void	setKeyMarshaller(Marshaller marshaller) Set the marshaller for key objects
void	setKeySize(int keySize)
void	setPageCacheSize(int pageCacheSize)
void	setPageSize(int pageSize)
void	store(Object key, StoreEntry value) store the key, item
void	unload() unload indexes

Methods inherited from class java.lang.Object

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

Constructor Detail

TreeIndex

public TreeIndex(File directory,
                 String name,
                 IndexManager indexManager)
          throws IOException

Constructor

Parameters:

directory -

name -

indexManager -

Throws:

IOException

Method Detail

setKeyMarshaller

public void setKeyMarshaller(Marshaller marshaller)

Set the marshaller for key objects

Specified by:

setKeyMarshaller in interface Index

Parameters:

marshaller -

getKeySize

public int getKeySize()

Returns:

the keySize

setKeySize

public void setKeySize(int keySize)

Parameters:

keySize - the keySize to set

getPageSize

public int getPageSize()

Returns:

the pageSize

setPageSize

public void setPageSize(int pageSize)

Parameters:

pageSize - the pageSize to set

isTransient

public boolean isTransient()

Specified by:

isTransient in interface Index

Returns:

true if the index is transient

isEnablePageCaching

public boolean isEnablePageCaching()

Returns:

the enablePageCaching

setEnablePageCaching

public void setEnablePageCaching(boolean enablePageCaching)

Parameters:

enablePageCaching - the enablePageCaching to set

getPageCacheSize

public int getPageCacheSize()

Returns:

the pageCacheSize

setPageCacheSize

public void setPageCacheSize(int pageCacheSize)

Parameters:

pageCacheSize - the pageCacheSize to set

load

public void load()

Description copied from interface: Index

load indexes

Specified by:

load in interface Index

unload

public void unload()
            throws IOException

Description copied from interface: Index

unload indexes

Specified by:

unload in interface Index

Throws:

IOException

store

public void store(Object key,
                  StoreEntry value)
           throws IOException

Description copied from interface: Index

store the key, item

Specified by:

store in interface Index

Throws:

IOException

get

public StoreEntry get(Object key)
               throws IOException

Specified by:

get in interface Index

Returns:

the entry

Throws:

IOException

remove

public StoreEntry remove(Object key)
                  throws IOException

Description copied from interface: Index

remove the index key

Specified by:

remove in interface Index

Returns:

StoreEntry removed

Throws:

IOException

containsKey

public boolean containsKey(Object key)
                    throws IOException

Specified by:

containsKey in interface Index

Returns:

true if it contains the key

Throws:

IOException

clear

public void clear()
           throws IOException

Description copied from interface: Index

clear the index

Specified by:

clear in interface Index

Throws:

IOException

delete

public void delete()
            throws IOException

Description copied from interface: Index

delete all state associated with the index

Specified by:

delete in interface Index

Throws:

IOException

openIndexFile

protected void openIndexFile()
                      throws IOException

Throws:

IOException

getSize

public int getSize()

Description copied from interface: Index

return the size of the index

Specified by:

getSize in interface Index

Returns: