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Mastering Oracle ADF Bindings

Euegene Fedorenko, profile picture
Euegene Fedorenko

The document discusses Oracle Application Development Framework (ADF) bindings. It provides an overview of ADF model layers and artifacts like the page definition file. It describes how bindings are used in the ADF lifecycle during processes like restoring the view and rendering the response. It also discusses accessing and executing bindings programmatically.

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Mastering Oracle ADF Bindings
About me 3
Ski Route 4
Let’s Go! 5
6 Bindings?
7 Application Layers
8 Layers Interaction
9 Fundamental Theorem of Software Engineering (FTSE) We  can  solve  any  problem  by   introducing  an  extra  level  of   indirec8on.     …except  for  the  problem  of  too  many   levels  of  indirec8on  
10 Model Layer
10 ADF Model
12 ADF Model
Why ADF Bindings? 12 •  A  core  part  of  Oracle  ADF   •  Powered  by  Oracle   •  Declara8ve  programming     approach   •  Common  UI  tasks  out-­‐of-­‐ the-­‐box                  –    Naviga8on                  –    Range  fetching                    –    State  Management   •  ADF  Bindings  API  
Ski Route 13
UI Component Binding 15  <af:inputText  value="#{bindings.FirstName.inputValue}"                                                        label="#{bindings.FirstName.hints.label}"                                                        required="#{bindings.FirstName.hints.mandatory}"                                                      …   EmpViewPageDef.xml  
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ADF Model Artifacts 17   ² PageDef.xml   ² Binding  metadata   ² DataBinding.cpx   ² Page  defini8on  map   ² Data  Controls     ² Adfm.xml   ² DataBinding.cpx,  DataControls.dcx,     ² bc4j.xcfg,  *.jpx   ² Web.xml   ² ADFBindingFilter   ² ADF  libraries  
Page Definition File 18        <executables>                  <iterator  DataControl="EmployeesAMDataControl”                                                    Binds="VEmployees"                                                      RangeSize="25"                                                      id="VEmployeesIterator"/>          </executables>          <bindings>                  <acributeValues  id="EmployeeId”                                                                                IterBinding="VEmployeesIterator”>                          <AcrNames>                                          <Item  Value="EmployeeId"/>                          </AcrNames>                  </acributeValues>                  <acributeValues  id="FirstName”                                        IterBinding="VEmployeesIterator”>                          <AcrNames>                                          <Item  Value="FirstName"/>                          </AcrNames>                  </acributeValues>                  …          </bindings>   <af:inputText  value="#{bindings.FirstName.inputValue}”                                                        label="#{bindings.FirstName.hints.label}"          
Page Definition File. Executables 19 ² Iterator  <iterator>   ² Method  Iterator  <methodIterator>   ² Variable  Iterator  <varaibleIterator>   ² Invoke  Ac8on  <invokeAc8on>   ² Page  <page>   ² Search  Region  <searchRegion>   ² Task  Flow  <taskFlow>   ² Mul8task  Flow  <mul8TaskFlow>  
Page Definition File. Bindings 20 ² Ac8on  bindings   ² Ac8on  <ac8on>   ² Method  ac8on  <methodAc8on>   ² Value  bindings   ² Current  Row     ² Acribute  value  <acributeValues>   ² Boolean  value  <bucon>   ² List  <list,  listOfValues>   ² Row  Set   ² Tree  <tree>   ² DVT  <graph>    
Ski Route 21
22 Binding Context vs Binding Container
23 JSF Lifecycle vs ADF Page Lifecycle
24 Bindings in ADF lifecycle. ADF Binding Filter
25 Bindings in ADF lifecycle. Restore View •  Restore  View   •  Apply  Request  Values   •  Process  valida8ons   •  Update  Model  Values     •  Invoke  Applica8on   •  Render  Response  
26 Bindings in ADF lifecycle. Restore View •  Restore  View              -­‐  Init  Context                  -­‐  Prepare  Model   •  …  
Binding Container at Prepare Model 27 ² Page  Parameters   ² Task  Flow  Parameters   ² Executables  with  Refresh=prepareModel   ² Iterators,  Invoke  Ac8ons       ² Page  Template     ² Task  Flow  bindings    
28 Bindings in ADF lifecycle. Render Response •  Restore  View   •  Apply  Request  Values   •  Process  valida8ons   •  Update  Model  Values     •  Invoke  Applica8on   •  Render  Response                    -­‐  Prepare  render  (render  Model)  
Iterator Refresh Attribute 29 ² default  (deferred)   ²  On  demand   ² always   ²  Prepare  Model,Update  Model,            Render  Model     ² ifNeeded       ²  Prepare  Model,  Render  Model   ² never     ² prepareModel   ² prepareModelifNeeded   ² renderModel   ² renderModelifNeeded   #{viewScope.reallyNeedToRefresh}  
Ski Route 30
Accessing Binding Container 31 public  BindingContainer  getBindingContainer()  {                  BindingContext  bindingContext  =  BindingContext.getCurrent();                  return  bindingContext.getCurrentBindingsEntry();   }   ²  Get Binding Context instance ²  Get Current Binding Container  
Executing Method Action 32 ²  Get Operation Binding from Binding Container ²  Set up parameters ²  Execute ²  Check for errors   public  void  raisePay(Integer  employeeId)  {                  BindingContainer  bindings  =  getBindings();                  Opera8onBinding  op  =  bindings.getOpera8onBinding("raisePay");                  op.getParamsMap().put("employeeId",  employeeId);                  Object  result  =  op.execute();                  if  (!op.getErrors().isEmpty())  {                          //Do  something  with  this  list  of  JboExcep8ons                          List  errorList  =  op.getErrors();                  }          }    <methodAc8on  Ac8on="invokeMethod”    MethodName="raisePay”  id="raisePay”        ...  
