ADF Mobile - Create Drill Down Graph Reports

Drill Down Graph Report - Scenario here is to show all the cars sales report for this year in Pie Chart and when user click a individual car in pie chart slice, a drill through report opens, which accepts the car type as a parameter, and then displays car models sale in Bar Chart.

In ADF Mobile, "clickListener" method is not provided for DVT components. Click listener interface will receive click events on the gauge components and can do further data process in BC4J.  In ADF Mobile "Action" method is supported on DataItem in the graphs. Action defines a reference to the an action method sent by the command button component, or static outcome of an action. So in this article I'm explaining how to build drill down reports using <dvtm:pieChart> and <dvtm:barChart>.

Application screen looks like below when it deployed and run on Android Device/Emulator. Displays the Cars Sales Reports in first screen.

In above screen, slide the screen towards right. Notice only check boxes are displayed and attributes values(Legends) are not getting displayed for the pie chart slices, this could be an error. 

Next click on any pie chart slice and respective car models will be displayed in Bar Chart screen.

You can download the sample workspace from here

[Runs with Oracle JDeveloper 11.1.2.3.0]

Implementation Steps

Create an ADF Mobile Application, the application consists of two projects. Application Controller project of Application LifeCycle, Listeners, Device Features DataControl and ViewController project contains mobile features content like AMX Files, Task Flows and DataControl.

In ViewController project, locate and expand the Application Sources folder, create a Cars.java file and add the below code.

public class Cars {
    private String carName;
    private int carSalesCount;
    private transient PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);

    public Cars() {
        super();
    }

    public Cars(String carName, int carSalesCount) {
        this.carName = carName;
        this.carSalesCount = carSalesCount;
    }

    public void setCarName(String carName) {
        String oldCarName = this.carName;
        this.carName = carName;
        propertyChangeSupport.firePropertyChange("carName", oldCarName, carName);
    }

    public String getCarName() {
        return carName;
    }

    public void setCarSalesCount(int carSalesCount) {
        int oldCarSalesCount = this.carSalesCount;
        this.carSalesCount = carSalesCount;
        propertyChangeSupport.firePropertyChange("carSalesCount", oldCarSalesCount, carSalesCount);
    }

    public int getCarSalesCount() {
        return carSalesCount;
    }

    public void setPropertyChangeSupport(PropertyChangeSupport propertyChangeSupport) {
        this.propertyChangeSupport = propertyChangeSupport;
    }

    public PropertyChangeSupport getPropertyChangeSupport() {
        return propertyChangeSupport;
    }
}

Create CarModels.java file and add the below code.

public class CarModels extends Cars {
    private String modelName;
    private int modelSalesCount;
    private transient PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);

    public CarModels() {
        super();
    }

    public CarModels(String carName, String modelName, int modelSalesCount) {
        super();
        setCarName(carName);
        this.modelName = modelName;
        this.modelSalesCount = modelSalesCount;
    }

    public void setModelName(String modelName) {
        String oldModelName = this.modelName;
        this.modelName = modelName;
        propertyChangeSupport.firePropertyChange("modelName", oldModelName, modelName);
    }

    public String getModelName() {
        return modelName;
    }

    public void setModelSalesCount(int modelSalesCount) {
        int oldModelSalesCount = this.modelSalesCount;
        this.modelSalesCount = modelSalesCount;
        propertyChangeSupport.firePropertyChange("modelSalesCount", oldModelSalesCount, modelSalesCount);
    }

    public int getModelSalesCount() {
        return modelSalesCount;
    }

    public void setPropertyChangeSupport(PropertyChangeSupport propertyChangeSupport) {
        this.propertyChangeSupport = propertyChangeSupport;
    }

    public PropertyChangeSupport getPropertyChangeSupport() {
        return propertyChangeSupport;
    }
}

Create Generic.java file and add the below code, create DataControl based on Generic.java file.

