Package org.apache.metamodel.data

Examples of org.apache.metamodel.data.EmptyDataSet

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            }
        }
        ds1.close();

        if (resultRows.isEmpty()) {
            return new EmptyDataSet(selectItems);
        }

        return new InMemoryDataSet(header, resultRows);
    }
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                    if (!resultSet.next()) {
                        // the result set was not as long as the first row
                        if (resultSet != null) {
                            resultSet.close();
                        }
                        return new EmptyDataSet(query.getSelectClause().getItems());
                    }
                }
            }

            if (lease == null) {
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    public DataSet executeQuery(InputStream inputStream, Table table, Column[] columns, int maxRows) {
        final Workbook wb = ExcelUtils.readWorkbook(inputStream);
        final Sheet sheet = wb.getSheet(table.getName());

        if (sheet == null || sheet.getPhysicalNumberOfRows() == 0) {
            return new EmptyDataSet(columns);
        }

        DataSet dataSet = ExcelUtils.getDataSet(wb, sheet, table, _configuration);

        if (maxRows > 0) {
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            SelectItem[] columnSelectItems = MetaModelHelper.createSelectItems(columns);
            ds = MetaModelHelper.getSelection(columnSelectItems, ds);

            return ds;
        } else if ("an_empty_table".equals(table.getName())) {
            return new EmptyDataSet(columns);
        }
        throw new UnsupportedOperationException();
    }
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                selectItems.add(new SelectItem(columns[0]));
            }
        }

        if (maxRows == 0) {
            return new EmptyDataSet(selectItems);
        }

        final Schema schema = table.getSchema();
        final String schemaName;
        if (schema == null) {
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            throw new IllegalArgumentException("Cannot materialize non information_schema table: " + table);
        }

        DataSet dataSet;
        if (data.isEmpty()) {
            dataSet = new EmptyDataSet(selectItems);
        } else {
            dataSet = new InMemoryDataSet(header, data);
        }

        // Handle column subset
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Related Classes of org.apache.metamodel.data.EmptyDataSet

  • org.apache.metamodel.csv.CsvDataContext
  • org.apache.metamodel.excel.DefaultSpreadsheetReaderDelegate
  • org.apache.metamodel.excel.ExcelUtils
  • org.apache.metamodel.jdbc.JdbcDataContext
  • org.apache.metamodel.MetaModelHelper
  • org.apache.metamodel.MetaModelHelperTest
  • org.apache.metamodel.MetaModelTestCase
  • org.apache.metamodel.MockDataContext
  • org.apache.metamodel.MockUpdateableDataContext
  • org.apache.metamodel.QueryPostprocessDataContext
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