Java DataTable.create方法代码示例

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
private void draw() {
	String[] countries = new String[] { "Austria", "Bulgaria", "Denmark", "Greece" };
	int[] years = new int[] { 2003, 2004, 2005, 2006, 2007, 2008 };
	int[][] values = new int[][] { { 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0 } };

	// Prepare the data
	DataTable dataTable = DataTable.create();
	dataTable.addColumn(ColumnType.STRING, "Year");
	for (int i = 0; i < countries.length; i++) {
		dataTable.addColumn(ColumnType.NUMBER, countries[i]);
	}
	dataTable.addRows(years.length);
	for (int i = 0; i < years.length; i++) {
		dataTable.setValue(i, 0, String.valueOf(years[i]));
	}
	for (int col = 0; col < values.length; col++) {
		for (int row = 0; row < values[col].length; row++) {
			dataTable.setValue(row, col + 1, values[col][row]);
		}
	}

	chart.draw(dataTable, getOptions());
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
private void draw2() {

		String[] countries = new String[] { "Austria", "Bulgaria", "Denmark", "Greece" };
		int[] years = new int[] { 2003, 2004, 2005, 2006, 2007, 2008 };
		int[][] values = new int[][] { { 1336060, 1538156, 1576579, 1600652, 1968113, 1901067 }, { 400361, 366849, 440514, 434552, 393032, 517206 }, { 1001582, 1119450, 993360, 1004163, 979198, 916965 }, { 997974, 941795, 930593, 897127, 1080887, 1056036 } };

		// Prepare the data
		DataTable dataTable = DataTable.create();
		dataTable.addColumn(ColumnType.STRING, "Year");
		for (int i = 0; i < countries.length; i++) {
			dataTable.addColumn(ColumnType.NUMBER, countries[i]);
		}
		dataTable.addRows(years.length);
		for (int i = 0; i < years.length; i++) {
			dataTable.setValue(i, 0, String.valueOf(years[i]));
		}
		for (int col = 0; col < values.length; col++) {
			for (int row = 0; row < values[col].length; row++) {
				dataTable.setValue(row, col + 1, values[col][row]);
			}
		}

		chart.draw(dataTable, getOptions());
	}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
private void drawChart(int[][] values) {

		// Prepare the data
		DataTable dataTable = DataTable.create();
		dataTable.addColumn(ColumnType.STRING, "Year");
		for (int i = 0; i < countries.length; i++) {
			dataTable.addColumn(ColumnType.NUMBER, countries[i]);
		}
		dataTable.addRows(years.length);
		for (int i = 0; i < years.length; i++) {
			dataTable.setValue(i, 0, String.valueOf(years[i]));
		}
		for (int col = 0; col < values.length; col++) {
			for (int row = 0; row < values[col].length; row++) {
				dataTable.setValue(row, col + 1, values[col][row]);
			}
		}

		// Draw the chart
		chart.draw(dataTable, getOptions());
	}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
private void drawChart(int[][] values) {
	DataTable dataTable = DataTable.create();
	dataTable.addColumn(ColumnType.STRING, "Year");
	for (int i = 0; i < countries.length; i++) {
		dataTable.addColumn(ColumnType.NUMBER, countries[i]);
	}
	dataTable.addRows(months.length);
	for (int i = 0; i < months.length; i++) {
		dataTable.setValue(i, 0, months[i]);
	}
	for (int col = 0; col < values.length; col++) {
		for (int row = 0; row < values[col].length; row++) {
			dataTable.setValue(row, col + 1, values[col][row]);
		}
	}
	chart.draw(dataTable, getOptions());
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
private void draw() {

		// Prepare the data
		DataTable dataTable = DataTable.create();
		dataTable.addColumn(ColumnType.STRING, "LabelStyle");
		dataTable.addColumn(ColumnType.NUMBER, "Value");
		dataTable.addRows(3);
		dataTable.setValue(0, 0, "Memory");
		dataTable.setValue(0, 1, 80);

		// Set options
		GaugeOptions options = GaugeOptions.create();
		options.setGreenFrom(0);
		options.setGreenTo(40);
		options.setYellowFrom(40);
		options.setYellowTo(80);
		options.setRedFrom(80);
		options.setRedTo(100);
		
		// Draw the chart
		gauge.draw(dataTable, options);
	}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
/**
 * Updates the pue chart with new data
 * @param sourcesSummary
 */
private static void drawPieChart(JsArray<SourceSummary> sourcesSummary) {

