com.hardcode.gdbms.engine.data.command
Class UndoableSpatialDataSource

java.lang.Object
  com.hardcode.gdbms.engine.data.command.AbstractUndoableDataSource
      com.hardcode.gdbms.engine.data.command.UndoableSpatialDataSource

All Implemented Interfaces:

DataSource, ReadAccess, SpatialDataSource

public class UndoableSpatialDataSource
extends AbstractUndoableDataSource
implements SpatialDataSource

Field Summary

Fields inherited from class com.hardcode.gdbms.engine.data.command.AbstractUndoableDataSource

cs, dataSource

Fields inherited from interface com.hardcode.gdbms.engine.data.SpatialDataSource

ANY, LINE, MULTILINE, MULTIPOINT, MULTIPOLYGON, POINT, POLYGON

Fields inherited from interface com.hardcode.gdbms.engine.data.DataSource

COHERENT_ROW_ORDER, DIRECT_MODE, DISPATCH, IGNORE, STORE

Constructor Summary

UndoableSpatialDataSource(DataSource ds)

Method Summary

void	buildIndex() Builds a spatial index.
void	clearIndex() Clears the spatial index.
void	deleteRow(long rowId) Deletes the ith row of the DataSource if there is no spatial index.
java.awt.geom.Rectangle2D	getFullExtent() Gets the full extent of the data accessed
java.awt.geom.Rectangle2D	getGeometryBounds(long rowIndex) Gets the bounds of the geometry at the specified index.
int	getGeometryType() Gets the geometry type of the data source.
int	getSpatialFieldIndex() Returns the index of the field containing spatial data
void	insertEmptyRow() Inserts a row at the end of the dataware
void	insertEmptyRowAt(long index) Inserts an empty row at the end of the dataware.
void	insertFilledRow(Value[] values) Inserts a row at the end of the dataware with the specified values
void	insertFilledRowAt(long index, Value[] values) Inserts a row at the specified index with the specified values.
boolean	isIndexed()
java.util.List	queryIndex(java.awt.geom.Rectangle2D area) Queries the index and gets a List of Integer's with the indexes of those rows of the DataSource near the argument

Methods inherited from class com.hardcode.gdbms.engine.data.command.AbstractUndoableDataSource

addEditionListener, addField, addField, addMetadataEditionListener, addSelectionListener, beginTrans, canRedo, canUndo, check, commitTrans, getAlias, getAsString, getDataSourceFactory, getDataSourceMetadata, getDispatchingMode, getDriver, getDriverMetadata, getEmptyRow, getFieldIndexByName, getFieldNames, getFieldValue, getMemento, getName, getRow, getRowCount, getSelectedRows, getWhereFilter, isModified, redo, remove, removeEditionListener, removeField, removeMetadataEditionListener, removeSelectionListener, rollBackTrans, saveData, setDataSourceFactory, setDispatchingMode, setFieldName, setFieldValue, setSelectedRows, start, stop, undo

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.hardcode.gdbms.engine.data.DataSource

addEditionListener, addField, addField, addMetadataEditionListener, addSelectionListener, beginTrans, canRedo, canUndo, check, commitTrans, getAlias, getAsString, getDataSourceFactory, getDataSourceMetadata, getDispatchingMode, getDriver, getDriverMetadata, getFieldIndexByName, getFieldNames, getMemento, getName, getRow, getSelectedRows, getWhereFilter, isModified, redo, remove, removeEditionListener, removeField, removeMetadataEditionListener, removeSelectionListener, rollBackTrans, saveData, setDataSourceFactory, setDispatchingMode, setFieldName, setFieldValue, setSelectedRows, start, stop, undo

Methods inherited from interface com.hardcode.gdbms.engine.data.driver.ReadAccess

getFieldValue, getRowCount

Constructor Detail

UndoableSpatialDataSource

public UndoableSpatialDataSource(DataSource ds)

Method Detail

deleteRow

public void deleteRow(long rowId)
               throws DriverException

Description copied from interface: SpatialDataSource

Deletes the ith row of the DataSource if there is no spatial index. If there is, it sets all its values to null