Accessing Attribute Binding 33  public  String  getEmailValue()  {                  BindingContainer  bindings  =  getBindings();                  AcributeBinding  emailBinding  =                            (AcributeBinding)  bindings.getControlBinding("Email");                  return  (String)  emailBinding.getInputValue();          }   ²  Get Binding Container ²  Find Attribute Binding by Id ²  Return Input Value     <bindings>          <acributeValues  IterBinding="VEmployeesIterator"  id="Email">                              <AcrNames>                                      <Item  Value="Email"/>                              </AcrNames>            </acributeValues>   …  
Accessing LOV Binding 34 ²  Get Binding Container ²  Find JUCtrlListBinding by Id ²  Get Selected Row ²  Return Attribute Value          public  String  getDepartmentName()  {                  BindingContainer  bindings  =  getBindings();                  JUCtrlListBinding  lov  =                            (JUCtrlListBinding)  bindings.getControlBinding("DepartmentId");                  //  Get  the  selected  row                  Row  selectedRow  =  (Row)  lov.getSelectedValue();                  return  (String)  selectedRow.getAcribute("DepartmentName");  }             <bindings>    <list  IterBinding="VEmployeesIterator"  Sta8cList="false"                      DTSupportsMRU="true"  SelectItemValueMode="ListObject"                    Uses="LOV_DepartmentId"  id="DepartmentId”/>   …  
Accessing Iterator Binding 35 ²  Get Binding Container as DCBindingContainer ²  Find DCIteratorBinding by Id ²  Execute VO query ²  Get Current Row (ViewRowImpl) ²  Get View Object Instance          public  void  workWithIterator()  {                  DCBindingContainer  bindings  =  (DCBindingContainer)  getBindings();                  DCIteratorBinding  iter  =  bindings.findIteratorBinding("VEmployeesIterator");                  //Execute  RowSet  query                  iter.executeQuery();                  //Get  current  row                    Row  r  =  iter.getCurrentRow();                  //Get  View  Object                  ViewObject  vo  =  iter.getViewObject();  }    <iterator  Binds="VEmployees"  RangeSize="25"                                        DataControl="EmployeesAMDataControl"  id="VEmployeesIterator"/>  
Ski Route 36
Composite ADF page 37
38 Composite ADF page ²  Everything  in  one  page   ²  Regions  with  task  flows   ²  Dynamic  declara8ve  component  
39 Composite ADF page ²  Everything  in  one  page   ²  Regions  with  task  flows   ²  Dynamic  declara8ve  component  
40 Composite ADF page ²  Everything  in  one  page   ²  Regions  with  task  flows   ²  Dynamic  declara@ve  component  
Dynamic Declarative Component 41 ²  Uses Binding Container of the parent page ²  Doesn’t have own Binding Container   …   <af:gridCell  ...>            <af:declara8veComponent  viewId="/fragments/Approvals.jsff"  id="dc1"/>   </af:gridCell>   ….   <ui:composi8on  xmlns:ui="hcp://java.sun.com/jsf/facelets"     ...    <af:componentDef  var="acrs"  componentVar="comp">                  <af:panelBox  text="Approvals"  id="pb1">                          <af:listView  value="#{bindings.Approvals.collec8onModel}"  var="item”                                                                      fetchSize="#{bindings.Approvals.rangeSize}"  id="lv1”>   …   MainPage.jsf   Approvals.jsff  
Bindings for Declarative Component 42 ²  Create Page Def file for the fragment ²  Add mapping to the DataBindings.cpx  <pageMap>                <page  path="/fragments/Approvals.jsff”  usageId="dashboard_view_ApprovalsPageDef"/>      </pageMap>      <pageDefini8onUsages>                  <page  id="dashboard_view_ApprovalsPageDef"                              path="com.adfprac8ce.dashboard.view.pageDefs.ApprovalsPageDef"/>      </pageDefini8onUsages>     <pageDefini8on  id="ApprovalsPageDef"                                  Package="com.adfprac8ce.dashboard.view.pageDefs">          <executables>                  <iterator  Binds="Approvals”  id="ApprovalsIterator”  …                  ...     DataBindings.cpx   ApprovalsPageDef.xml  
