uba.db.impl.filesystem
Class FileSystemTable

java.lang.Object
  uba.db.table.TableBehavior
      uba.db.impl.filesystem.FileSystemTable

All Implemented Interfaces:

Table

public class FileSystemTable
extends TableBehavior

Version:

$Revision: 1.4 $

Field Summary

static java.lang.String	DATA_FILE_SUFFIX
static java.lang.String	SCHEMA_FILE_SUFFIX

Constructor Summary

protected

FileSystemTable(TableSchema tableSchema, java.io.File dataFile)

Method Summary

static java.io.File	createDataFile(java.io.File directory, TableSchema tableSchema)
static FileSystemTable	createFrom(java.io.File schemaFile)
static FileSystemTable	createNew(java.io.File directory, TableSchema tableSchema)
java.io.File	dataFile()
static java.io.File	dataFileFor(java.io.File directory, TableSchema tableSchema)
protected void	insertRow(Row row) Las sub-clases deben implementar este método para insertar una fila en la tabla.
TableReader	reader() Retorna una instancia concreta de TableReaderpara acceder a la información de esta tabla.
java.io.File	schemaFile()

Methods inherited from class uba.db.table.TableBehavior

columnNamed, columns, indexOfColumnNamed, insert, name, numberOfColumns

Methods inherited from class java.lang.Object

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

Field Detail

DATA_FILE_SUFFIX

public static final java.lang.String DATA_FILE_SUFFIX

See Also:

Constant Field Values

SCHEMA_FILE_SUFFIX

public static final java.lang.String SCHEMA_FILE_SUFFIX

See Also:

Constant Field Values

Constructor Detail

FileSystemTable

protected FileSystemTable(TableSchema tableSchema,
                          java.io.File dataFile)
                   throws java.io.FileNotFoundException

Throws:

java.io.FileNotFoundException

Method Detail

reader

public TableReader reader()
                   throws TableReaderCreationException

Description copied from interface: Table

Retorna una instancia concreta de TableReaderpara acceder a la información de esta tabla.

Returns:

una instancia de TableReader.

Throws:

TableReaderCreationException

See Also:

Table.reader()

insertRow

protected void insertRow(Row row)
                  throws InsertException

Description copied from class: TableBehavior

Las sub-clases deben implementar este método para insertar una fila en la tabla.

Specified by:

insertRow in class TableBehavior

Parameters:

row - fila a insertar.

Throws:

InsertException

See Also:

TableBehavior.insertRow(uba.db.table.Row)

dataFile

public java.io.File dataFile()

createNew

public static FileSystemTable createNew(java.io.File directory,
                                        TableSchema tableSchema)
                                 throws java.io.IOException

Throws:

java.io.IOException

createFrom

public static FileSystemTable createFrom(java.io.File schemaFile)
                                  throws java.io.IOException,
                                         java.lang.ClassNotFoundException

Throws:

java.io.IOException

java.lang.ClassNotFoundException

createDataFile

public static java.io.File createDataFile(java.io.File directory,
                                          TableSchema tableSchema)
                                   throws java.io.IOException

Throws:

java.io.IOException

dataFileFor

public static java.io.File dataFileFor(java.io.File directory,
                                       TableSchema tableSchema)

schemaFile

public java.io.File schemaFile()