Specified by:

deleteRow in interface SpatialDataSource

Parameters:

rowId - index of the row to be deleted

Throws:

DriverException - if the row could not be deleted

insertFilledRowAt

public void insertFilledRowAt(long index,
                              Value[] values)
                       throws DriverException,
                              java.lang.UnsupportedOperationException

Description copied from interface: SpatialDataSource

Inserts a row at the specified index with the specified values. It won't work if there is a spatial index

Specified by:

insertFilledRowAt in interface SpatialDataSource

Parameters:

index - index where the row will be inserted. No data is lost.

values - Values of the inserted row fields in the field order

Throws:

DriverException - if the row could not be inserted

java.lang.UnsupportedOperationException - If there is a spatial index

insertEmptyRowAt

public void insertEmptyRowAt(long index)
                      throws DriverException,
                             java.lang.UnsupportedOperationException

Description copied from interface: SpatialDataSource

Inserts an empty row at the end of the dataware. It won't work if there is a spatial index

Specified by:

insertEmptyRowAt in interface SpatialDataSource

Parameters:

index - index where the row will be inserted. No data is lost.

Throws:

DriverException - if the row could not be inserted

java.lang.UnsupportedOperationException - if there is a spatial index

insertFilledRow

public void insertFilledRow(Value[] values)
                     throws DriverException

Description copied from interface: DataSource

Inserts a row at the end of the dataware with the specified values

Specified by:

insertFilledRow in interface DataSource

Parameters:

values - Values of the inserted row fields in the field order

Throws:

DriverException - if the row could not be inserted

insertEmptyRow

public void insertEmptyRow()
                    throws DriverException

Description copied from interface: DataSource

Inserts a row at the end of the dataware

Specified by:

insertEmptyRow in interface DataSource

Throws:

DriverException - if the row could not be inserted

getFullExtent

public java.awt.geom.Rectangle2D getFullExtent()
                                        throws DriverException

Description copied from interface: SpatialDataSource

Gets the full extent of the data accessed

Specified by:

getFullExtent in interface SpatialDataSource

Returns:

Rectangle2D

Throws:

DriverException - if the operation fails

getGeometryType

public int getGeometryType()
                    throws DriverException

Description copied from interface: SpatialDataSource

Gets the geometry type of the data source.

Specified by:

getGeometryType in interface SpatialDataSource

Returns:

int

Throws:

DriverException

buildIndex

public void buildIndex()
                throws DriverException

Description copied from interface: SpatialDataSource

Builds a spatial index. A SpatialDataSource hasn't the same behaviour when there is an spatial index or not. So this operation causes the command history to be cleared

Specified by:

buildIndex in interface SpatialDataSource

Throws:

DriverException - If the build fails

clearIndex

public void clearIndex()
                throws DriverException

Description copied from interface: SpatialDataSource

Clears the spatial index. As the buildIndex method, this one clears the command history

Specified by:

clearIndex in interface SpatialDataSource

Throws:

DriverException

queryIndex

public java.util.List queryIndex(java.awt.geom.Rectangle2D area)

Description copied from interface: SpatialDataSource

Queries the index and gets a List of Integer's with the indexes of those rows of the DataSource near the argument

Specified by:

queryIndex in interface SpatialDataSource

Returns:

List of integer

isIndexed

public boolean isIndexed()

Specified by:

isIndexed in interface SpatialDataSource

Returns:

true if this datasource is spatially indexed and false otherwise

getSpatialFieldIndex

public int getSpatialFieldIndex()
                         throws DriverException

Description copied from interface: SpatialDataSource

Returns the index of the field containing spatial data

Specified by:

getSpatialFieldIndex in interface SpatialDataSource

Returns:

Throws:

DriverException

getGeometryBounds

public java.awt.geom.Rectangle2D getGeometryBounds(long rowIndex)
                                            throws DriverException

Description copied from interface: SpatialDataSource

Gets the bounds of the geometry at the specified index. If the geometry is NullValue, null is returned

Specified by:

getGeometryBounds in interface SpatialDataSource

Returns:

Throws:

DriverException