com.ados.hestia.utils.io
Class SmartStore

java.lang.Object
  com.ados.hestia.utils.io.SmartStore

All Implemented Interfaces:

IStore, Serializable

public class SmartStore
extends Object
implements IStore

Automatically switch Memory based IStore File based IStore.

Version:

$Revision: 1312 $ $Date: 2005-11-09 07:34:17 +0900 $

See Also:

FileStore, MemoryStore, This is used to prevent using uncontroling memory resources.
If Store with big data size will be found then automatically
MemoryStore will be converted to FileStore and futher FileStore
will be used.
, Serialized Form

Nested Class Summary

protected class

SmartStore.SmartStoreOutStream

Field Summary

protected File	m_baseFolder Temporary folder where FileStore will be allocated.
protected String	m_id
protected String	m_repositoryID
protected IStore	m_store
protected static int	MEMORY_LIMIT

Constructor Summary

SmartStore(String repositoryID, File baseFolder)

Method Summary

OutputStream	createStream() Create output stream to write data.
protected IStore	getActiveStore()
String	getID() Returns id of store.
long	getSize() Returns size of data at store.
InputStream	openSharedStream() Open shared stream to read data.
InputStream	openStream() Open ordinary stream to read data.

Methods inherited from class java.lang.Object

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

Field Detail

MEMORY_LIMIT

protected static final int MEMORY_LIMIT

See Also:

Constant Field Values

m_store

protected IStore m_store

m_id

protected String m_id

m_repositoryID

protected String m_repositoryID

m_baseFolder

protected File m_baseFolder

Temporary folder where FileStore will be allocated.

Constructor Detail

SmartStore

public SmartStore(String repositoryID,
                  File baseFolder)

Method Detail

createStream

public OutputStream createStream()
                          throws IOException

Description copied from interface: IStore

Create output stream to write data.

Specified by:

createStream in interface IStore

Returns:

create opened stream

Throws:

IOException - if stream can not be opened

See Also:

com.ados.hestia.store.IStore#createStream()

getActiveStore

protected IStore getActiveStore()
                         throws IOException

Throws:

IOException

getSize

public long getSize()

Description copied from interface: IStore

Returns size of data at store.

Specified by:

getSize in interface IStore

Returns:

size of data at store

See Also:

com.ados.hestia.store.IStore#getSize()

openSharedStream

public InputStream openSharedStream()
                             throws IOException

Description copied from interface: IStore

Open shared stream to read data.

Specified by:

openSharedStream in interface IStore

Returns:

opened shared stream

Throws:

IOException - if stream can not be opened

See Also:

com.ados.hestia.store.IStore#openSharedStream()

openStream

public InputStream openStream()
                       throws IOException

Description copied from interface: IStore

Open ordinary stream to read data.

Specified by:

openStream in interface IStore

Returns:

opened stream

Throws:

IOException - if stream can not be opened

See Also:

com.ados.hestia.store.IStore#openStream()

getID

public String getID()

Description copied from interface: IStore

Returns id of store.

Specified by:

getID in interface IStore

Returns:

id of store.

See Also:

com.ados.hestia.store.IStore#getID()