[jbossseam-issues] [JBoss JIRA] Closed: (JBSEAM-93) give a Component more than one DataModel

give a Component more than one DataModel ---------------------------------------- Key: JBSEAM-93 URL: http://jira.jboss.com/jira/browse/JBSEAM-93 Project: JBoss Seam Issue Type: Feature Request Components: Core Affects Versions: 1.0 beta 1 Environment: normal Reporter: ya xiang Attachments: Component.java, DataModel2.java Original Estimate: 1 hour Remaining Estimate: 1 hour sometimes I need place more than one DataModel in one component control object. but at present, Componenent can only do a single DataModel. can model DataModel annotation and Component let it support multiple DataModel. I have a simple solution without modified exist model and application, just add DataModel2 annotation. and remain origin DataModel and its usage. code as follows: /** * FIXME:added by xiangya */ private Set<Field> dataModelFields = new HashSet<Field>(); public void inject(Object bean/*, boolean isActionInvocation*/) { injectMethods(bean/*, isActionInvocation*/); injectFields(bean/*, isActionInvocation*/); injectDataModelSelection(bean); injectDataModels(bean); } public void outject(Object bean) { outjectMethods(bean); outjectFields(bean); outjectDataModel(bean); outjectDataModels(bean); } //TODO: submit; private void injectDataModels(Object bean) { Field selectionIndexField=null, selectionField=null; for (Field field : dataModelFields) { DataModel2 dm = field.getAnnotation(DataModel2.class); String name = toName(dm.value(), field); javax.faces.model.DataModel dataModel = (javax.faces.model.DataModel)Contexts.getConversationContext().get(name); if (dataModel!=null){ if (dm.selectionIndex().length()>0){ try{ selectionIndexField =beanClass.getDeclaredField(dm.selectionIndex()); log.info(selectionIndexField); selectionIndexField.setAccessible(true); setFieldValue(bean, selectionIndexField, name, dataModel.getRowIndex()); }catch (NoSuchFieldException e) { log.info(String.format("can not found DataModelSelectionIndex %s in DataModel %s ", dm.value(), dm.selectionIndex())); } } if (dm.selection().length()>0){ try{ selectionField = beanClass.getDeclaredField(dm.selection()); log.info(selectionIndexField); selectionField.setAccessible(true); setFieldValue(bean, selectionField, name, dataModel.getRowData()); }catch(NoSuchFieldException e){ log.info(String.format("can not found DataModelSelection %s in DataModel %s", dm.value(), dm.selection())); } } } } } private void outjectDataModels(Object bean) { List list=null; for(Field field: dataModelFields){ list = (List) getFieldValue(bean, field); name = toName(field.getAnnotation(DataModel2.class).value(), field); if (list!=null) { ListDataModel dataModel = new org.jboss.seam.jsf.ListDataModel(list); Contexts.getConversationContext().set( name, dataModel ); } else { Contexts.getConversationContext().remove(name); } } } //TODO: submit; oooh, maybe I should create a patch.