ADF backing Bean中常用的代码

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// 刷新iterator bindings.refreshControl(); iterBind.executeQuery(); iterBind.refresh(DCIteratorBinding.RANGESIZE_UNLIMITED);

　　

Bean中常用方法：

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//获取binding容器 BindingContainer bindings        =  BindingContext.getCurrent().getCurrentBindingsEntry();

　　

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//获取Page definitions的 attribute的值 AttributeBinding attr = (AttributeBinding)bindings.getControlBinding("test"); attr.setInputValue(”test”);

　　

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// 获取action或者方法 OperationBinding method = bindings.getOperationBinding("methodAction"); method.execute(); List errors = method.getErrors();   method = bindings.getOperationBinding(”methodAction”); Map paramsMap = method.getParamsMap(); paramsMap.put(”param”,”value”)  ; method.execute();

　　

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// 从ADF Tree 或者 Table中获取数据 DCBindingContainer dcBindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry(); FacesCtrlHierBinding treeData = (FacesCtrlHierBinding)bc.getControlBinding(”tree”); Row[] rows = treeData.getAllRowsInRange();

　　

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// 从iterator 的当前行获取一个 attribute的值 DCIteratorBinding iterBind= (DCIteratorBinding)dcBindings.get(”testIterator”); String attribute = (String)iterBind.getCurrentRow().getAttribute(”field1″); <code> <code lang="java"> // 获取错误 String error = iterBind.getError().getMessage();

　　

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// 获取 iterator的所有行 Row[] rows = iterBind.getAllRowsInRange(); TestData dataRow = null; for (Row row : rows) { dataRow = (TestData)((DCDataRow)row).getDataProvider(); }

　　

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//获取iterator当前行的另一种方法 FacesContext ctx = FacesContext.getCurrentInstance(); ExpressionFactory ef = ctx.getApplication().getExpressionFactory(); ValueExpression ve = ef.createValueExpression(ctx.getELContext(), “#{bindings.testIter.currentRow.dataProvider}”, TestHead.class); TestHead test = (TestHead)ve.getValue(ctx.getELContext());

　　

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// 获得一个on bean FacesContext ctx = FacesContext.getCurrentInstance(); ExpressionFactory ef = ctx.getApplication().getExpressionFactory(); ValueExpression ve = ef.createValueExpression(ctx.getELContext(), “#{testSessionBean}”, TestSession.class); TestSession test = (TestSession)ve.getValue(ctx.getELContext());

　　

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//获取askflow的Binding DCTaskFlowBinding tf = (DCTaskFlowBinding)dc.findExecutableBinding(”dynamicRegion1″); <code> <code lang="java"> //获取异常并显示到页面 catch(Exception e) { FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_ERROR, e.getMessage(), “”); FacesContext.getCurrentInstance().addMessage(null, msg); }

　　

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// 重置控件的所有子控件 private void resetValueInputItems(AdfFacesContext adfFacesContext, UIComponent component){ List items = component.getChildren(); for ( UIComponent item : items ) { resetValueInputItems(adfFacesContext,item); if ( item instanceof RichInputText  ) { RichInputText input = (RichInputText)item; if ( !input.isDisabled() ) { input.resetValue() ; adfFacesContext.addPartialTarget(input); }; } else if ( item instanceof RichInputDate ) { RichInputDate input = (RichInputDate)item; if ( !input.isDisabled() ) { input.resetValue() ; adfFacesContext.addPartialTarget(input); }; } } }

　　

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// 重定向到另一个URL ExternalContext ectx = FacesContext.getCurrentInstance().getExternalContext(); HttpServletResponse response = (HttpServletResponse)ectx.getResponse(); String url = ectx.getRequestContextPath()+”/adfAuthentication?logout=true&end_url=/faces/start.jspx”; try { response.sendRedirect(url); } catch (Exception ex) { ex.printStackTrace(); } <code lang="java"> // 刷新控件（PPR） AdfFacesContext.getCurrentInstance().addPartialTarget(UIComponent); // 查找控件 private UIComponent getUIComponent(String name) { FacesContext facesCtx = FacesContext.getCurrentInstance(); return facesCtx.getViewRoot().findComponent(name) ; }

　　

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//获取 bc application module private OEServiceImpl getAm(){ FacesContext fc = FacesContext.getCurrentInstance(); Application app = fc.getApplication(); ExpressionFactory elFactory = app.getExpressionFactory(); ELContext elContext = fc.getELContext(); ValueExpression valueExp = elFactory.createValueExpression(elContext, “#{data.OEServiceDataControl.dataProvider}”, Object.class); return   (OEServiceImpl)valueExp.getValue(elContext); }

　　

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//获取table选中的行 RowKeySet selection = resultTable.getSelectedRowKeys(); Object[] keys = selection.toArray(); List receivers = new ArrayList(keys.length); for ( Object key : keys ) { User user = modelFriends.get((Integer)key); }

　　

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// 获取table选中的行的另一种 for (Object facesRowKey : table.getSelectedRowKeys()) { table.setRowKey(facesRowKey); Object o = table.getRowData(); JUCtrlHierNodeBinding rowData = (JUCtrlHierNodeBinding)o; Row row = rowData.getRow(); Test testRow = (Test)((DCDataRow)row).getDataProvider() ; }

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