Added example for editing data
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lukaseder
parent
d8714b1359
commit
8f86bc19c5
@ -45,52 +45,189 @@ import static java.util.stream.Collectors.toList;
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import static javafx.collections.FXCollections.observableArrayList;
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import static org.jooq.example.db.h2.Tables.COUNTRIES;
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import static org.jooq.impl.DSL.avg;
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import static org.jooq.impl.DSL.fieldByName;
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import static org.jooq.impl.DSL.field;
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import static org.jooq.impl.DSL.name;
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import static org.jooq.impl.DSL.partitionBy;
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import static org.jooq.impl.DSL.select;
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import static org.jooq.impl.DSL.table;
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import java.math.BigDecimal;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.util.Properties;
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import java.util.stream.Stream;
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import org.jooq.DSLContext;
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import org.jooq.Field;
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import org.jooq.Record;
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import org.jooq.Table;
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import org.jooq.TableField;
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import org.jooq.conf.Settings;
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import org.jooq.example.db.h2.tables.records.CountriesRecord;
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import org.jooq.exception.DataAccessException;
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import org.jooq.impl.DSL;
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import org.jooq.tools.jdbc.JDBCUtils;
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import javafx.application.Application;
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import javafx.beans.property.SimpleObjectProperty;
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import javafx.collections.ListChangeListener.Change;
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import javafx.geometry.Insets;
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import javafx.scene.Scene;
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import javafx.scene.chart.BarChart;
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import javafx.scene.chart.CategoryAxis;
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import javafx.scene.chart.NumberAxis;
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import javafx.scene.chart.XYChart;
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import javafx.scene.control.Button;
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import javafx.scene.control.Label;
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import javafx.scene.control.TableColumn;
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import javafx.scene.control.TableView;
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import javafx.scene.control.TextField;
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import javafx.scene.layout.ColumnConstraints;
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import javafx.scene.layout.GridPane;
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import javafx.scene.layout.Priority;
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import javafx.scene.layout.RowConstraints;
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import javafx.stage.Stage;
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@SuppressWarnings("restriction")
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public class BarChartSample extends Application {
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Connection connection;
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Connection connection;
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CountriesRecord selected;
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@Override
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public void start(Stage stage) {
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stage.setTitle("Country statistics with jOOQ and JavaFX");
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Label error = new Label("");
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error.setPadding(new Insets(10.0));
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// Create two charts, plotting a specific metric, each.
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BarChart<String, Number> chart1 = chart(COUNTRIES.GDP_PER_CAPITA, "GDP per Capita", "USD");
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BarChart<String, Number> chart2 = chart(COUNTRIES.GOVT_DEBT, "Government Debt", "% of GDP");
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GridPane pane = new GridPane();
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pane.addColumn(0, chart1, chart2);
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TableView<CountriesRecord> table = table(COUNTRIES);
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Scene scene = new Scene(pane, 500, 800);
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Runnable refresh = () -> {
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table.getItems().clear();
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table.getItems().addAll(ctx().fetch(COUNTRIES).sortAsc(COUNTRIES.YEAR).sortAsc(COUNTRIES.CODE));
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chartRefresh(chart1);
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chartRefresh(chart2);
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error.setText("");
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selected = ctx().newRecord(COUNTRIES);
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};
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refresh.run();
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table.getSelectionModel().getSelectedItems().addListener((Change<? extends CountriesRecord> c) -> {
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if (c.getList().isEmpty())
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selected = ctx().newRecord(COUNTRIES);
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else
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for (CountriesRecord record : c.getList())
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selected = record;
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});
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GridPane editPane = new GridPane();
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int i = 0;
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for (Field<?> field : COUNTRIES.fields()) {
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Label label = new Label(field.getName());
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TextField textField = new TextField();
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textField.textProperty().addListener((o, oldV, newV) -> {
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selected.setValue((Field) field, newV);
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});
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table.getSelectionModel().getSelectedItems().addListener((Change<? extends CountriesRecord> c) -> {
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if (c.getList().isEmpty())
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textField.setText("");
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else
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for (CountriesRecord record : c.getList())
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textField.setText(record.getValue(field, String.class));
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});
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editPane.addRow(i++, label, textField);
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}
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Button saveButton = new Button("Save");
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saveButton.setOnAction(event -> {
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try {
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if (selected.store() > 0)
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refresh.run();
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}
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catch (DataAccessException e) {
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e.printStackTrace();
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error.setText(e.sqlStateClass() + ": " + e.getCause().getMessage());
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}
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});
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Button deleteButton = new Button("Delete");
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deleteButton.setOnAction(event -> {
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try {
