net.sf.farrago.namespace.impl
Class MedAbstractLocalDataServer

java.lang.Object
  net.sf.farrago.plugin.FarragoAbstractPluginBase
      net.sf.farrago.namespace.impl.MedAbstractBase
          net.sf.farrago.namespace.impl.MedAbstractDataServer
              net.sf.farrago.namespace.impl.MedAbstractLocalDataServer

All Implemented Interfaces:

FarragoMedDataServer, FarragoMedLocalDataServer, FarragoAllocation, ClosableAllocation

Direct Known Subclasses:

MedAbstractFennelDataServer

public abstract class MedAbstractLocalDataServer
extends MedAbstractDataServer
implements FarragoMedLocalDataServer

MedAbstractLocalDataServer is an abstract base class for implementations of the FarragoMedLocalDataServer interface.

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/namespace/impl/MedAbstractLocalDataServer.java#15 $

Author:

John V. Sichi

Field Summary

private FennelDbHandle

fennelDbHandle

Fields inherited from class net.sf.farrago.plugin.FarragoAbstractPluginBase

BOOLEAN_CHOICES_DEFAULT_FALSE, BOOLEAN_CHOICES_DEFAULT_TRUE, EMPTY_DRIVER_PROPERTIES

Fields inherited from interface net.sf.farrago.namespace.FarragoMedDataServer

PROP_SERVER_NAME, PROP_SERVER_TYPE, PROP_SERVER_VERSION

Constructor Summary

protected

MedAbstractLocalDataServer(String serverMofId, Properties props)

Method Summary

FennelDbHandle	getFennelDbHandle()
FarragoMedNameDirectory	getNameDirectory() Gets a FarragoMedNameDirectory corresponding to this server.
void	setFennelDbHandle(FennelDbHandle fennelDbHandle) Sets the Fennel database handle to use for accessing local storage.
boolean	supportsAlterTableAddColumn() Checks whether ALTER TABLE ADD COLUMN is implemented for tables stored by this local data server.
void	validateTableDefinition(FemLocalTable table, FemLocalIndex generatedPrimaryKeyIndex) Validates the definition of a table being created.
void	validateTableDefinition(FemLocalTable table, FemLocalIndex generatedPrimaryKeyIndex, boolean creation) Validates the definition of a table being created.

Methods inherited from class net.sf.farrago.namespace.impl.MedAbstractDataServer

closeAllocation, getLoopbackDataSource, getProperties, getRuntimeSupport, getServerMofId, registerRelMetadataProviders, registerRules, releaseResources, setLoopbackDataSource

Methods inherited from class net.sf.farrago.plugin.FarragoAbstractPluginBase

getBooleanProperty, getByteProperty, getDoubleProperty, getFloatProperty, getIntProperty, getLongProperty, getShortProperty, requireProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.farrago.namespace.FarragoMedLocalDataServer

computeIndexStats, constructIndexBuildPlan, createIndex, dropIndex, versionIndexRoot

Methods inherited from interface net.sf.farrago.namespace.FarragoMedDataServer

getRuntimeSupport, newColumnSet, registerRelMetadataProviders, registerRules, releaseResources, setLoopbackDataSource

Methods inherited from interface org.eigenbase.util.ClosableAllocation

closeAllocation

Field Detail

fennelDbHandle

private FennelDbHandle fennelDbHandle

Constructor Detail

MedAbstractLocalDataServer

protected MedAbstractLocalDataServer(String serverMofId,
                                     Properties props)

Method Detail

getFennelDbHandle

public FennelDbHandle getFennelDbHandle()

Returns:

the Fennel database handle to use for accessing local storage

getNameDirectory

public FarragoMedNameDirectory getNameDirectory()
                                         throws SQLException

Description copied from interface: FarragoMedDataServer

Gets a FarragoMedNameDirectory corresponding to this server.

Specified by:

getNameDirectory in interface FarragoMedDataServer

Overrides:

getNameDirectory in class MedAbstractDataServer

Returns:

directory, or null if this server does not have the required metadata capability

Throws:

SQLException - if directory access is unsuccessful (but not if directory access is unsupported)

setFennelDbHandle

public void setFennelDbHandle(FennelDbHandle fennelDbHandle)

Description copied from interface: FarragoMedLocalDataServer

Sets the Fennel database handle to use for accessing local storage.

Specified by:

setFennelDbHandle in interface FarragoMedLocalDataServer

Parameters:

fennelDbHandle - the handle to use

validateTableDefinition

public void validateTableDefinition(FemLocalTable table,
                                    FemLocalIndex generatedPrimaryKeyIndex)
                             throws SQLException

Description copied from interface: FarragoMedLocalDataServer

Validates the definition of a table being created. May have side-effects such as creating additional system-maintained indexes.

Specified by:

validateTableDefinition in interface FarragoMedLocalDataServer

Parameters:

table - definition of the table being created

generatedPrimaryKeyIndex - if non-null, a reference to an index generated by the system to enforce the primary key

Throws:

SQLException

validateTableDefinition

public void validateTableDefinition(FemLocalTable table,
                                    FemLocalIndex generatedPrimaryKeyIndex,
                                    boolean creation)
                             throws SQLException

Description copied from interface: FarragoMedLocalDataServer

Validates the definition of a table being created. May have side-effects such as creating additional system-maintained indexes.

Specified by:

validateTableDefinition in interface FarragoMedLocalDataServer

Parameters:

table - definition of the table being created

generatedPrimaryKeyIndex - if non-null, a reference to an index generated by the system to enforce the primary key

creation - true if the table being validated is being newly created

Throws:

SQLException

supportsAlterTableAddColumn

public boolean supportsAlterTableAddColumn()

Description copied from interface: FarragoMedLocalDataServer

Checks whether ALTER TABLE ADD COLUMN is implemented for tables stored by this local data server.

Specified by:

supportsAlterTableAddColumn in interface FarragoMedLocalDataServer

Returns:

whether ALTER TABLE ADD COLUMN can be executed