public class Generic {
    private static List s_cars = null;
    private static List s_carModels = null;
    private static List s_filterCarModels = null;
    private transient ProviderChangeSupport providerChangeSupport = new ProviderChangeSupport(this);
    private transient PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);

    public Generic() {
        super();
        if (s_cars == null) {
            s_cars = new ArrayList();
            s_cars.add(new Cars("Audi", 2000));
            s_cars.add(new Cars("BMW", 2500));
            s_cars.add(new Cars("Honda", 5000));
            s_cars.add(new Cars("Mitsubishi", 1000));
            s_cars.add(new Cars("Toyota", 4000));
            s_cars.add(new Cars("Volkswagen", 3000));
        }
        if (s_carModels == null) {
            s_carModels = new ArrayList();
            s_carModels.add(new CarModels("Audi", "A3", 300));
            s_carModels.add(new CarModels("Audi", "A4", 1000));
            s_carModels.add(new CarModels("Audi", "Quattro", 700));
            s_carModels.add(new CarModels("BMW", "BMW128", 1000));
            s_carModels.add(new CarModels("BMW", "BMW528", 800));
            s_carModels.add(new CarModels("BMW", "Gran Coupe", 700));
            s_carModels.add(new CarModels("Honda", "Accord", 1200));
            s_carModels.add(new CarModels("Honda", "Civic", 2000));
            s_carModels.add(new CarModels("Honda", "Hybrid", 1800));
            s_carModels.add(new CarModels("Mitsubishi", "Lancer", 400));
            s_carModels.add(new CarModels("Mitsubishi", "Evolution", 300));
            s_carModels.add(new CarModels("Mitsubishi", "Outlander", 300));
            s_carModels.add(new CarModels("Toyota", "Camry", 1800));
            s_carModels.add(new CarModels("Toyota", "Corolla", 1200));
            s_carModels.add(new CarModels("Toyota", "Cruiser", 1000));
            s_carModels.add(new CarModels("Volkswagen", "Beetle", 1300));
            s_carModels.add(new CarModels("Volkswagen", "Jetta", 800));
            s_carModels.add(new CarModels("Volkswagen", "Tiguan", 900));
        }

    }

    public void addPropertyChangeListener(PropertyChangeListener l) {
        propertyChangeSupport.addPropertyChangeListener(l);
    }

    public void removePropertyChangeListener(PropertyChangeListener l) {
        propertyChangeSupport.removePropertyChangeListener(l);
    }

    public void addProviderChangeListener(ProviderChangeListener l) {
        providerChangeSupport.addProviderChangeListener(l);
    }

    public void removeProviderChangeListener(ProviderChangeListener l) {
        providerChangeSupport.removeProviderChangeListener(l);
    }

    /**
     * Method will populate the result list to s_cars.
     */
    public Cars[] getCars() {
        Cars c[] = null;
        c = (Cars[])s_cars.toArray(new Cars[s_cars.size()]);
        return c;
    }

    /**
     * Method will populate the result list to s_carModels.
     */
    public CarModels[] getCarModels() {
        CarModels cm[] = null;
        cm = (CarModels[])s_carModels.toArray(new CarModels[s_carModels.size()]);
        return cm;
    }

    /**
     * Method will filter the result from s_carModels list.
     */
    public CarModels[] filteredCarModels(String carType) {
        CarModels cm[] = null;
        s_filterCarModels = new ArrayList();
        for (Iterator i = s_carModels.iterator(); i.hasNext(); ) {
            CarModels curCM = (CarModels)i.next();
            if (curCM.getCarName().equals(carType)) {
                s_filterCarModels.add(new CarModels(curCM.getCarName(), curCM.getModelName(),
                                                    curCM.getModelSalesCount()));
            }
        }
        cm = (CarModels[])s_filterCarModels.toArray(new CarModels[s_filterCarModels.size()]);
        providerChangeSupport.fireProviderRefresh("carModels");
        return cm;
    }
}

In ViewController project. Locate and expand the Application Sources folder, then expand the META-INF folder. You will see the adfmf-feature.xml file, click on the adfmf-feature.xml file to launch the Feature editor. Add a new feature by clicking the green plus sign on the Features table near top of the editor this will launch the new Create ADF Mobile Feature dialog, modify the values as shown below.

