Class JSONUtils

Method Details

• readKeyedValues

  public static KeyedValues<String,Number> readKeyedValues(String json)

  Parses the supplied JSON string into a KeyedValues instance.
  
  Implementation note: this method returns an instance of StandardPieDataset3D).

  Parameters:

  json - the JSON string (null not permitted).

  Returns:

  A KeyedValues instance.

• readKeyedValues

  public static KeyedValues<String,Number> readKeyedValues(Reader reader) throws IOException

  Parses characters from the supplied reader and returns the corresponding KeyedValues instance.
  
  Implementation note: this method returns an instance of StandardPieDataset3D).

  Parameters:

  reader - the reader (null not permitted).

  Returns:

  A KeyedValues instance.

  Throws:

  IOException - if there is an I/O problem.

• writeKeyedValues

  public static String writeKeyedValues(KeyedValues data)

  Returns a string containing the data in JSON format. The format is an array of arrays, where each sub-array represents one data value. The sub-array should contain two items, first the item key as a string and second the item value as a number. For example: [["Key A", 1.0], ["Key B", 2.0]]
  
  Note that this method can be used with instances of PieDataset3D.

  Parameters:

  data - the data (null not permitted).

  Returns:

  A string in JSON format.

• writeKeyedValues

  public static void writeKeyedValues(KeyedValues data, Writer writer) throws IOException

  Writes the data in JSON format to the supplied writer.
  
  Note that this method can be used with instances of PieDataset3D.

  Parameters:

  data - the data (null not permitted).

  writer - the writer (null not permitted).

  Throws:

  IOException - if there is an I/O problem.

• readKeyedValues2D

  public static KeyedValues2D<String,String,Number> readKeyedValues2D(String json)

  Reads a data table from a JSON format string.

  Parameters:

  json - the string (null not permitted).

  Returns:

  A data table.

• readKeyedValues2D

  public static KeyedValues2D<String,String,Number> readKeyedValues2D(Reader reader) throws IOException

  Reads a data table from a JSON format string coming from the specified reader.

  Parameters:

  reader - the reader (null not permitted).

  Returns:

  A data table.

  Throws:

  IOException - if there is an I/O problem.

• writeKeyedValues2D

  public static String writeKeyedValues2D(KeyedValues2D data)

  Writes a data table to a string in JSON format.

  Parameters:

  data - the data (null not permitted).

  Returns:

  The string.

• writeKeyedValues2D

  public static void writeKeyedValues2D(KeyedValues2D data, Writer writer) throws IOException

  Writes the data in JSON format to the supplied writer.

  Parameters:

  data - the data (null not permitted).

  writer - the writer (null not permitted).

  Throws:

  IOException - if there is an I/O problem.

• readKeyedValues3D

  public static KeyedValues3D<String,String,String,Number> readKeyedValues3D(String json)

  Parses the supplied string and (if possible) creates a KeyedValues3D instance.

  Parameters:

  json - the JSON string (null not permitted).

  Returns:

  A KeyedValues3D instance.

• readKeyedValues3D

  public static KeyedValues3D<String,String,String,Number> readKeyedValues3D(Reader reader) throws IOException

  Parses character data from the reader and (if possible) creates a KeyedValues3D instance. This method will read back the data written by writeKeyedValues3D(org.jfree.chart3d.data.KeyedValues3D, java.io.Writer).

  Parameters:

  reader - the reader (null not permitted).

  Returns:

  A KeyedValues3D instance.

  Throws:

  IOException - if there is an I/O problem.

• writeKeyedValues3D

  public static String writeKeyedValues3D(KeyedValues3D dataset)

  Returns a string containing the data in JSON format.

  Parameters:

  dataset - the data (null not permitted).

  Returns:

  A string in JSON format.

• writeKeyedValues3D

  public static void writeKeyedValues3D(KeyedValues3D dataset, Writer writer) throws IOException

  Writes the dataset in JSON format to the supplied writer.

  Parameters:

  dataset - the dataset (null not permitted).

  writer - the writer (null not permitted).

  Throws:

  IOException - if there is an I/O problem.

• readXYZDataset

  public static XYZDataset<String> readXYZDataset(String json)

  Parses the string and (if possible) creates an {XYZDataset} instance that represents the data. This method will read back the data that is written by writeXYZDataset(org.jfree.chart3d.data.xyz.XYZDataset).

  Parameters:

  json - a JSON formatted string (null not permitted).

  Returns:

  A dataset.

  See Also:

  • writeXYZDataset(org.jfree.chart3d.data.xyz.XYZDataset)

• readXYZDataset

  public static XYZDataset<String> readXYZDataset(Reader reader) throws IOException

  Parses character data from the reader and (if possible) creates an {XYZDataset} instance that represents the data.

  Parameters:

  reader - a reader (null not permitted).

  Returns:

  A dataset.

  Throws:

  IOException - if there is an I/O problem.

• writeXYZDataset

  public static String writeXYZDataset(XYZDataset dataset)

  Returns a string containing the dataset in JSON format.

  Parameters:

  dataset - the dataset (null not permitted).

  Returns:

  A string in JSON format.

• writeXYZDataset

  public static void writeXYZDataset(XYZDataset dataset, Writer writer) throws IOException

  Writes the dataset in JSON format to the supplied writer.

  Parameters:

  dataset - the data (null not permitted).

  writer - the writer (null not permitted).

  Throws:

  IOException - if there is an I/O problem.