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if (selected.delete() > 0)
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refresh.run();
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}
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catch (DataAccessException e) {
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e.printStackTrace();
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error.setText(e.sqlStateClass() + ": " + e.getCause().getMessage());
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}
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});
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GridPane buttonPane = new GridPane();
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buttonPane.addRow(0, saveButton, deleteButton);
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editPane.addRow(i++, new Label(""), buttonPane);
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GridPane chartPane = new GridPane();
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chartPane.addColumn(0, chart1, chart2);
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grow(chartPane);
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GridPane display = new GridPane();
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display.addRow(0, chartPane, table, editPane);
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grow(display);
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GridPane displayAndStatus = new GridPane();
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displayAndStatus.addColumn(0, display, error);
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displayAndStatus.setGridLinesVisible(true);
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grow(displayAndStatus);
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Scene scene = new Scene(displayAndStatus, 1000, 800);
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stage.setScene(scene);
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stage.show();
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}
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private BarChart<String, Number> chart(TableField<CountriesRecord, BigDecimal> field, String title, String yAxisLabel) {
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private DSLContext ctx() {
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return DSL.using(connection, new Settings().withUpdatablePrimaryKeys(true));
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}
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private void grow(GridPane pane) {
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ColumnConstraints col = new ColumnConstraints();
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col.setFillWidth(true);
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col.setHgrow(Priority.ALWAYS);
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pane.getColumnConstraints().add(col);
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RowConstraints row = new RowConstraints();
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row.setFillHeight(true);
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row.setVgrow(Priority.ALWAYS);
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pane.getRowConstraints().add(row);
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}
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private <R extends Record> TableView<R> table(Table<R> table) {
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TableView<R> view = new TableView<>();
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view.setEditable(true);
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view.getColumns().addAll(
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Stream.of(table.fields())
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.map(f -> {
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TableColumn<R, Object> column = new TableColumn<>(f.getName());
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column.setCellValueFactory(d -> new SimpleObjectProperty<>(d.getValue().getValue(f)));
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return column;
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})
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.collect(toList())
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);
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return view;
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}
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private BarChart<String, Number> chart(TableField<CountriesRecord, ? extends Number> field, String title, String yAxisLabel) {
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CategoryAxis xAxis = new CategoryAxis();
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NumberAxis yAxis = new NumberAxis();
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xAxis.setLabel("Country");
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@ -98,28 +235,37 @@ public class BarChartSample extends Application {
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BarChart<String, Number> bc = new BarChart<>(xAxis, yAxis);
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bc.setTitle(title);
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bc.setUserData(field);
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return bc;
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}
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private BarChart<String, Number> chartRefresh(BarChart<String, Number> bc) {
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TableField<CountriesRecord, Number> field = (TableField<CountriesRecord, Number>) bc.getUserData();
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bc.getData().clear();
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bc.getData().addAll(
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// SQL data transformation, executed in the database
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// -------------------------------------------------
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DSL.using(connection)
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ctx()
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.select(
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COUNTRIES.YEAR,
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COUNTRIES.CODE,
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field)
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.from(COUNTRIES)
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.join(
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table(
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DSL.table(
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select(COUNTRIES.CODE, avg(field).as("avg"))
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.from(COUNTRIES)
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.groupBy(COUNTRIES.CODE)
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).as("c1")
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)
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.on(COUNTRIES.CODE.eq(fieldByName(String.class, "c1", COUNTRIES.CODE.getName())))
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.on(COUNTRIES.CODE.eq(field(name("c1", COUNTRIES.CODE.getName()), String.class)))
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// order countries by their average projected value
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.orderBy(
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fieldByName("avg"),
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field(name("avg")),
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COUNTRIES.CODE,
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COUNTRIES.YEAR)
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@ -163,7 +309,7 @@ public class BarChartSample extends Application {
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// If you're using PostgreSQL any commercial database, you could have
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// also taken advantage of window functions, which would have greatly
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// simplified the above SQL query:
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DSL.using(connection)
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ctx()
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.select(
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COUNTRIES.YEAR,
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COUNTRIES.CODE,
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@ -6,7 +6,9 @@ CREATE TABLE world.countries (
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code CHAR(2) NOT NULL,
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year INT NOT NULL,
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gdp_per_capita DECIMAL(10, 2) NOT NULL,
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govt_debt DECIMAL(10, 2) NOT NULL
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govt_debt DECIMAL(10, 2) NOT NULL,
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CONSTRAINT pk_countries PRIMARY KEY (code, year)
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);
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INSERT INTO world.countries
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