In the Features table, select the newly created feature Graph. Under the Features table, click the Content tab, and locate the Content table. Notice that the content item Graph.1 is created by default. Next add a new file by clicking the green plus sign and select taskflow option, this will launch the new Create ADF Mobile Task Flow dialog, modify the value as shown below.

Click on the GraphTaskflow.xml to open the file in taskflow editor and follow the below steps.
1) Create two views and name them as carsView and carModelsView respectively.
 2) Draw the control flow case from carsView to carModelsView and Outcome as "carsModel", Behavior->Transition as "flipRight".
 3) Draw the control flow case from carModelsView to carsView and Outcome as "car", Behavior->Transition as "slideLeft".

Double click on carsView view will launch Create ADF Mobile AMX Page dialog. Open the carsView.amx page and to source tab and follow the below steps:

1) In Header facet, amx:outputText set the value as "Sales Report"
2) From DC palette drag and drop Generic->Cars->ADF Mobile Chart and in Component Gallery dialog, select Pie chart and click ok.
3) In Create Mobile Pie Chart dialog, select the values as shown in below image.

4) For dvtm:pieDataItem, set the action as "action" and drop amx:setPropertyListener and modify the values as shown in below code.

 <dvtm:pieChart var="row" value="#{bindings.cars.collectionModel}" id="pc1" animationOnDisplay="auto"
                       inlineStyle="width:400px; height:280px; float:left; background-color:white;" threeDEffect="on"
                       title="Car">
            <amx:facet name="dataStamp">
                <dvtm:pieDataItem sliceId="#{row.carName}" value="#{row.carSalesCount}" action="carsModel">
                    <amx:setPropertyListener from="#{row.carName}" to="#{pageFlowScope.carName}"/>
                </dvtm:pieDataItem>
            </amx:facet>
 </dvtm:pieChart>           

Double click on carModelsView view will launch Create ADF Mobile AMX Page dialog, in page facets select Header, Primary Action. Open the deptList.amx page and to source tab and follow the below steps:

1) In Header facet, amx:outputText set the value as "Sales Report"
2) In Seconday Action facet, for amx:commandButton modify the values text: Back, action: __back.
3) From DC palette drag and drop Generic->filteredCarModels->CarModels->ADF Mobile Chart and in Component Gallery dialog, select Bar chart and click ok.
4) In Create Mobile Bar Chart dialog, select the values as shown in below image.

Enter the carType parameter value as #{pageFlowScope.carName}.

Open the carModelsView.amx and modify the properties for dvtm:barChart as shown below.

<dvtm:barChart var="row" value="#{bindings.CarModels.collectionModel}" id="bc1"
      inlineStyle="width:400px; height:300px; float:left; background-color:white;"
      title="#{pageFlowScope.carName} Car Models">
 <amx:facet name="dataStamp">
  <dvtm:chartDataItem group="#{row.modelName}" value="#{row.modelSalesCount}" series="Sales Count"/>
 </amx:facet>
 <dvtm:legend position="end" id="l1"/>
</dvtm:barChart>

Click on Create Executable binding and select Invoke action and follow as shown in below image.

Edit invokeFilterdCarModels invoke actiion and set the Refresh to always, so when ever page loads employeesTotalRows method will get executed.

Note:- When the screen loads for the first time Bar Chart will get cached and for second time execution filteredCarModels method will not get executed at all even if the parameter value changed. To overcome this we have to set invoke Action for filteredCarModels method, this executes the  invokeAction every time a page is navigated to regardless of the state of the binding container.

