net.sf.clichart.data
Class AbstractDataParser

java.lang.Object
  net.sf.clichart.data.AbstractDataParser

All Implemented Interfaces:

DataParser

Direct Known Subclasses:

TimeDataParser, ValueDataParser

public abstract class AbstractDataParser
extends java.lang.Object
implements DataParser

Abstract base class for data parsers. Subclasses are responsible for parsing the X value.

Note: In order to add a second axis, call addSecondAxis before parsing starts.

Author:

johnd

Constructor Summary

protected

AbstractDataParser(LineParser lineParser, int xColumnIndex, int[] yColumnIndexes, boolean hasHeader, boolean ignoreMissingValues, boolean ignoreEmptyValues, DataSink sink)

Method Summary

void	addSecondAxis(int[] yColumnIndexes, DataSink sink) Configure parsing for values to be displayed on a second axis on the chart.
void	parse(java.io.Reader source) Parse the data from the reader, advising the sink of all data parsed
protected abstract java.lang.Object	parseXValueImpl(java.lang.String xValue, int lineNumber) Parse the provided X value, and return as an appropriate object, e.g.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDataParser

protected AbstractDataParser(LineParser lineParser,
                             int xColumnIndex,
                             int[] yColumnIndexes,
                             boolean hasHeader,
                             boolean ignoreMissingValues,
                             boolean ignoreEmptyValues,
                             DataSink sink)

Method Detail

addSecondAxis

public void addSecondAxis(int[] yColumnIndexes,
                          DataSink sink)

Configure parsing for values to be displayed on a second axis on the chart.

Parameters:

yColumnIndexes - Column indexes to display on the second chart

sink - Data sink for the second axis.

parse

public void parse(java.io.Reader source)
           throws java.io.IOException,
                  InvalidDataException

Description copied from interface: DataParser

Parse the data from the reader, advising the sink of all data parsed

Specified by:

parse in interface DataParser

Throws:

java.io.IOException

InvalidDataException

parseXValueImpl

protected abstract java.lang.Object parseXValueImpl(java.lang.String xValue,
                                                    int lineNumber)
                                             throws InvalidDataException

Parse the provided X value, and return as an appropriate object, e.g. Date, Integer, Double

Throws:

InvalidDataException