    DataTable data = DataTable.create();
    data.addColumn(ColumnType.STRING, "Client");
    data.addColumn(ColumnType.NUMBER, "Count");

    data.addRows(sourcesSummary.length());
    int j = sourcesSummary.length();

    for (int i = 0; i < j; i++) {
        data.setValue(i, 0, sourcesSummary.get(i).getId());
        data.setValue(i, 1, sourcesSummary.get(i).getValue());
    }

    Legend legend = Legend.create();
    legend.setPosition(LegendPosition.NONE);

    PieChartOptions options = PieChartOptions.create();
    options.setWidth(500);
    options.setHeight(400);
    ChartArea area = ChartArea.create();
    area.setTop(50);
    area.setLeft(25);
    options.setChartArea(area);
    options.setLegend(legend);
    options.setColors("00796b", "00897b", "009688", "26a69a", "4db6ac", "80cbc4", "b2dfdb");

    pieChart.draw(data, options);
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
private void draw() {
	// Prepare the data
	DataTable dataTable = DataTable.create();
	dataTable.addColumn(ColumnType.STRING, "ID");
	dataTable.addColumn(ColumnType.NUMBER, "Life Expectancy");
	dataTable.addColumn(ColumnType.NUMBER, "Fertility Rate");
	dataTable.addColumn(ColumnType.STRING, "Region");
	dataTable.addColumn(ColumnType.NUMBER, "Population");
	dataTable.addRows(4);
	dataTable.setValue(0, 0, "CAN");
	dataTable.setValue(1, 0, "DEU");
	dataTable.setValue(2, 0, "DNK");
	dataTable.setValue(3, 0, "EGY");
	dataTable.setValue(0, 1, 80.66);
	dataTable.setValue(1, 1, 79.84);
	dataTable.setValue(2, 1, 78.6);
	dataTable.setValue(3, 1, 72.73);
	dataTable.setValue(0, 2, 1.67);
	dataTable.setValue(1, 2, 1.36);
	dataTable.setValue(2, 2, 1.84);
	dataTable.setValue(3, 2, 2.78);
	dataTable.setValue(0, 3, "North America");
	dataTable.setValue(1, 3, "Europe");
	dataTable.setValue(2, 3, "Europe");
	dataTable.setValue(3, 3, "Africa");
	dataTable.setValue(0, 4, 33739900);
	dataTable.setValue(1, 4, 81902307);
	dataTable.setValue(2, 4, 5523095);
	dataTable.setValue(3, 4, 79716203);

	// Set options
	

	// Draw the chart
	chart.draw(dataTable, getOptions());
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
private void draw() {
	// Prepare the data
	DataTable dataTable = DataTable.create();
	dataTable.addColumn(ColumnType.STRING, "Country");
	dataTable.addColumn(ColumnType.NUMBER, "Popularity");
	dataTable.addRows(6);
	dataTable.setValue(0, 0, "Germany");
	dataTable.setValue(0, 1, 200);
	dataTable.setValue(1, 0, "United States");
	dataTable.setValue(1, 1, 300);
	dataTable.setValue(2, 0, "Brazil");
	dataTable.setValue(2, 1, 400);
	dataTable.setValue(3, 0, "Canada");
	dataTable.setValue(3, 1, 500);
	dataTable.setValue(4, 0, "France");
	dataTable.setValue(4, 1, 600);
	dataTable.setValue(5, 0, "RU");
	dataTable.setValue(5, 1, 700);
	
	// Set Geo Chart Colors
	
	// Set options
	GeoChartOptions options = GeoChartOptions.create();
	GeoChartColorAxis geoChartColorAxis = GeoChartColorAxis.create();
	geoChartColorAxis.setColors(getNativeArray());
	options.setColorAxis(geoChartColorAxis);
	options.setDatalessRegionColor("e3f2fd");

	// Draw the chart
	geoChart.draw(dataTable, options);
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
/** 
 * Creates the table visualization, using the Google Charts framework.
 */
private void draw() {
	// Create DataTable
	DataTable dataTable = DataTable.create();
	dataTable.addColumn(ColumnType.STRING, "Title");
	dataTable.addColumn(ColumnType.NUMBER, "Year");
	dataTable.addColumn(ColumnType.NUMBER, "Length");
	dataTable.addColumn(ColumnType.STRING, "Country");
	dataTable.addColumn(ColumnType.STRING, "Genre");
	dataTable.addColumn(ColumnType.STRING, "Language");
	
	ArrayList<Movie> movieList = movieCollection.getMovies();
	dataTable.addRows(movieList.size());
	