Preview of the carsView.amx and carModelsView.amx will looks like below.

In the Application menu, select Deploy - New Deployment Profile to start the Create Deployment Profile dialog box. In the Profile Type drop-down list, ensure ADF Mobile for Android/IOS is selected and then click OK. Next select Deploy - New Deployment deployment profile. In the subsequent dialog box, select Deploy application to device/emulator/package, and click Finish.

ADF Mobile - Access Device Native SQLite Database to Store Data

Today I learnt on how to access device native SQLite database to store data and perform CRUD operations. This is my first article on ADF Mobile, In this article I will show on how to read data for display, create and save new record to the database.

You can find more examples in Oracle ADF Mobile Samples, by looking into the samples and Debugging ADF Mobile Apps on Android. I was able to use SQLite database to store the data.

Download the sample workspace from here and application screen looks like below when it deployed to Android Emulator. Displaying the Departments List is fetched from SQLite, click on the Add button to create new department record.

Enter the details in the department form and click on Save button. The Department information will saved to the database and moved to Dept List screen.

Department list will get updated by newly added department record.

Implementation Steps

Create an ADF Mobile Application, the application consists of two projects. Application Controller project of Application LifeCycle, Listeners, Device Features DataControl and ViewController project contains mobile features content like AMX Files, Task Flows and DataControl.

In Application Controller project. Create a DBConnectionFactory.java class and copy the below code, this class contains code for connecting to SQLlite DB. Connecting to the SQLite database is somewhat different from opening a connection to an Oracle database, here use the java.sql.Connection object associated with your application to connect to the SQLite database.

public class DBConnectionFactory {
    protected static Connection conn = null;

    public DBConnectionFactory() {
        super();
    }

    /**
     * Connect to the SQLite database
     * @return
     * @throws Exception
     */
    public static Connection getConnection() throws Exception {
        if (conn == null) {
            try {
                // ApplicationDirectory returns the private read-write sandbox area
                // of the mobile device's file system that this application can access.
                // This is where the database is created
                String Dir = AdfmfJavaUtilities.getDirectoryPathRoot(AdfmfJavaUtilities.ApplicationDirectory);
                String connStr = "jdbc:sqlite:" + Dir + "/DEMO.db";

                // If the database does not exist, a new database is automatically
                // created when the SQLite JDBC connection is created
                conn = new SQLite.JDBCDataSource(connStr).getConnection();
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
        return conn;
    }
}

Note:- demo.sql file should be put in .adf/META-INF/ folder. You can get the sql file by downloading the MobileDemo application.

Open LifeCycleListenerImpl.java file and add the below method code.

/**
* This method will read the sql file and
* commit the sql statements to the SQLite DB
*/
private void InitDB() {
	try {
		// Since the SQL script has been packaged as a resource within
		// the application, the getResourceAsStream method is used
		ClassLoader cl = Thread.currentThread().getContextClassLoader();
		InputStream is = cl.getResourceAsStream(".adf/META-INF/demo.sql");
		if (is == null) {
			System.err.println("Could not look up : .adf/META-INF/demo.sql");
			return;
		}

		BufferedReader bReader = new BufferedReader(new InputStreamReader(is));
		List stmts = new ArrayList();
		String strstmt = "";
		String ln = bReader.readLine();

		// The while loop iterates over all the lines in the SQL script,
		// assembling them into valid SQL statements and executing them as
		// a terminating semicolon is encountered
		while (ln != null) {
			// Skipping blank lines, comments, and COMMIT statements
			if (ln.startsWith("REM") || ln.startsWith("COMMIT")) {
				ln = bReader.readLine();
				continue;
			}
			strstmt = strstmt + ln;
			if (strstmt.endsWith(";")) {
				stmts.add(strstmt);
				strstmt = "";
				ln = bReader.readLine();
				continue;
			}
			ln = bReader.readLine();
		}

