prefuse.data.io
Class FixedWidthTextTableWriter

java.lang.Object
  prefuse.data.io.AbstractTableWriter
      prefuse.data.io.FixedWidthTextTableWriter

All Implemented Interfaces:

TableWriter

public class FixedWidthTextTableWriter
extends AbstractTableWriter

TableWriter for fixed-width text files, that encode one row of table data per line use a fixed number of characters for each data column. Writing such tables requires use of a schema description that describes the fixed-widths for each individual column. The FixedWidthTextTableSchema class provides this functionality. A schema description must be written separately into a different file.

Author:

jeffrey heer

Constructor Summary

FixedWidthTextTableWriter(FixedWidthTextTableSchema schema)
Creates a new FixedWidthTextTableWriter using the given schema.

FixedWidthTextTableWriter(java.lang.String location)
Creates a new FixedWidthTextTableWriter using the schema at the given location.

Method Summary

FixedWidthTextTableSchema	getFixedWidthSchema() Get the schema description describing the data columns' fixed widths
void	setFixedWidthSchema(FixedWidthTextTableSchema schema) Set the schema description describing the data columns' fixed widths
void	writeTable(Table table, java.io.OutputStream os) Write a table from the given OutputStream.

Methods inherited from class prefuse.data.io.AbstractTableWriter

writeTable, writeTable

Methods inherited from class java.lang.Object

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

Constructor Detail

FixedWidthTextTableWriter

public FixedWidthTextTableWriter(FixedWidthTextTableSchema schema)

Creates a new FixedWidthTextTableWriter using the given schema.

Parameters:

schema - the schema description of the fixed-width text column lengths

FixedWidthTextTableWriter

public FixedWidthTextTableWriter(java.lang.String location)
                          throws DataIOException

Creates a new FixedWidthTextTableWriter using the schema at the given location.

Parameters:

location - a location string (filename, URL, or resource locator) for the schema description of the fixed-width text column lengths

Throws:

DataIOException - if an IO exception occurs while loading the schema

Method Detail

getFixedWidthSchema

public FixedWidthTextTableSchema getFixedWidthSchema()

Get the schema description describing the data columns' fixed widths

Returns:

the fixed-width table schema description

setFixedWidthSchema

public void setFixedWidthSchema(FixedWidthTextTableSchema schema)

Set the schema description describing the data columns' fixed widths

Parameters:

schema - the fixed-width table schema description

writeTable

public void writeTable(Table table,
                       java.io.OutputStream os)
                throws DataIOException

Description copied from interface: TableWriter

Write a table from the given OutputStream.

Parameters:

table - the Table to write

os - the OutputStream to write the table to

Throws:

DataIOException

See Also:

TableWriter.writeTable(prefuse.data.Table, java.io.OutputStream)