Examples of org.jfree.data.category.DefaultCategoryDataset.clear()

Class org.jfree.data.category.DefaultCategoryDataset

Examples of org.jfree.data.category.DefaultCategoryDataset.clear()

org.jfree.data.category.DefaultCategoryDataset.clear()
Clears all data from the dataset and sends a {@link DatasetChangeEvent}to all registered listeners.

        assertEquals(2, dataset.getColumnCount());
        underlying.addValue(1.0, "R1", "C3");
        assertEquals(2, dataset.getColumnCount());
        dataset.setFirstCategoryIndex(2);
        assertEquals(1, dataset.getColumnCount());
        underlying.clear();
        assertEquals(0, dataset.getColumnCount());
    }


    /**
     * Some checks for the getRowCount() method.

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                10, 5);
        assertEquals(0, dataset.getRowCount());
        underlying.addValue(1.0, "R1", "C1");
        assertEquals(1, dataset.getRowCount());


        underlying.clear();
        assertEquals(0, dataset.getRowCount());
    }


    /**
     * Some checks for the getColumnIndex() method.

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        assertEquals(2, dataset.getColumnCount());
        underlying.addValue(1.0, "R1", "C3");
        assertEquals(2, dataset.getColumnCount());
        dataset.setFirstCategoryIndex(2);
        assertEquals(1, dataset.getColumnCount());
        underlying.clear();
        assertEquals(0, dataset.getColumnCount());
    }


    /**
     * Some checks for the getRowCount() method.

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                10, 5);
        assertEquals(0, dataset.getRowCount());
        underlying.addValue(1.0, "R1", "C1");
        assertEquals(1, dataset.getRowCount());


        underlying.clear();
        assertEquals(0, dataset.getRowCount());
    }


    /**
     * Some checks for the getColumnIndex() method.

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  public DataForGraph getDataForGraphVariation() {
  DataForGraph dataForGraph=new DataForGraph();
  DefaultCategoryDataset  categDataset=new DefaultCategoryDataset();
  Double qte;
  categDataset.clear();    
  Map<Integer,Date> abcisses=this.getAbcisses();
  for(int i=1;(abcisses!=null)&&(i<abcisses.size());i++){
  qte=this.getQtes(abcisses.get(i-1),abcisses.get(i));          
   categDataset.addValue(qte,"series1",format.format(abcisses.get(i)));      
  }

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        assertEquals(2, dataset.getColumnCount());
        underlying.addValue(1.0, "R1", "C3");
        assertEquals(2, dataset.getColumnCount());
        dataset.setFirstCategoryIndex(2);
        assertEquals(1, dataset.getColumnCount());
        underlying.clear();
        assertEquals(0, dataset.getColumnCount());
    }


    /**
     * Some checks for the getRowCount() method.

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                10, 5);
        assertEquals(0, dataset.getRowCount());
        underlying.addValue(1.0, "R1", "C1");
        assertEquals(1, dataset.getRowCount());


        underlying.clear();
        assertEquals(0, dataset.getRowCount());
    }


    /**
     * Some checks for the getColumnIndex() method.

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