Class DefaultCategoryDataset

    • Constructor Summary

      Constructors 
      Constructor Description
      DefaultCategoryDataset()
      Creates a new (empty) dataset.
    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      void addValue​(double value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
      Adds a value to the table.
      void addValue​(java.lang.Number value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
      Adds a value to the table.
      void clear()
      Clears all data from the dataset and sends a DatasetChangeEvent to all registered listeners.
      java.lang.Object clone()
      Returns a clone of the dataset.
      boolean equals​(java.lang.Object obj)
      Tests this dataset for equality with an arbitrary object.
      int getColumnCount()
      Returns the number of columns in the table.
      int getColumnIndex​(java.lang.Comparable key)
      Returns the column index for a given key.
      java.lang.Comparable getColumnKey​(int column)
      Returns a column key.
      java.util.List getColumnKeys()
      Returns the column keys.
      int getRowCount()
      Returns the number of rows in the table.
      int getRowIndex​(java.lang.Comparable key)
      Returns the row index for a given key.
      java.lang.Comparable getRowKey​(int row)
      Returns the key for the specified row.
      java.util.List getRowKeys()
      Returns the row keys.
      java.lang.Number getValue​(int row, int column)
      Returns a value from the table.
      java.lang.Number getValue​(java.lang.Comparable rowKey, java.lang.Comparable columnKey)
      Returns the value for a pair of keys.
      int hashCode()
      Returns a hash code for the dataset.
      void incrementValue​(double value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
      Adds the specified value to an existing value in the dataset (if the existing value is null, it is treated as if it were 0.0).
      void removeColumn​(int columnIndex)
      Removes a column from the dataset and sends a DatasetChangeEvent to all registered listeners.
      void removeColumn​(java.lang.Comparable columnKey)
      Removes a column from the dataset and sends a DatasetChangeEvent to all registered listeners.
      void removeRow​(int rowIndex)
      Removes a row from the dataset and sends a DatasetChangeEvent to all registered listeners.
      void removeRow​(java.lang.Comparable rowKey)
      Removes a row from the dataset and sends a DatasetChangeEvent to all registered listeners.
      void removeValue​(java.lang.Comparable rowKey, java.lang.Comparable columnKey)
      Removes a value from the dataset and sends a DatasetChangeEvent to all registered listeners.
      void setValue​(double value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
      Adds or updates a value in the table and sends a DatasetChangeEvent to all registered listeners.
      void setValue​(java.lang.Number value, java.lang.Comparable rowKey, java.lang.Comparable columnKey)
      Adds or updates a value in the table and sends a DatasetChangeEvent to all registered listeners.
      • Methods inherited from class java.lang.Object

        finalize, getClass, notify, notifyAll, toString, wait, wait, wait
    • Method Detail

      • getRowIndex

        public int getRowIndex​(java.lang.Comparable key)
        Returns the row index for a given key.
        Specified by:
        getRowIndex in interface KeyedValues2D
        Parameters:
        key - the row key (null not permitted).
        Returns:
        The row index.
        See Also:
        getRowKey(int)
      • getValue

        public java.lang.Number getValue​(java.lang.Comparable rowKey,
                                         java.lang.Comparable columnKey)
        Returns the value for a pair of keys.
        Specified by:
        getValue in interface KeyedValues2D
        Parameters:
        rowKey - the row key (null not permitted).
        columnKey - the column key (null not permitted).
        Returns:
        The value (possibly null).
        Throws:
        UnknownKeyException - if either key is not defined in the dataset.
        See Also:
        addValue(Number, Comparable, Comparable)
      • addValue

        public void addValue​(double value,
                             java.lang.Comparable rowKey,
                             java.lang.Comparable columnKey)
        Adds a value to the table.
        Parameters:
        value - the value.
        rowKey - the row key.
        columnKey - the column key.
        See Also:
        getValue(Comparable, Comparable)
      • setValue

        public void setValue​(java.lang.Number value,
                             java.lang.Comparable rowKey,
                             java.lang.Comparable columnKey)
        Adds or updates a value in the table and sends a DatasetChangeEvent to all registered listeners.
        Parameters:
        value - the value (null permitted).
        rowKey - the row key (null not permitted).
        columnKey - the column key (null not permitted).
        See Also:
        getValue(Comparable, Comparable)
      • setValue

        public void setValue​(double value,
                             java.lang.Comparable rowKey,
                             java.lang.Comparable columnKey)
        Adds or updates a value in the table and sends a DatasetChangeEvent to all registered listeners.
        Parameters:
        value - the value.
        rowKey - the row key (null not permitted).
        columnKey - the column key (null not permitted).
        See Also:
        getValue(Comparable, Comparable)
      • incrementValue

        public void incrementValue​(double value,
                                   java.lang.Comparable rowKey,
                                   java.lang.Comparable columnKey)
        Adds the specified value to an existing value in the dataset (if the existing value is null, it is treated as if it were 0.0).
        Parameters:
        value - the value.
        rowKey - the row key (null not permitted).
        columnKey - the column key (null not permitted).
        Throws:
        UnknownKeyException - if either key is not defined in the dataset.
      • removeColumn

        public void removeColumn​(int columnIndex)
        Removes a column from the dataset and sends a DatasetChangeEvent to all registered listeners.
        Parameters:
        columnIndex - the column index.
        See Also:
        removeRow(int)
      • clear

        public void clear()
        Clears all data from the dataset and sends a DatasetChangeEvent to all registered listeners.
      • equals

        public boolean equals​(java.lang.Object obj)
        Tests this dataset for equality with an arbitrary object.
        Overrides:
        equals in class java.lang.Object
        Parameters:
        obj - the object (null permitted).
        Returns:
        A boolean.
      • hashCode

        public int hashCode()
        Returns a hash code for the dataset.
        Overrides:
        hashCode in class java.lang.Object
        Returns:
        A hash code.
      • clone

        public java.lang.Object clone()
                               throws java.lang.CloneNotSupportedException
        Returns a clone of the dataset.
        Specified by:
        clone in interface org.jfree.util.PublicCloneable
        Overrides:
        clone in class AbstractDataset
        Returns:
        A clone.
        Throws:
        java.lang.CloneNotSupportedException - if there is a problem cloning the dataset.