How to use

FieldBuilder

in

net.sf.dynamicreports.report.builder

/**
 * <p>getField.</p>
 *
 * @return a {@link net.sf.dynamicreports.report.base.DRField} object.
 */
public DRField<T> getField() {
  return build();
}

/**
 * <p>field.</p>
 *
 * @param name     a {@link java.lang.String} object.
 * @param dataType a {@link net.sf.dynamicreports.report.definition.datatype.DRIDataType} object.
 * @param <T>      a T object.
 * @return a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
public static <T> FieldBuilder<T> field(String name, DRIDataType dataType) {
  Validate.notNull(dataType, "dataType must not be null");
  FieldBuilder<T> fieldBuilder = new FieldBuilder<T>(name, dataType.getValueClass());
  fieldBuilder.setDataType(dataType);
  return fieldBuilder;
}

/**
 * <p>Constructor for PercentageSubtotalBuilder.</p>
 *
 * @param field        a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 * @param showInColumn a {@link net.sf.dynamicreports.report.builder.column.ColumnBuilder} object.
 */
protected PercentageSubtotalBuilder(FieldBuilder<? extends Number> field, ColumnBuilder<?, ?> showInColumn) {
  this(field.getField(), showInColumn);
}

/**
 * <p>setDescription.</p>
 *
 * @param description a {@link java.lang.String} object.
 * @return a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
public FieldBuilder<T> setDescription(String description) {
  getObject().setDescription(description);
  return this;
}

  private void build() {
    try {
      JRXmlDataSource dataSource = new JRXmlDataSource(XmlDatasourceReport.class.getResourceAsStream("sales.xml"), "/sales/item");
      JRXmlDataSource chartDataSource = dataSource.dataSource("/sales/chart/item");

      FieldBuilder<Object> idField = field("id", type.integerType()).setDescription("@id");
      FieldBuilder<String> itemField = field("item", type.stringType());
      FieldBuilder<Integer> quantityField = field("quantity", type.integerType());
      FieldBuilder<BigDecimal> unitPriceField = field("unitprice", type.bigDecimalType());

      BarChartBuilder barChart = cht.barChart().setDataSource(chartDataSource).setCategory(itemField).series(cht.serie(quantityField).setLabel("Quantity"));

      report().setTemplate(Templates.reportTemplate)
          .columns(col.column("Id", idField), col.column("Item", itemField), col.column("Quantity", quantityField), col.column("Unit price", unitPriceField))
          .title(Templates.createTitleComponent("XmlDatasource"))
          .summary(barChart)
          .pageFooter(Templates.footerComponent)
          .setDataSource(dataSource)
          .show();
    } catch (DRException e) {
      e.printStackTrace();
    } catch (JRException e) {
      e.printStackTrace();
    }
  }
}

/**
 * <p>setDataType.</p>
 *
 * @param dataType a {@link net.sf.dynamicreports.report.definition.datatype.DRIDataType} object.
 * @return a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
public FieldBuilder<T> setDataType(DRIDataType<? super T, T> dataType) {
  getObject().setDataType(dataType);
  return this;
}

/**
 * <p>Constructor for AggregationSubtotalBuilder.</p>
 *
 * @param field        a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 * @param showInColumn a {@link net.sf.dynamicreports.report.builder.column.ColumnBuilder} object.
 * @param calculation  a {@link net.sf.dynamicreports.report.constant.Calculation} object.
 */
protected AggregationSubtotalBuilder(FieldBuilder<?> field, ColumnBuilder<?, ?> showInColumn, Calculation calculation) {
  this(field.build(), showInColumn, calculation);
}

/**
 * <p>Constructor for PercentageColumnBuilder.</p>
 *
 * @param field a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
protected PercentageColumnBuilder(FieldBuilder<? extends Number> field) {
  Validate.notNull(field, "field must not be null");
  this.actualExpression = field.getField();
}

/**
 * <p>field.</p>
 *
 * @param name       a {@link java.lang.String} object.
 * @param valueClass a {@link java.lang.Class} object.
 * @param <T>        a T object.
 * @return a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
public static <T> FieldBuilder<T> field(String name, Class valueClass) {
  FieldBuilder<T> fieldBuilder = new FieldBuilder<T>(name, valueClass);
  try {
    DRIDataType<? super T, T> dataType = DataTypes.detectType(valueClass);
    fieldBuilder.setDataType(dataType);
  } catch (DRException e) {
  }
  return fieldBuilder;
}

/**
 * <p>Constructor for CustomGroupBuilder.</p>
 *
 * @param field a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
protected CustomGroupBuilder(FieldBuilder<?> field) {
  Validate.notNull(field, "field must not be null");
  setValueExpression(field.build());
}

/**
 * <p>addExpression.</p>
 *
 * @param field a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
protected void addExpression(FieldBuilder<?> field) {
  Validate.notNull(field, "field must not be null");
  this.expressions.add(field.getField());
}

/**
 * <p>Constructor for CustomGroupBuilder.</p>
 *
 * @param name  a {@link java.lang.String} object.
 * @param field a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
protected CustomGroupBuilder(String name, FieldBuilder<?> field) {
  super(name);
  Validate.notNull(field, "field must not be null");
  setValueExpression(field.build());
}

/**
 * <p>Constructor for VariableBuilder.</p>
 *
 * @param field       a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 * @param calculation a {@link net.sf.dynamicreports.report.constant.Calculation} object.
 */
protected VariableBuilder(FieldBuilder<?> field, Calculation calculation) {
  super(new DRVariable<T>(field.getField(), calculation));
}

/**
 * <p>getFieldExpression.</p>
 *
 * @param name a {@link java.lang.String} object.
 * @return a {@link net.sf.dynamicreports.report.definition.expression.DRIExpression} object.
 */
protected DRIExpression<?> getFieldExpression(String name) {
  DRIDataType<?, ?> type = getFieldType(name);
  if (type != null) {
    return DynamicReports.field(name, type).build();
  }
  return DynamicReports.field(name, Object.class).build();
}

/**
 * <p>Constructor for VariableBuilder.</p>
 *
 * @param name        a {@link java.lang.String} object.
 * @param field       a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 * @param calculation a {@link net.sf.dynamicreports.report.constant.Calculation} object.
 */
protected VariableBuilder(String name, FieldBuilder<?> field, Calculation calculation) {
  super(new DRVariable<T>(name, field.getField(), calculation));
}

/**
 * <p>setHigh.</p>
 *
 * @param field a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 * @return a T object.
 */
public T setHigh(FieldBuilder<? extends Number> field) {
  Validate.notNull(field, "field must not be null");
  getDataset().setHighExpression(field.build());
  return (T) this;
}

  /**
   * {@inheritDoc}
   */
  @Override
  public String getName() {
    return getField().getName();
  }
}

/**
 * <p>setOpen.</p>
 *
 * @param field a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 * @return a T object.
 */
public T setOpen(FieldBuilder<? extends Number> field) {
  Validate.notNull(field, "field must not be null");
  getDataset().setOpenExpression(field.build());
  return (T) this;
}

/**
 * <p>Constructor for TextColumnBuilder.</p>
 *
 * @param field a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 */
protected TextColumnBuilder(FieldBuilder<T> field) {
  Validate.notNull(field, "field must not be null");
  setValueExpression(field.getField());
}

/**
 * <p>setVolume.</p>
 *
 * @param field a {@link net.sf.dynamicreports.report.builder.FieldBuilder} object.
 * @return a T object.
 */
public T setVolume(FieldBuilder<? extends Number> field) {
  Validate.notNull(field, "field must not be null");
  getDataset().setVolumeExpression(field.build());
  return (T) this;
}