	// Populate DataTable
	int i = 0;
	for (Movie m : movieList) {
		dataTable.setValue(i, 0, m.getTitle());
		dataTable.setValue(i, 1, m.getYear());
		dataTable.setValue(i, 2, m.getLength());
		dataTable.setValue(i, 3, m.getCountry().toString());
		dataTable.setValue(i, 4, m.getGenre().toString());
		dataTable.setValue(i, 5, m.getLanguage().toString());
		i++;
	}

	// Table options
	TableOptions options = TableOptions.create();
	// Enable row numbering
	options.setShowRowNumber(true);
	// Enable paging to improve the performance of displaying large tables
	options.setAlternatingRowStyle(true);
	options.setPage(TablePage.ENABLE);
	// Limit the number of displayed movies per page to 100
	options.setPageSize(100);

	// Draw visualization
	table.draw(dataTable, options);
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
/** 
 * Creates the histogram visualization, using the Google Charts framework.
 */
private void draw() {
	// Create DataTable
	DataTable dataTable = DataTable.create();
	dataTable.addColumn(ColumnType.STRING, "Title");
	dataTable.addColumn(ColumnType.NUMBER, "Length");
	
	ArrayList<Movie> movieList = movieCollection.getMovies();
	dataTable.addRows(movieList.size());
	
	// Populate DataTable
       int i = 0;
       for (Movie m : movieList) {
       	if (m.getLength() != -1) {
       		dataTable.setValue(i, 0, m.getTitle());
       		dataTable.setValue(i, 1, m.getLength());
       		i++;
       	}
       }

       // Histogram options
	HistogramOptions options = HistogramOptions.create();
	options.setTitle("Duration of films, in minutes");
	options.setLegend(Legend.create(LegendPosition.NONE));
	options.setColors("#505050");
	options.setHeight(425);
	ChartArea area = ChartArea.create();
       area.setTop(55);
       area.setLeft(50);
       area.setHeight(300);
       options.setChartArea(area);

	// Draw visualization
	histogram.draw(dataTable, options);
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
/** 
 * Creates the world map visualization, using the Google Charts framework.
 */
protected void draw() {
	// Create DataTable
	DataTable dataTable = DataTable.create();
	dataTable.addColumn(ColumnType.STRING, "Country");
	dataTable.addColumn(ColumnType.STRING, "Info");
	dataTable.addColumn(ColumnType.NUMBER, "Movie Count");
	dataTable.addRows(movie.getCountry().size());
	
	// Fill DataTable
	int i = 0;
	for (String country : movie.getCountry()) {
		dataTable.setValue(i, 0, country);
		// The getRelevantMovieInfo() method returns all the important information of an individual film, 
		// which is displayed when the user moves the cursor over the appropriate country
		dataTable.setValue(i, 1, movie.getRelevantMovieInfo());
		dataTable.setValue(i, 2, 1);
		i++;
	}

	// GeoChart options
	GeoChartOptions options = GeoChartOptions.create();
	GeoChartColorAxis geoChartColorAxis = GeoChartColorAxis.create();
	geoChartColorAxis.setColors("red");
	options.setDatalessRegionColor("#EEEEEE");
	options.setColorAxis(geoChartColorAxis);
	options.setHeight(570);

	// Draw visualization
	geoChart.draw(dataTable, options);
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
private void draw() {
    // Prepare the data
    DataTable dataTable = DataTable.create();
    dataTable.addColumn(ColumnType.STRING, "Task");
    dataTable.addColumn(ColumnType.NUMBER, "Hours per Day");
    dataTable.addRows(2);
    dataTable.setValue(0, 0, "Work");
    dataTable.setValue(0, 1, 11);
    dataTable.setValue(1, 0, "Sleep");
    dataTable.setValue(1, 1, 7);

    // Set options
    PieChartOptions options = PieChartOptions.create();
    options.setBackgroundColor("#f0f0f0");

    // options.setColors(colors);
    options.setFontName("Tahoma");
    options.setIs3D(true);
    options.setPieResidueSliceColor("#000000");
    options.setPieResidueSliceLabel("Others");
    options.setSliceVisibilityThreshold(0.1);
    options.setTitle("So, how was your day?");
    options.setHeight(100);
    options.setWidth(100);

    // Draw the chart
    chart.draw(dataTable, options);
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
/**
 * Creates a chart with the data from tweetSummary
 * @param tweetSummary : returned data from server
 */
private static void drawTweetsChart(JsArray<TweetSummary> tweetSummary) {

    DataTable data = DataTable.create();
    data.addColumn(ColumnType.STRING, "Date");
    data.addColumn(ColumnType.NUMBER, "Mentions");
    data.addColumn(ColumnType.NUMBER, "Tweets");

    data.addRows(tweetSummary.length());