		// To improve performance, the statements are executed
		// one at a time in the context of a single transaction
		DBConnectionFactory.getConnection().setAutoCommit(false);
		for (int i = 0; i < stmts.size(); i++) {
			Statement pStmt = DBConnectionFactory.getConnection().createStatement();
			pStmt.executeUpdate((String)stmts.get(i));
		}
		DBConnectionFactory.getConnection().commit();
	} catch (Exception e) {
		e.printStackTrace();
	}
}

In Start() method LifeCycleListenerImpl.java file, add the below code.

try {
	//Getting the connection to the database
	Statement stat = DBConnectionFactory.getConnection().createStatement();
	ResultSet rs = stat.executeQuery("SELECT * FROM DEPARTMENTS;");
  } catch (SQLException e) {
	// if the error message is "out of memory",
	// it probably means no database file is found
	InitDB();
  } catch (Exception e) {
	e.printStackTrace();
}

Expand the ViewController project. Locate and expand the Application Sources folder, create a Department.java file and add the below code.

public class Department {
    protected int deptId;
    protected String deptName;
    protected int mgrId;
    protected int locId;
    private transient PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);

    public Department() {
        super();
    }

    public Department(int deptId, String deptName, int mgrId, int locId) {
        setDeptId(deptId);
        setDeptName(deptName);
        setMgrId(mgrId);
        setLocId(locId);
    }

    Department(Department newDept) {
        setDeptId(newDept.getDeptId());
        setDeptName(newDept.getDeptName());
        setMgrId(newDept.getMgrId());
        setLocId(newDept.getLocId());
    }

    public String getKey() {
        Integer i = new Integer(deptId);
        return i.toString();
    }

    public void addPropertyChangeListener(PropertyChangeListener l) {
        propertyChangeSupport.addPropertyChangeListener(l);
    }

    public void removePropertyChangeListener(PropertyChangeListener l) {
        propertyChangeSupport.removePropertyChangeListener(l);
    }


    public void setDeptId(int deptId) {
        int oldDeptId = this.deptId;
        this.deptId = deptId;
        propertyChangeSupport.firePropertyChange("deptId", oldDeptId, deptId);
    }

    public int getDeptId() {
        return deptId;
    }

    public void setDeptName(String deptName) {
        String oldDeptName = this.deptName;
        this.deptName = deptName;
        propertyChangeSupport.firePropertyChange("deptName", oldDeptName, deptName);
    }

    public String getDeptName() {
        return deptName;
    }

    public void setMgrId(int mgrId) {
        int oldMgrId = this.mgrId;
        this.mgrId = mgrId;
        propertyChangeSupport.firePropertyChange("mgrId", oldMgrId, mgrId);
    }

    public int getMgrId() {
        return mgrId;
    }

    public void setLocId(int locId) {
        int oldLocId = this.locId;
        this.locId = locId;
        propertyChangeSupport.firePropertyChange("locId", oldLocId, locId);
    }

    public int getLocId() {
        return locId;
    }
}

Create DepartmentList.java file and add the below code. Create DataControl based on DepartmentList.java file.

public class DepartmentList {
    private static List s_departments = null;
    private Department editDepartment = new Department();

    private transient ProviderChangeSupport providerChangeSupport = new ProviderChangeSupport(this);

    public void addProviderChangeListener(ProviderChangeListener l) {
        providerChangeSupport.addProviderChangeListener(l);
    }

    public void removeProviderChangeListener(ProviderChangeListener l) {
        providerChangeSupport.removeProviderChangeListener(l);
    }

    public DepartmentList() {
        if (s_departments == null) {
            s_departments = new ArrayList();
            Execute();
        }
    }