Bindings for Declarative Component 43 ²  Find or Create BC with findBindingContainerByPath ²  Refer to the Backing Bean property     public  class  ApprovalsBean  {          public  BindingContainer  getBindings()  {                  BindingContext  bc  =  BindingContext.getCurrent();                  return  bc.findBindingContainerByPath("/fragments/Approvals.jsff");          }   …   <ui:composi8on  xmlns:ui="hcp://java.sun.com/jsf/facelets"      <c:set  var="bindings"  value="#{backingBeanScope.ApprovalsBean.bindings}"/>    <af:componentDef  var="acrs"  componentVar="comp">                  <af:panelBox  text="Approvals"  id="pb1">                          <af:listView  value="#{bindings.Approvals.collec8onModel}"  var="item”                                                                      fetchSize="#{bindings.Approvals.rangeSize}"  id="lv1”>   …   ApprovalsBean.java   Approvals.jsff  
Ski Route 44
Bindings for Adaptive UI 45
Bindings for Dynamic Table 46  <executables>              <iterator  Binds="#{pageFlowScope.voName}"                                                DataControl=”DynamicDataModelServiceDataControl“                                                id=”VDynamicIterator"/>    </executables>    <bindings>            <tree  IterBinding="VDynamicIterator"  id="VDynamic">                  <nodeDefini8on  Name="VDynamic0"/>          </tree>    </bindings>     <af:table  rows="#{bindings.VDynamic.rangeSize}"                                    fetchSize="#{bindings.VDynamic.rangeSize}”                                      …  
Dynamic Table 47 <af:table  rows="#{bindings.VDynamic.rangeSize}"                                    fetchSize="#{bindings.VDynamic.rangeSize}"                                    emptyText="#{bindings.VDynamic.viewable  ?                                                                                    'No  data  to  display.'  :  'Access  Denied.'}"                                    var="row"  rowBandingInterval="0”  value="#{bindings.VDynamic.collec8onModel}"                                    selectedRowKeys="#{bindings.VDynamic.collec8onModel.selectedRow}"                                    selec8onListener="#{bindings.VDynamic.collec8onModel.makeCurrent}"                                    rowSelec8on="single"  id="t1">          <af:forEach  items="#{bindings.VDynamic.acributeDefs}”  var="def">                  <af:column  headerText="#{bindings.VDynamic.labels[def.name]}“                                                            sortable="true"  sortProperty="#{def.name}“  id="c2">                          <af:outputText  value="#{row[def.name]}"  id="ot2"/>                  </af:column>          </af:forEach>   </af:table>    
Bindings for Dynamic Form 48  <executables>              <iterator  Binds="#{pageFlowScope.voName}"                                                DataControl=”DynamicDataModelServiceDataControl“                                                id=”VDynamicIterator"/>    </executables>                                                                        <dynamic:form  value="#{bindings.VDynamicIterator}"  id="f1"/>  
Dynamic Component (12c) 49     <af:iterator  id="i1"  value="#{bindings.VDynamic.acributesModel.acributes}"  var="acr">                  <af:dynamicComponent  id="d2"  acributeModel="#{acr}"                                                                                                          value="#{bindings[acr.containerName][acr.name].inputValue}"/>    </af:iterator>                                                                                                                                          <tree  IterBinding=”VDynamicIterator"  id="VDynamic">                                                                                                                                                              <nodeDefini8on  Name="VDynamic0"/>                                                                                                                                          </tree>  
