com.hardcode.gdbms.driver.csv
Class CSVDriver

java.lang.Object
  com.hardcode.gdbms.driver.csv.CSVDriver

All Implemented Interfaces:

com.hardcode.driverManager.Driver, AlphanumericFileDriver, FileDriver, GDBMSDriver, ReadAccess, TypeConverter, ValueWriter

public class CSVDriver
extends java.lang.Object
implements com.hardcode.driverManager.Driver, AlphanumericFileDriver, ValueWriter

Test driver that reads only the persona.csv file. A generic csv driver can be found in the com.hardcode.gdbms.driver.csvstring package

Author:

Fernando González Cortés

Field Summary

Fields inherited from interface com.hardcode.gdbms.engine.values.ValueWriter

internalValueWriter

Constructor Summary

CSVDriver()

Method Summary

java.lang.String	check(Field field, Value value) Checks if a given value is suitable for the specified field
void	close() Cierra el Fichero sobre el que se estaba accediendo
java.lang.String	completeFileName(java.lang.String fileName) Returns a file name that will be accepted by the driver.
void	copy(java.io.File in, java.io.File out) Copies the datasource from file in to file out
void	createSource(java.lang.String path, DriverMetadata dsm) Creates a new file with the given field names and types
boolean	fileAccepted(java.io.File f) devuelve true si el driver puede leer el fichero que se pasa como parámetro, false en caso contrario
java.lang.String[]	getAvailableTypes() Gets a string identificator for each type a field can have
DriverMetadata	getDriverMetadata() Gets the driver specific metadata
int	getFieldCount()
java.lang.String	getFieldName(int fieldId)
int	getFieldType(int i)
Value	getFieldValue(long rowIndex, int fieldId) Obtiene el valor que se encuentra en la fila y columna indicada
Metadata	getMetadata()
java.lang.String	getName()
java.lang.String	getNullStatementString() DOCUMENT ME!
java.lang.String[]	getParameters(java.lang.String driverType) Gets the parameters used in creating the type
java.lang.String[]	getPrimaryKeys()
long	getRowCount() Obtiene el número de registros del DataSource
java.lang.String	getStatementString(boolean b) DOCUMENT ME!
java.lang.String	getStatementString(byte[] binary) DOCUMENT ME!
java.lang.String	getStatementString(java.sql.Date d) DOCUMENT ME!
java.lang.String	getStatementString(double d, int sqlType) DOCUMENT ME!
java.lang.String	getStatementString(Geometry g) Gets the string representation of the geometry as it would appear in a SQL statement
java.lang.String	getStatementString(int i, int sqlType) DOCUMENT ME!
java.lang.String	getStatementString(long i) DOCUMENT ME!
java.lang.String	getStatementString(java.lang.String str, int sqlType) DOCUMENT ME!
java.lang.String	getStatementString(java.sql.Time t) DOCUMENT ME!
java.lang.String	getStatementString(java.sql.Timestamp ts) DOCUMENT ME!
int	getType(java.lang.String driverType) Gets the suitable GDBMS type for the given driver specific type
boolean	isReadOnly(int i) Returns true if the specified field is read only
boolean	isValidParameter(java.lang.String driverType, java.lang.String paramName, java.lang.String paramValue) Returns if the given value (paramValue) for the parameter called paramName of the given driver specific type is valid or not
void	open(java.io.File file) Método invocado al comienzo para abrir el fichero.
void	setDataSourceFactory(DataSourceFactory dsf)
void	writeFile(java.io.File file, DataSource dataWare) Writes the content of the DataWare to the specified file.

Methods inherited from class java.lang.Object

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

Constructor Detail

CSVDriver

public CSVDriver()

Method Detail

getName

public java.lang.String getName()

Specified by:

getName in interface com.hardcode.driverManager.Driver

See Also:

com.hardcode.gdbms.driver.Driver#getName()

getFieldName

public java.lang.String getFieldName(int fieldId)
                              throws DriverException

Throws:

DriverException

See Also:

com.hardcode.gdbms.data.DataSource#getFieldName(int)

getFieldValue

public Value getFieldValue(long rowIndex,
                           int fieldId)
                    throws DriverException

Description copied from interface: ReadAccess

Obtiene el valor que se encuentra en la fila y columna indicada

Specified by:

getFieldValue in interface ReadAccess

Parameters:

rowIndex - fila

fieldId - columna

Returns:

subclase de Value con el valor del origen de datos. Never null (use ValueFactory.createNullValue() instead)

Throws:

DriverException - Si se produce un error accediendo al DataSource

See Also:

com.hardcode.gdbms.data.DataSource#getIntFieldValue(int, int)

getFieldCount

public int getFieldCount()
                  throws DriverException

Throws:

DriverException

See Also:

com.hardcode.gdbms.data.DataSource#getFieldCount()

open

public void open(java.io.File file)
          throws DriverException

Description copied from interface: FileDriver

Método invocado al comienzo para abrir el fichero. A partir de la invocación de este método todos las operaciones se harán sobre el File que se pasa como parámetro

Specified by:

open in interface FileDriver

Parameters:

file - Fichero que se debe de abrir

Throws:

DriverException - Si se produce algun error

See Also:

com.hardcode.gdbms.data.DataSource#open(java.io.File)

close

public void close()
           throws DriverException

Description copied from interface: FileDriver

Cierra el Fichero sobre el que se estaba accediendo

Specified by:

close in interface FileDriver

Throws:

DriverException - Si se produce algún error

See Also:

com.hardcode.gdbms.data.DataSource#close()

getRowCount

public long getRowCount()

Description copied from interface: ReadAccess

Obtiene el número de registros del DataSource

Specified by:

getRowCount in interface ReadAccess

Returns:

See Also:

com.hardcode.gdbms.data.DataSource#getRowCount()

fileAccepted

public boolean fileAccepted(java.io.File f)

Description copied from interface: FileDriver

devuelve true si el driver puede leer el fichero que se pasa como parámetro, false en caso contrario

Specified by:

fileAccepted in interface FileDriver

Parameters:

f - Fichero que se quiere comprobar

Returns:

DOCUMENT ME!