    /**
     * Method will query the database and populate
     * the result list to s_departments
     */
    public void Execute() {
        Trace.log(Utility.ApplicationLogger, Level.INFO, DepartmentList.class, "Execute",
                  "Coming Inside Execute Method");
        try {
            Connection conn = DBConnectionFactory.getConnection();
            s_departments.clear();
            conn.setAutoCommit(false);
            PreparedStatement stat = conn.prepareStatement("SELECT * from DEPARTMENTS ORDER BY DEPARTMENT_NAME");
            ResultSet rs = stat.executeQuery();
            while (rs.next()) {
                int id = rs.getInt("DEPARTMENT_ID");
                String deptName = rs.getString("DEPARTMENT_NAME");
                int mgrId = rs.getInt("MANAGER_ID");
                int locId = rs.getInt("LOCATION_ID");
                Department d = new Department(id, deptName, mgrId, locId);
                s_departments.add(d);
            }
            rs.close();
            Trace.log(Utility.ApplicationLogger, Level.INFO, DepartmentList.class, "Execute",
                      "Exiting from Execute Method");
            //  providerChangeSupport.fireProviderRefresh("departments");
        } catch (SQLException e) {
            System.err.println(e.getMessage());
        } catch (Exception e) {
            System.err.println(e.getMessage());
        }
    }

    /**
     * Method will get count of departments in database
     * @return
     */
    public int getDepartmentCount() {
        return s_departments.size();
    }

    /**
     * Method will get the list of departments
     * @return
     */
    public Department[] getDepartments() {
        Department d[] = null;
        d = (Department[])s_departments.toArray(new Department[s_departments.size()]);
        return d;
    }

    /**
     * Method will create new deptartment object instance
     */
    public void AddDepartment() {
        Trace.log(Utility.ApplicationLogger, Level.INFO, DepartmentList.class, "AddDepartment",
                  "Coming inside AddDepartment");
        //Incrementing the intial deptId by 10
        int deptId = getDepartmentCount() + 10;
        setEditDepartment(new Department(deptId, "", 0, 0));
        Trace.log(Utility.ApplicationLogger, Level.INFO, DepartmentList.class, "AddDepartment",
                  "Exiting AddDepartment");
    }

    /**
     * Method will commit the details of newly created department object
     * @return
     */
    public boolean AddDepartmentToDB() {
        Trace.log(Utility.ApplicationLogger, Level.INFO, DepartmentList.class, "AddDepartmentToDB",
                  "Coming inside AddDepartmentToDB");
        boolean result = false;
        try {
            Connection conn = DBConnectionFactory.getConnection();
            conn.setAutoCommit(false);
            String insertSQL =
                "Insert into DEPARTMENTS (DEPARTMENT_ID,DEPARTMENT_NAME,MANAGER_ID,LOCATION_ID) values (?,?,?,?)";
            PreparedStatement pStmt = conn.prepareStatement(insertSQL);
            pStmt.setInt(1, editDepartment.getDeptId());
            pStmt.setString(2, editDepartment.getDeptName());
            pStmt.setInt(3, editDepartment.getMgrId());
            pStmt.setInt(4, editDepartment.getLocId());
            pStmt.execute();
            conn.commit();
            result = true;
        } catch (SQLException e) {
            System.err.println(e.getMessage());
        } catch (Exception e) {
            System.err.println(e.getMessage());
        }
        Trace.log(Utility.ApplicationLogger, Level.INFO, DepartmentList.class, "AddDepartment",
                  "Exiting AddDepartmentToDB");
        return result;
    }

    /**
     * Method will call the AddDepartmentToDB
     * Call PropertyChangeSupport listener to push data changes to the UI
     */
    public void saveDepartment() {
        Trace.log(Utility.ApplicationLogger, Level.INFO, DepartmentList.class, "saveDepartment",
                  "Coming inside saveDepartment");
        if (AddDepartmentToDB()) {
            Department newDepartment = new Department(editDepartment);
            s_departments.add(0, newDepartment);
            providerChangeSupport.fireProviderCreate("departments", newDepartment.getKey(), newDepartment);
        }
        Trace.log(Utility.ApplicationLogger, Level.INFO, DepartmentList.class, "saveDepartment",
                  "Exiting saveDepartment");
    }

    public void setEditDepartment(Department editDepartment) {
        this.editDepartment = editDepartment;
    }

    public Department getEditDepartment() {
        return editDepartment;
    }
}

Note:- Import Error might be showing in DepartmentList java, in viewController project properties->Dependencies add the ApplicationContoller.jpr