Hand Made Dynamic Form 50 ²  DynamicComponent has limitations ²  af:Iterator + af:switcher approach can be used      <af:iterator  value=”#{bindings.VDynamic.acributesModel.acributes}"  var="acr"  id="dc_i1">                              <af:switcher  id="dc_s1"  defaultFacet="Default"                                                                            facetName=”#{bindings[acr.containerName][acr.name].dynamicTypeID}”>                                  <f:facet  name="DATE">                                      <af:inputDate  id="dc_id1"                                                                                          label=”#{bindings[acr.containerName][acr.name].label}”                                                                                                                                                  value=”#{bindings[acr.containerName][acr.name].inputValue}”                                                                                                                          shortDesc="#{bindings[acr.containerName][acr.name].tool8p}”                                                                                          />                                  </f:facet>                                <f:facet  name=”INT”>                                  …    <tree  IterBinding="VDynamicterator"  id="VDynamic">                  <nodeDefini8on  Name="VDynamic0"/>    </tree>    
Ski Route 51
Dynamic Bindings. Why? 52 ²  DynamicForm is straight forward ²  DynamicForm is not good for Facelets ²  Jdeveloper 12c is still new ²  DynamicComponent has limitations ²  Tree bindings might be expensive ²  Useful for declarative components ²  It’s fun! ²  Have to finish the route  <tree  IterBinding="VDynamicterator"                            id="VDynamic">                  <nodeDefini8on  Name="VDynamic0"/>    </tree>    
Creating Value Binding 53 ²  Get Control Definition Factory Defini8onFactory  defFactory  =  JUMetaObjectManager.getJUMom().getControlDefFactory();   ²  Create an instance of Control Value Definition (JUCtrlAcrsDef,  JUCtrlBoolDef,  …)              JUCtrlValueDef  acrDef  =  (JUCtrlValueDef)  defFactory.createControlDef(BINDING_TYPE);     ²  Initialize Control Value Definition HashMap  initValues  =  new  HashMap();              initValues.put(PARAM_NAME,  PARAM_VALUE);              acrDef.init(initValues);     ²  Create an instance of Control Value Binding JUCtrlValueBinding  acr  =  (JUCtrlValueBinding)    acrDef.createControlBinding(getBindings());   ²  Add Control Value Binding to Binding Container  getBindings().addControlBinding(acr.getName(),  acr);  
Dynamic Attribute Value Binding 54 private  JUCtrlAcrsBinding  createAcrValue(String  acrName,  String  iteratorName)  {      Defini8onFactory  defFactory  =    JUMetaObjectManager.getJUMom().getControlDefFactory();      JUCtrlAcrsDef  acrDef  =  (JUCtrlAcrsDef)  defFactory.createControlDef(DCDefBase.PNAME_TextField);          //Ini8alize  acribute  values  binding  defini8on      HashMap  initValues  =  new  HashMap();      initValues.put(DCControlBindingDef.PNAME_IterBinding,  iteratorName);      initValues.put(ListBindingDef.PNAME_AcrNames,  new  String[]  {acrName});      initValues.put(JUTags.ID,  acrName);      acrDef.init(initValues);                //Create  an  instance  of  acribute  values  binding      JUCtrlAcrsBinding  acr  =  (JUCtrlAcrsBinding)    acrDef.createControlBinding(getBindings());            //Add  the  instance  to  the  current  binding  container      getBindings().addControlBinding(acrDef.getName(),  acr);      return  acr;    }    
Dynamic Attribute Value Binding 55  <af:inputText  value="#{BackingBean.accountNo.inputValue}”                                                      label="#{BackingBean.accountNo.hints.label}”                                                      required="#{BackingBean.accountNo.hints.mandatory}”                                                      …   public  JUCtrlAcrsBinding  getAccountNo()  {                  String  acrName  =  "AccountNo";          DCControlBinding  acr  =                          getBindings().findCtrlBinding(acrName);            if  (acr  ==  null)  {                  acr  =  createAcrValue(acrName,  "VDynamicIterator");            }              return  (JUCtrlAcrsBinding)  acr;   }    <acributeValues                          IterBinding="VDynamicIterator”                          id="AccountNo">                    <AcrNames>                                <Item  Value="AccountNo"/>                    </AcrNames>        </acributeValues>   #{bindings.AccountNo}  
