org.axiondb.engine

Class DiskDatabase

java.lang.Object

org.axiondb.engine.BaseDatabase

org.axiondb.engine.DiskDatabase

All Implemented Interfaces:

Database

public class DiskDatabase
extends BaseDatabase
implements Database

A disk-resident Database.

Version:

$Revision: 1.30 $ $Date: 2007/11/13 19:04:02 $

Field Summary

Fields inherited from class org.axiondb.engine.BaseDatabase

SYSTABLE_DB_LINKS, SYSTABLE_INDEX_INFO

Fields inherited from interface org.axiondb.Database

COMMIT_SIZE

Constructor Summary

Constructors

Constructor and Description
DiskDatabase(java.io.File dbDir)
DiskDatabase(java.lang.String name, java.io.File dbDir)
DiskDatabase(java.lang.String name, java.io.File dbDir, java.util.Properties props)

Method Summary

Modifier and Type	Method and Description
void	checkpoint() Make sure any modified state or data has been written to disk.
void	createSequence(Sequence seq) Create a numeric sequence
protected Table	createSystemTable(java.lang.String name)
void	defrag()
int	defragTable(java.lang.String tableName)
java.io.File	getDBDirectory() Get the directory into which table information is stored, or null.
protected java.io.File	getDbFileName(java.lang.String extension)
TableFactory	getTableFactory(java.lang.String name) Get the TableFactorycurrently registered for the given name, or null.
void	migrate(int version) Migrate from older version to newer version for this database
void	remount(java.io.File newdir) Notify this database that its root directory has been moved to the given location.
void	shutdown() Close this database and free any resources associated with it.

Methods inherited from class org.axiondb.engine.BaseDatabase

addDatabaseModificationListener, addIndex, addIndex, addTable, createDatabaseLink, createMetaDataTables, dropDatabaseLink, dropDependentExternalDBTable, dropDependentViews, dropIndex, dropSequence, dropTable, getBaseProperties, getDatabaseLink, getDatabaseModificationListeners, getDataType, getDependentExternalDBTable, getDependentViews, getFunction, getGlobalVariable, getIndexFactory, getName, getSequence, getSequenceCount, getSequences, getTable, getTable, getTables, getTransactionManager, hasDatabaseLink, hasIndex, hasSequence, hasTable, hasTable, isReadOnly, loadProperties, removeDatabaseModificationListener, renameTable, resolveSelectSelectable, tableAltered

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.axiondb.Database

addDatabaseModificationListener, addIndex, addIndex, addTable, createDatabaseLink, dropDatabaseLink, dropDependentExternalDBTable, dropDependentViews, dropIndex, dropSequence, dropTable, getDatabaseLink, getDatabaseModificationListeners, getDataType, getDependentExternalDBTable, getDependentViews, getFunction, getGlobalVariable, getIndexFactory, getName, getSequence, getTable, getTable, getTransactionManager, hasDatabaseLink, hasIndex, hasSequence, hasTable, hasTable, isReadOnly, renameTable, tableAltered

Constructor Detail

DiskDatabase

public DiskDatabase(java.io.File dbDir)
             throws AxionException

Throws:

AxionException

DiskDatabase

public DiskDatabase(java.lang.String name,
                    java.io.File dbDir)
             throws AxionException

Throws:

AxionException

DiskDatabase

public DiskDatabase(java.lang.String name,
                    java.io.File dbDir,
                    java.util.Properties props)
             throws AxionException

Throws:

AxionException

Method Detail

getDbFileName

protected java.io.File getDbFileName(java.lang.String extension)

checkpoint

public void checkpoint()
                throws AxionException

Description copied from interface: Database

Make sure any modified state or data has been written to disk.

Specified by:

checkpoint in interface Database

Overrides:

checkpoint in class BaseDatabase

Throws:

AxionException

createSequence

public void createSequence(Sequence seq)
                    throws AxionException

Description copied from interface: Database

Create a numeric sequence

Specified by:

createSequence in interface Database

Overrides:

createSequence in class BaseDatabase

Throws:

AxionException

defrag

public void defrag()
            throws AxionException

Throws:

AxionException

defragTable

public int defragTable(java.lang.String tableName)
                throws AxionException

Throws:

AxionException

getDBDirectory

public java.io.File getDBDirectory()

Description copied from interface: Database

Get the directory into which table information is stored, or null.

Specified by:

getDBDirectory in interface Database

getTableFactory

public TableFactory getTableFactory(java.lang.String name)

Description copied from interface: Database

Get the TableFactorycurrently registered for the given name, or null.

Specified by:

getTableFactory in interface Database

Overrides:

getTableFactory in class BaseDatabase

migrate

public void migrate(int version)
             throws AxionException

Description copied from class: BaseDatabase

Migrate from older version to newer version for this database

Specified by:

migrate in interface Database

Overrides:

migrate in class BaseDatabase

Throws:

AxionException

remount

public void remount(java.io.File newdir)
             throws AxionException

Description copied from interface: Database

Notify this database that its root directory has been moved to the given location. (E.g., the CD containing the data for a CD-resident database has changed drives.)

Specified by:

remount in interface Database

Overrides:

remount in class BaseDatabase

Throws:

AxionException

shutdown

public void shutdown()
              throws AxionException

Description copied from interface: Database

Close this database and free any resources associated with it.

Specified by:

shutdown in interface Database

Overrides:

shutdown in class BaseDatabase

Throws:

AxionException

createSystemTable

protected Table createSystemTable(java.lang.String name)

Specified by:

createSystemTable in class BaseDatabase