In ViewController project. Locate and expand the Application Sources folder, then expand the META-INF folder. You will see the adfmf-feature.xml file, click on the adfmf-feature.xml file to launch the Feature editor. Add a new feature by clicking the green plus sign on the Features table near top of the editor this will launch the new Create ADF Mobile Feature dialog, modify the values as shown below.

In the Features table, select the newly created feature Departments. Under the Features table, click the Content tab, and locate the Content table. Notice that the content item Departments.1 is created by default. Next add a new file by clicking the green plus sign and select taskflow option, this will launch the new Create ADF Mobile Task Flow dialog, modify the value as shown below.

Click on the DepartmentsTaskflow.xml to open the file in taskflow editor and follow the below steps.
1) Create views and name them as deptList and editDept respectively.
2) Draw the control flow case from deptList to editDept and Outcome as "add", Behavior->Transition as "flipRight".
3) Draw the control flow case from editDept to deptList and Outcome as "list", Behavior->Transition as "slideRight".

Double click on deptList view will launch Create ADF Mobile AMX Page dialog, in page facets select Header and Secondary Action. Open the deptList.amx page and go to page bindings, in Bindings section click on create control binding and select methodAction item. In create action binding wizard select DepartmentList->AddDepartment

Go to source tab and follow the below steps:
1) In Header facet, amx:outputText set the value as "Dept List"
2) In Seconday Action facet, for amx:commandButton modify the values
    text: Add, action: add, actionListener: #{bindings.AddDepartment.execute}
3) From DC palette drag and drop departments->ADF Mobile List View and select the default options

Double click on editDept view will launch Create ADF Mobile AMX Page dialog, in page facets select Header, Primary Action and Secondary Action. Open the deptList.amx page and go to page bindings, in Bindings section click on create control binding and select methodAction item. In create action binding wizard select DepartmentList->saveDepartment

Go to source tab and follow the below steps:
1) In Header facet, amx:outputText set the value as "Add Dept"
2) In Primary Action facet, for amx:commandButton modify the values
    text:Cancel, action:_back
3) In Seconday Action facet, for amx:commandButton modify the values
     text: Save, action: _back, actionListener: #{bindings.saveDepartment.execute}
4)  From DC palette drag and drop editDepartments->Form as ADF Mobile form, In Edit Form fields delete "key" value binding

Preview of the deptList.amx and editDept.amx will looks like below.

Now last configuration, in Application Resources palette expand Descriptor->ADF META-INF. You will see the adfmf-application.xml, click on the adfmf-application.xml file to launch the adfmf-application editor. In Application section for Lifecycle Event Listener set as "application.LifeCycleListenerImpl".

Make sure the below Libraries and Classpath present in the ViewController project.

In the Application menu, select Deploy - New Deployment Profile to start the Create Deployment Profile dialog box. In the Profile Type drop-down list, ensure ADF Mobile for Android/IOS is selected and then click OK.

In the ADF Mobile for Android Deployment Profile Properties dialog box, Select the Android Options node and confirm your values look like the ones below.

In the Application menu, select Deploy - New Deployment deployment profile. In the subsequent dialog box, select Deploy application to device/emulator/package, and click Finish.

Watch the Deployment Log window for any errors.

EJB DC - Deleting Multi-Selected Rows From Adf Table

Let us take a scenario where in users wants to delete multiple records in the ADF table. In EJB this can't be achieved in straight forward way, we have to manually get all the selected row keys and delete the rows data using EntityManager API.

