Insert Record by Drag & Drop from ADF Tree to ADF Tree Table
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by arul.wilson(at)oracle.com
on Oracle Blogs
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Published on Fri, 18 Feb 2011 15:10:50 +0530
Indexed on
2011/02/18
15:30 UTC
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If you want to create record based on the values Dragged from ADF Tree and Dropped on a ADF Tree Table, then here you go.
UseCase Description
User
Drags a tree node from ADF Tree and Drops it on a ADF Tree Table node.
A new row gets added in the Tree Table based on the source tree node,
subsequently a record gets added to the database table on which Tree
table in based on.
Following description helps to achieve this using ADF BC.
- Run the to create required tables.
- Create Business Components from tables (PRODUCTS, COMPONENTS, SUB_COMPONENTS, USERS, USER_COMPONENTS) created above.
- Add custom method to App Module Impl, this method will be used to insert record from view layer.
public String createUserComponents(String p_bugdbId, String p_productId, String p_componentId, String p_subComponentId){
Row newUserComponentsRow = this.getUserComponentsView1().createRow();
try {
newUserComponentsRow.setAttribute("Bugdbid", p_bugdbId);
newUserComponentsRow.setAttribute("ProductId", new oracle.jbo.domain.Number(p_productId));
newUserComponentsRow.setAttribute("Component1", p_componentId);
newUserComponentsRow.setAttribute("SubComponent", p_subComponentId);
} catch (Exception e) {
e.printStackTrace();
return "Failure";
}
return "Success";
}
- Expose this method to client interface.
- To display the root node we need a custom VO which can be achieved using below query.
SELECT Users.ACTIVE,
Users.BUGDB_ID,
Users.EMAIL,
Users.FIRSTNAME,
Users.GLOBAL_ID,
Users.LASTNAME,
Users.MANAGER_ID,
Users.MANAGER_PRIVILEGE
FROM USERS Users
WHERE Users.MANAGER_ID is NULL
- Create VL between UsersView and UsersRootNodeView VOs.
- Drop ProductsView from DC as ADF Tree to jspx page.
- Add Tree Level Rule based on ComponentsView and SubComponentsView.
- Drop UsersRootNodeView as ADF Tree Table
- Add Tree Level Rules based on UserComponentsView and UsersView.
- Add DragSource to ADF Tree and CollectionDropTarget to ADF Tree Table respectively.
- Bind CollectionDropTarget's DropTarget to backing bean and implement method of signature DnDAction (DropEvent),
this method gets invoked when Tree Table encounters a drop action, here
details required for creating new record are captured from the drag
source and passed to 'createUserComponents' method.
public DnDAction onTreeDrop(DropEvent dropEvent) {
String newBugdbId = "";
String msgtxt="";
try {
// Getting the target node bugdb id
Object serverRowKey = dropEvent.getDropSite();
if (serverRowKey != null) {
//Code for Tree Table as target
String dropcomponent = dropEvent.getDropComponent().toString();
dropcomponent = (String)dropcomponent.subSequence(0, dropcomponent.indexOf("["));
if (dropcomponent.equals("RichTreeTable")){
RichTreeTable richTreeTable = (RichTreeTable)dropEvent.getDropComponent();
richTreeTable.setRowKey(serverRowKey);
int rowIndexTreeTable = richTreeTable.getRowIndex();
//Drop Target Logic
if (((JUCtrlHierNodeBinding)richTreeTable.getRowData(rowIndexTreeTable)).getAttributeValue()==null) {
//Get Parent
newBugdbId = (String)((JUCtrlHierNodeBinding)richTreeTable.getRowData(rowIndexTreeTable)).getParent().getAttributeValue();
} else {
if (isNum(((JUCtrlHierNodeBinding)richTreeTable.getRowData(rowIndexTreeTable)).getAttributeValue().toString())) {
//Get Parent's parent
newBugdbId = (String)((JUCtrlHierNodeBinding)richTreeTable.getRowData(rowIndexTreeTable)).getParent().getParent().getAttributeValue();
} else{
//Dropped on USER
newBugdbId = (String)((JUCtrlHierNodeBinding)richTreeTable.getRowData(rowIndexTreeTable)).getAttributeValue();
}
}
}
}
DataFlavor<RowKeySet> df = DataFlavor.getDataFlavor(RowKeySet.class);
RowKeySet droppedValue = dropEvent.getTransferable().getData(df);
Object[] keys = droppedValue.toArray();
Key componentKey = null;
Key subComponentKey = null;
// binding for createUserComponents method defined in AppModuleImpl class to insert record in database.
operationBinding = bindings.getOperationBinding("createUserComponents");
// get the Product, Component, Subcomponent details and insert to UserComponents table.
// loop through the keys if more than one comp/subcomponent is select.
for (int i = 0; i < keys.length; i++) {
System.out.println("in for :"+i);
List list = (List)keys[i];
System.out.println("list "+i+" : "+list);
System.out.println("list size "+list.size());
if (list.size() == 1) {
// we cannot drag and drop the highest node !
msgtxt="You cannot drop Products, please drop Component or SubComponent from the Tree.";
System.out.println(msgtxt);
this.showInfoMessage(msgtxt);
} else {
if (list.size() == 2) {
// were doing the first branch, in this case all components.
componentKey = (Key)list.get(1);
Object[] droppedProdCompValues = componentKey.getAttributeValues();
operationBinding.getParamsMap().put("p_bugdbId",newBugdbId);
operationBinding.getParamsMap().put("p_productId",droppedProdCompValues[0]);
operationBinding.getParamsMap().put("p_componentId",droppedProdCompValues[1]);
operationBinding.getParamsMap().put("p_subComponentId","ALL");
Object result = operationBinding.execute();
} else {
subComponentKey = (Key)list.get(2);
Object[] droppedProdCompSubCompValues = subComponentKey.getAttributeValues();
operationBinding.getParamsMap().put("p_bugdbId",newBugdbId);
operationBinding.getParamsMap().put("p_productId",droppedProdCompSubCompValues[0]);
operationBinding.getParamsMap().put("p_componentId",droppedProdCompSubCompValues[1]);
operationBinding.getParamsMap().put("p_subComponentId",droppedProdCompSubCompValues[2]);
Object result = operationBinding.execute();
}
}
}
/* this.getCil1().setDisabled(false);
this.getCil1().setPartialSubmit(true); */
return DnDAction.MOVE;
} catch (Exception ex) {
System.out.println("drop failed with : " + ex.getMessage());
ex.printStackTrace();
/* this.getCil1().setDisabled(true); */
return DnDAction.NONE;
}
}
- Run jspx page and drop a Component or Subcomponent from Products Tree to UserComponents Tree Table.
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