    DateTimeFormat fmt = DateTimeFormat.getFormat("MMM d");
    DateTimeFormat fmt2 = DateTimeFormat.getFormat("/yyyy/M/d");

    int numberOfStatuses = 0;
    int numberOfMentions = 0;

    for (int i = 0; i < tweetSummary.length(); i++) {
        dateArrayList.add(fmt2.format(new Date((long) tweetSummary.get(i).getId())));
        data.setValue(i, 0, fmt.format(new Date((long) tweetSummary.get(i).getId())));
        data.setValue(i, 1, tweetSummary.get(i).getValue().getMentions());
        data.setValue(i, 2, tweetSummary.get(i).getValue().getStatuses());
        numberOfStatuses += tweetSummary.get(i).getValue().getStatuses();
        numberOfMentions += tweetSummary.get(i).getValue().getMentions();

    }

    tweetLabel.add(new Label("Mentions: " + numberOfMentions));
    tweetLabel.add(new Label("Tweets: " + numberOfStatuses));

    // Set options
    //Grid Lines
    Gridlines lines = Gridlines.create();
    lines.setColor("fff");

    // Text Positions X and Y Axis
    HAxis hAxis = HAxis.create();
    hAxis.setSlantedText(true);
    VAxis vAxis = VAxis.create();
    vAxis.setGridlines(lines);
    hAxis.setGridlines(lines);
    // Legend
    Legend legend = Legend.create();
    legend.setPosition(LegendPosition.TOP);
    legend.setAligment(LegendAlignment.END);

    // Set options
    AreaChartOptions options = AreaChartOptions.create();
    options.setAreaOpacity(1);
    options.setVAxis(vAxis);
    options.setHAxis(hAxis);
    options.setLegend(legend);
    options.setColors("B2DFDB", "4DB6AC");

    // Draw the chart
    tweetsChart.draw(data, options);
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
/**
 * Creates a chart with the data from followerSummary
 * @param followerSummary : returned data from server
 */
private static void drawFollowersChart(JsArray<FollowerSummary> followerSummary) {

    DataTable data = DataTable.create();
    data.addColumn(ColumnType.STRING, "Date");
    data.addColumn(ColumnType.NUMBER, "Followers");
    data.addRows(followerSummary.length());
    int j = followerSummary.length();

    DateTimeFormat fmt = DateTimeFormat.getFormat("MMM d");

    for (int i = 0; i < j; i++) {
        data.setValue(i, 0, fmt.format(new Date((long) followerSummary.get(i).getId())));
        data.setValue(i, 1, followerSummary.get(i).getValue());
    }

    int startFollowers = followerSummary.get(0).getValue();
    int endFollowers = followerSummary.get(j-1).getValue();

    float change = ((float)100 * (((float)endFollowers - (float)startFollowers) / (float)startFollowers));

    change = Math.round(change * 100)/(float)100;

    followersIcon.setIconType((change == 0 ? IconType.TRENDING_FLAT : (change > 0 ? IconType.TRENDING_UP : IconType.TRENDING_DOWN)));
    followersIcon.setIconColor((change == 0 ? "blue" : (change > 0 ? "teal" : "deep-orange accent-2")));
    followersLabel.setText((change == 0 ? "No change" : Math.abs(change) + "% " + (change > 0 ? "increase" : "decrease") + " in followers from "
            + fmt.format(new Date((long) followerSummary.get(0).getId()))
            + " to " + fmt.format(new Date((long) followerSummary.get(j-1).getId()))));

    // Set options
    //Grid Lines
    Gridlines lines = Gridlines.create();
    lines.setColor("fff");

    // Text Positions X and Y Axis
    HAxis hAxis = HAxis.create();
    hAxis.setSlantedText(true);
    VAxis vAxis = VAxis.create();
    vAxis.setGridlines(lines);
    hAxis.setGridlines(lines);
    // Legend
    Legend legend = Legend.create();
    legend.setPosition(LegendPosition.TOP);
    legend.setAligment(LegendAlignment.END);

    // Set options
    AreaChartOptions options = AreaChartOptions.create();
    options.setAreaOpacity(1);
    options.setVAxis(vAxis);
    options.setHAxis(hAxis);
    options.setLegend(legend);
    options.setColors("B2DFDB");

    // Draw the chart
    followersChart.draw(data, options);
}
 

import com.googlecode.gwt.charts.client.DataTable; //导入方法依赖的package包/类
@Override
public void dataClear() {
    dataTable = DataTable.create();
}