You can download the sample workspace from here
[Runs with Oracle JDeveloper 11.1.2.3.0 + HR Schema]

You can also look at  how to achieve in this article link "Update multiple rows using EJB Data Control".

Implementation Steps

Create Fusion Web Application with entity based on Departments, then create a stateless session bean and add the below method. Expose the method to local/remote interface and generate data control.

Note:- Here in the below code "em" is a EntityManager.

/**
* Here param deptList will be having the selected row.
* Iterating through the deptList and find the depratments object instance by primary key
* Delete the data using entity manager api
* @param deptList
*/
public void deleteMultipleDeptRows(List deptList) {
	if (deptList.size() > 0) {
		Iterator iter = deptList.iterator();
		while (iter.hasNext()) {
			HashMap map = (HashMap)iter.next();
			//Finding the departments object instance
			Departments departments = em.find(Departments.class, map.get("departmentId"));
			em.remove(departments);
		}
	}
}

Create index.jspx page and drag and drop departmentsFindAll->Table as ADF Table. and create the backingBean as "IndexBean". Surround the table with panel collection, add the toolbar, drop button inside toolbar and name as "Delete Multiple Rows".

Bind the departments table to the backing bean as show below.

Create the ActionListener method called "deleteAction" for save button.

Open the IndexBean backing bean and add the below code.

public void deleteAction(ActionEvent actionEvent) {
	RowKeySet selectedDepts = getDeptTable().getSelectedRowKeys();
	Iterator selectedDeptIter = selectedDepts.iterator();
	DCBindingContainer bindings = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
	DCIteratorBinding deptIter = bindings.findIteratorBinding("departmentsFindAllIterator");
	RowSetIterator deptRSIter = deptIter.getRowSetIterator();
	List deptList = new ArrayList();
	while (selectedDeptIter.hasNext()) {
		Key key = (Key)((List)selectedDeptIter.next()).get(0);
		Row currentRow = deptRSIter.getRow(key);

		HashMap rowValues = new HashMap();
		rowValues.put("departmentId", currentRow.getAttribute("departmentId"));
		deptList.add(rowValues);
	}
	//Execute the deleteMultipleDeptRows method by passing deptList param
	OperationBinding oper = bindings.getOperationBinding("deleteMultipleDeptRows");
	oper.getParamsMap().put("deptList", deptList);
	oper.execute();
	deptIter.executeQuery();
	//Refresh the table
	AdfFacesContext.getCurrentInstance().addPartialTarget(this.getDeptTable());
}

Go to Bindings tab in index.jspx page and add deleteMultipleDeptRows method action.

Run the index.jspx page, select the multiple rows and clicking on "Delete Multiple Rows" button should delete the multiple records from the database.

Create ADF Input Form Without First Displaying Existing Records

You can create a form that allows a user to enter information for a new record and then commit that record into the data source. While you can choose to use the default ADF Form and then drop the Create operation as a command button, when this type of form is first rendered, it displays the data for the first instance in the collection.

The ADF Creation form allows users to create new instances in the collection without first displaying existing instances, this scenario might be very simple but the new developers find difficulty in creating empty ADF Input Form when page loads for the first time.

You can download the sample workspace from here.
[Runs with Oracle JDeveloper 11.1.2.2.0 + HR Schema]

Implementation Steps:-

Create Fusion web application with Business Components from Tables based on Department table. In view controller project create a jspx page then drag and drop DepartmentsView1->Form as ADF Form as shown in below image.

Go to page bindings, in Bindings section click on create control binding and select action item. In create action binding wizard select AppModuleDataControl->DepartmentsView1->Operation->createInsert.

In Executables section click in create executables Binding and select invokeAction item. In Insert invokeAction wizard and follow as shown in below image.

Edit the invokeCreateInsert and set the refresh to renderModel because when ever the page loaded this will execute the createInsert operation by inserting the empty record in the collection.

Run the jspx page and the web page will loaded with empty record.