See Also:

FileDriver.fileAccepted(java.io.File)

getFieldType

public int getFieldType(int i)
                 throws DriverException

Throws:

DriverException

See Also:

com.hardcode.gdbms.engine.data.driver.ObjectDriver#getFieldType(int)

writeFile

public void writeFile(java.io.File file,
                      DataSource dataWare)
               throws DriverException

Description copied from interface: AlphanumericFileDriver

Writes the content of the DataWare to the specified file.

Specified by:

writeFile in interface AlphanumericFileDriver

Throws:

DriverException

See Also:

com.hardcode.gdbms.engine.data.driver.AlphanumericFileDriver#writeFile(com.hardcode.gdbms.engine.data.edition.DataWare, java.io.File)

createSource

public void createSource(java.lang.String path,
                         DriverMetadata dsm)
                  throws DriverException

Description copied from interface: AlphanumericFileDriver

Creates a new file with the given field names and types

Specified by:

createSource in interface AlphanumericFileDriver

Parameters:

path - Path to the new file

dsm - Metadata of the source

Throws:

DriverException - If the creation fails

getNullStatementString

public java.lang.String getNullStatementString()

DOCUMENT ME!

Specified by:

getNullStatementString in interface ValueWriter

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(boolean b)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

b - DOCUMENT ME!

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(byte[] binary)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

binary - DOCUMENT ME!

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(java.sql.Date d)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

d - DOCUMENT ME!

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(double d,
                                           int sqlType)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

d - DOCUMENT ME!

sqlType - DOCUMENT ME!

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(int i,
                                           int sqlType)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

i - DOCUMENT ME!

sqlType - DOCUMENT ME!

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(long i)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

i - DOCUMENT ME!

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(java.lang.String str,
                                           int sqlType)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

str - DOCUMENT ME!

sqlType - DOCUMENT ME!

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(java.sql.Time t)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

t - DOCUMENT ME!

Returns:

DOCUMENT ME!

getStatementString

public java.lang.String getStatementString(java.sql.Timestamp ts)

DOCUMENT ME!

Specified by:

getStatementString in interface ValueWriter

Parameters:

ts - DOCUMENT ME!

Returns:

DOCUMENT ME!

setDataSourceFactory

public void setDataSourceFactory(DataSourceFactory dsf)

Specified by:

setDataSourceFactory in interface GDBMSDriver

getMetadata

public Metadata getMetadata()
                     throws DriverException

Throws:

DriverException

getStatementString

public java.lang.String getStatementString(Geometry g)

Description copied from interface: ValueWriter

Gets the string representation of the geometry as it would appear in a SQL statement

Specified by:

getStatementString in interface ValueWriter

Parameters:

g - Geometry

Returns:

String

completeFileName

public java.lang.String completeFileName(java.lang.String fileName)

Description copied from interface: FileDriver

Returns a file name that will be accepted by the driver. Example: a -> a.txt

Specified by:

completeFileName in interface FileDriver

Parameters:

fileName - base name

Returns:

copy

public void copy(java.io.File in,
                 java.io.File out)
          throws java.io.IOException

Description copied from interface: FileDriver

Copies the datasource from file in to file out

Specified by:

copy in interface FileDriver

Throws:

java.io.IOException

See Also:

FileDriver.copy(java.io.File, java.io.File)

getDriverMetadata

public DriverMetadata getDriverMetadata()
                                 throws DriverException

Description copied from interface: GDBMSDriver

Gets the driver specific metadata

Specified by:

getDriverMetadata in interface GDBMSDriver

Returns:

Throws:

DriverException

See Also:

GDBMSDriver.getDriverMetadata()

getType

public int getType(java.lang.String driverType)

Description copied from interface: TypeConverter

Gets the suitable GDBMS type for the given driver specific type

Specified by:

getType in interface TypeConverter

Returns:

See Also:

TypeConverter.getType(java.lang.String)

getAvailableTypes

public java.lang.String[] getAvailableTypes()
                                     throws DriverException

Description copied from interface: GDBMSDriver

Gets a string identificator for each type a field can have

Specified by:

getAvailableTypes in interface GDBMSDriver

Returns:

Throws:

DriverException

getParameters

public java.lang.String[] getParameters(java.lang.String driverType)
                                 throws DriverException

Description copied from interface: GDBMSDriver

Gets the parameters used in creating the type

Specified by:

getParameters in interface GDBMSDriver

Returns:

Throws:

DriverException

check

public java.lang.String check(Field field,
                              Value value)
                       throws DriverException

Description copied from interface: GDBMSDriver

Checks if a given value is suitable for the specified field

Specified by:

check in interface GDBMSDriver

Returns:

Throws:

DriverException

isReadOnly

public boolean isReadOnly(int i)

Description copied from interface: GDBMSDriver

Returns true if the specified field is read only

Specified by:

isReadOnly in interface GDBMSDriver

Returns:

getPrimaryKeys

public java.lang.String[] getPrimaryKeys()

isValidParameter

public boolean isValidParameter(java.lang.String driverType,
                                java.lang.String paramName,
                                java.lang.String paramValue)

Description copied from interface: GDBMSDriver

Returns if the given value (paramValue) for the parameter called paramName of the given driver specific type is valid or not

Specified by:

isValidParameter in interface GDBMSDriver

paramValue - null if the parameter is not specified

Returns: