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copied!<p>After some trouble, I figured how to achieve this. Basically we have to programmatically extract all the report items, data sets etc in each report and stick them in the new Master Report. After every child reoprt, I make sure a pagebreak is insert so that the next report will come on the next page. A rough code for this is :-</p> <pre><code>public class ReportGen { private static ReportDesignHandle reportDesignHandle; private static ElementFactory elementFactory; private static ReportDesignHandle reportDesignHandle1; public static void main(String[] args) { executeReport(); } public static void executeReport() { IReportEngine engine = null; EngineConfig config = null; try { config = new EngineConfig(); config.setBIRTHome("/home/vineeth/Softwares/birt-runtime-2_6_2/ReportEngine"); config.setLogConfig("/home/vineeth/Softwares", Level.FINEST); Platform.startup(config); IReportEngineFactory factory = (IReportEngineFactory) Platform .createFactoryObject(IReportEngineFactory.EXTENSION_REPORT_ENGINE_FACTORY); engine = factory.createReportEngine(config); IReportRunnable design = null; //Open the report design design = engine.openReportDesign("/home/vineeth/cash_flow_summary.rptdesign"); SessionHandle sessionHandle = DesignEngine.newSession(null); reportDesignHandle = sessionHandle.createDesign(); elementFactory = reportDesignHandle.getElementFactory(); reportDesignHandle1 = (ReportDesignHandle) design.getDesignHandle(); DesignElementHandle cashflow = reportDesignHandle1.findElement("cashflow"); DesignElementHandle designElementHandle = reportDesignHandle1.getBody().get(0); if (designElementHandle instanceof ExtendedItemHandle) { ExtendedItemHandle itemHandle = (ExtendedItemHandle) designElementHandle; ExtendedItem item = (ExtendedItem) itemHandle.getElement(); ExtendedItem newItem1 = (ExtendedItem) item.doClone(CopyForPastePolicy.getInstance()); newItem1.setName("cf1"); newItem1.setProperty(DesignChoiceConstants.CHOICE_PAGE_BREAK_AFTER, DesignChoiceConstants.PAGE_BREAK_AFTER_ALWAYS); ExtendedItemHandle newItemHandle1 = new ExtendedItemHandle(reportDesignHandle.getModule(), newItem1); reportDesignHandle.getBody().add(newItemHandle1); ExtendedItem newItem2 = (ExtendedItem) item.doClone(CopyForPastePolicy.getInstance()); newItem2.setName("cf2"); newItem2.setProperty(DesignChoiceConstants.CHOICE_PAGE_BREAK_AFTER, DesignChoiceConstants.PAGE_BREAK_AFTER_ALWAYS); ExtendedItemHandle newItemHandle2 = new ExtendedItemHandle(reportDesignHandle.getModule(), newItem2); reportDesignHandle.getBody().add(newItemHandle2); ExtendedItem newItem3 = (ExtendedItem) item.doClone(CopyForPastePolicy.getInstance()); newItem3.setName("cf3"); newItem3.setProperty(DesignChoiceConstants.CHOICE_PAGE_BREAK_AFTER, DesignChoiceConstants.PAGE_BREAK_AFTER_ALWAYS); ExtendedItemHandle newItemHandle3 = new ExtendedItemHandle(reportDesignHandle.getModule(), newItem3); reportDesignHandle.getBody().add(newItemHandle3); DataSourceHandle dataSourceHandle = (DataSourceHandle) reportDesignHandle1.getDataSources().get(0); DataSource ds = (DataSource) dataSourceHandle.copy(); DataSourceHandle newDSHandle = null; if (ds instanceof OdaDataSource) { newDSHandle = new OdaDataSourceHandle(reportDesignHandle.getModule(), ds); } reportDesignHandle.getDataSources().add(newDSHandle); DataSetHandle dataSetHandle = (DataSetHandle) reportDesignHandle1.getDataSets().get(0); OdaDataSet copyDataSetHandle = (OdaDataSet) dataSetHandle.copy(); DataSetHandle copyDSHandle = new OdaDataSetHandle(reportDesignHandle.getModule(), copyDataSetHandle); reportDesignHandle.getDataSets().add(copyDSHandle); } //reportDesignHandle.getBody().add(reportDesignHandle1.getBody().get(0)); //reportDesignHandle.getBody().add(reportDesignHandle1.getBody().get(0)); IReportRunnable newDesign = engine.openReportDesign(reportDesignHandle); IRunAndRenderTask task = engine.createRunAndRenderTask(newDesign); HTMLRenderOption options = new HTMLRenderOption(); options.setOutputFileName("/home/vineeth/Softwares/out.html"); options.setOutputFormat("html"); task.setRenderOption(options); task.run(); task.close(); engine.destroy(); } catch (Exception ex) { ex.printStackTrace(); } finally { Platform.shutdown(); } } </code></pre> <p>}</p>

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