net.sf.farrago.namespace.mock
Class MedMockDataServer

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

All Implemented Interfaces:

FarragoMedDataServer, FarragoAllocation, ClosableAllocation

Direct Known Subclasses:

MedMockLocalDataServer

 class MedMockDataServer
extends MedAbstractDataServer

MedMockDataServer provides a mock implementation of the FarragoMedDataServer interface.

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/namespace/mock/MedMockDataServer.java#20 $

Author:

John V. Sichi

Field Summary

static boolean	DEFAULT_EXTRACT_COLUMNS
protected boolean	extractColumns
static String	PROP_EXECUTOR_IMPL
static String	PROP_EXTRACT_COLUMNS
static String	PROP_ROW_COUNT
static String	PROP_ROW_COUNT_SQL
static String	PROP_SCHEMA_NAME
static String	PROP_SIMULATE_BAD
static String	PROP_TABLE_NAME
static String	PROP_UDX_SPECIFIC_NAME
static String	PROPVAL_FENNEL
static String	PROPVAL_JAVA
private MedAbstractDataWrapper	wrapper

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

MedMockDataServer(MedAbstractDataWrapper wrapper, String serverMofId, Properties props)

Method Summary

private void	checkNameMatch(String expectedName, String actualName)
void	closeAllocation() Closes this object.
(package private) RelDataType	createMockColumnType(FarragoTypeFactory typeFactory)
(package private) RelDataType	createMockRowType(FarragoTypeFactory typeFactory)
(package private) String	getForeignSchemaName()
(package private) String	getForeignTableName()
FarragoMedNameDirectory	getNameDirectory() Gets a FarragoMedNameDirectory corresponding to this server.
Object	getRuntimeSupport(Object param) Gets an object needed for runtime support.
(package private) MedAbstractDataWrapper	getWrapper()
(package private) void	initialize()
FarragoMedColumnSet	newColumnSet(String[] localName, Properties tableProps, FarragoTypeFactory typeFactory, RelDataType rowType, Map<String,Properties> columnPropMap) Creates an instance of a FarragoMedColumnSet corresponding to row data identified by properties rather than container name.
void	registerRules(RelOptPlanner planner) Gives this wrapper a chance to register any special optimization rules.

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

getLoopbackDataSource, getProperties, getServerMofId, registerRelMetadataProviders, 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

Field Detail

PROP_SIMULATE_BAD

public static final String PROP_SIMULATE_BAD

See Also:

Constant Field Values

PROP_SCHEMA_NAME

public static final String PROP_SCHEMA_NAME

See Also:

Constant Field Values

PROP_TABLE_NAME

public static final String PROP_TABLE_NAME

See Also:

Constant Field Values

PROP_ROW_COUNT

public static final String PROP_ROW_COUNT

See Also:

Constant Field Values

PROP_ROW_COUNT_SQL

public static final String PROP_ROW_COUNT_SQL

See Also:

Constant Field Values

PROP_UDX_SPECIFIC_NAME

public static final String PROP_UDX_SPECIFIC_NAME

See Also:

Constant Field Values

PROP_EXECUTOR_IMPL

public static final String PROP_EXECUTOR_IMPL

See Also:

Constant Field Values

PROPVAL_JAVA

public static final String PROPVAL_JAVA

See Also:

Constant Field Values

PROPVAL_FENNEL

public static final String PROPVAL_FENNEL

See Also:

Constant Field Values

PROP_EXTRACT_COLUMNS

public static final String PROP_EXTRACT_COLUMNS

See Also:

Constant Field Values

DEFAULT_EXTRACT_COLUMNS

public static final boolean DEFAULT_EXTRACT_COLUMNS

See Also:

Constant Field Values

wrapper

private MedAbstractDataWrapper wrapper

extractColumns

protected boolean extractColumns

Constructor Detail

MedMockDataServer

MedMockDataServer(MedAbstractDataWrapper wrapper,
                  String serverMofId,
                  Properties props)

Method Detail

initialize

void initialize()
          throws SQLException

Throws:

SQLException

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)

newColumnSet

public FarragoMedColumnSet newColumnSet(String[] localName,
                                        Properties tableProps,
                                        FarragoTypeFactory typeFactory,
                                        RelDataType rowType,
                                        Map<String,Properties> columnPropMap)
                                 throws SQLException

Description copied from interface: FarragoMedDataServer

Creates an instance of a FarragoMedColumnSet corresponding to row data identified by properties rather than container name. This supports the SQL/MED CREATE FOREIGN TABLE statement. As much validation as possible should be performed, including accessing representative data.

Parameters:

localName - the qualified name to assign to the column set within Farrago; this should NOT be used for finding the actual data, since it can be set arbitrarily by the caller; instead, it should be used to implement the RelOptTable.getQualifiedName() method, and can be useful for correlation during debugging

tableProps - properties to use for data location and access

typeFactory - FarragoTypeFactory to use for defining types

rowType - type to impose on the rows of this column set (including column names and types), or null to infer row type; if this is non-null, it must be saved for use by the getRowType() returned from FarragoMedColumnSet

columnPropMap - map from column name to column-specific Properties; this is optional and may only be specified when rowType is also specified (the field names in rowType are used as the keys for columnPropMap)

Returns:

new FarragoMedColumnSet

Throws:

SQLException - if data access is unsuccessful

checkNameMatch

private void checkNameMatch(String expectedName,
                            String actualName)

getRuntimeSupport

public Object getRuntimeSupport(Object param)
                         throws SQLException

Description copied from interface: FarragoMedDataServer

Gets an object needed for runtime support. Typically, this will be called from code generated by this server. The meaning of this is entirely dependent on the server implementation. If the returned object implements FarragoAllocation, its closeAllocation() method will be called automatically as soon as it is no longer needed.

Specified by:

getRuntimeSupport in interface FarragoMedDataServer

Overrides:

getRuntimeSupport in class MedAbstractDataServer

Parameters:

param - parameter supplied at runtime

Returns:

support object

Throws:

SQLException

registerRules

public void registerRules(RelOptPlanner planner)

Description copied from interface: FarragoMedDataServer

Gives this wrapper a chance to register any special optimization rules. This method may be called more than once, each time with a different planner instance.

Specified by:

registerRules in interface FarragoMedDataServer

Overrides:

registerRules in class MedAbstractDataServer

Parameters:

planner - the planner in which the rules should be registered

closeAllocation

public void closeAllocation()

Description copied from interface: ClosableAllocation

Closes this object.

Specified by:

closeAllocation in interface ClosableAllocation

Overrides:

closeAllocation in class MedAbstractDataServer

getForeignSchemaName

String getForeignSchemaName()

getForeignTableName

String getForeignTableName()

getWrapper

MedAbstractDataWrapper getWrapper()

createMockRowType

RelDataType createMockRowType(FarragoTypeFactory typeFactory)

createMockColumnType

RelDataType createMockColumnType(FarragoTypeFactory typeFactory)