Dynamic Boolean (button) Value Binding 56 private  JUCtrlBoolBinding  createBoolValue(String  acrName,  String  iteratorName)  {      Defini8onFactory  defFactory  =    JUMetaObjectManager.getJUMom().getControlDefFactory();      JUCtrlBoolDef  acrDef  =  (JUCtrlBoolDef)  defFactory.createControlDef(DCDefBase.PNAME_BuIon);        HashMap  initValues  =  new  HashMap();      initValues.put(DCControlBindingDef.PNAME_IterBinding,  iteratorName);      initValues.put(ListBindingDef.PNAME_AcrNames,  new  String[]  {acrName});      initValues.put(ListBindingDef.PNAME_ValueList,  new  String[]  {"Y","N"});      …      return  acr;   }        <bucon  IterBinding="VDynamicIterator"  id="AccountClosed"  DTSupportsMRU="false"  Sta8cList="true">              <AcrNames>                          <Item  Value="AccountClosed"/>              </AcrNames>              <ValueList>      <Item  Value="Y"/>                  <Item  Value="N"/>    </ValueList>    </bucon>  
Dynamic LOV Binding 57 private  JUCtrlListBinding  createLOV(String  acrName,  String  lovName,  String  iteratorName)  {      Defini8onFactory  defFactory  =  JUMetaObjectManager.getJUMom().getControlDefFactory();      JUCtrlValueDef  lovDef  =  (JUCtrlValueDef)  defFactory.createControlDef(JUTags.PNAME_listOfValues);          HashMap  initValues  =  new  HashMap();      initValues.put(DCControlBindingDef.PNAME_IterBinding,  iteratorName);      initValues.put(ListBindingDef.PNAME_AcrNames,  new  String[]  {acrName});    //Specify  LOV  name.  e.g.  “LOV_Currency”      initValues.put(ListBindingDef.PNAME_ListServerBindingName,  lovName);                      initValues.put(JUTags.ID,  acrName);      lovDef.init(initValues);        JUCtrlListBinding  lov  =  (JUCtrlListBinding)  lovDef.createControlBinding(getBindings());      getBindings().addControlBinding(lovDef.getName(),  lov);      return  lov;   }           <listOfValues  Sta8cList="false"  IterBinding="VDynamicIterator"  Uses="LOV_Currency"  id="Currency"/>  
Dynamic Tree Binding 58  public  JUCtrlHierBinding  createTree(String  treeName,  String  iteratorName)  {                      Defini8onFactory  defFactory  =  JUMetaObjectManager.getJUMom().getControlDefFactory();                  JUCtrlValueDef  treeDef  =  (JUCtrlValueDef)  defFactory.createControlDef(DCDefBase.PNAME_Tree);                    HashMap  initValues  =  new  HashMap();                      initValues.put(JUTags.ID,  treeName);                  initValues.put(JUCtrlHierDef.PNAME_IterBinding,  iteratorName);                                JUCtrlHierTypeBinding  typeBinding  =  new  JUCtrlHierTypeBinding();                      initValues.put(JUCtrlHierDef.PNAME_TypeBindings,  new  JUCtrlHierTypeBinding[]  {  typeBinding  });                        treeDef.init(initValues);                    JUCtrlValueBinding  tree  =  (JUCtrlValueBinding)treeDef.createControlBinding(getBindings());                                  getBindings().addControlBinding(treeDef.getName(),  tree);                  return  (JUCtrlHierBinding)  tree;          }    <tree  IterBinding="VDynamicterator"                            id="VDynamic">                  <nodeDefini8on  Name="VDynamic0"/>    </tree>    
Dynamic Value Binding 59  private  JUCtrlValueBinding  createBinding(BindingDef  bindingDef)  {              Defini8onFactory  defFactory  =                        JUMetaObjectManager.getJUMom().getControlDefFactory();              JUCtrlValueDef  valueDef  =                        (JUCtrlValueDef)  defFactory.createControlDef(bindingDef.getBindingType());                              HashMap  initValues  =  bindingDef.getInitMap();                          valueDef.init(initValues);                                JUCtrlValueBinding  binding  =  (JUCtrlValueBinding)  valueDef.createControlBinding(getBindings());                            getBindings().addControlBinding(valueDef.getName(),  binding);              return  binding;          }  
Dynamic Value Binding 60  private  class  BooleanBindingDef  extends  BindingDef  {                    @Override                  public  HashMap  getInitMap()  {                                  HashMap  map  =  new  HashMap();                                  map.put(DCControlBindingDef.PNAME_IterBinding,  iteratorName);                                  map.put(ListBindingDef.PNAME_AcrNames,  new  String[]  {acrName});                                  map.put(ListBindingDef.PNAME_ValueList,  new  String[]  {"Y","N"});                                  map.put(JUTags.ID,  acrName);                                  return  map;                                                  }                    @Override                  public  String  getBindingType()  {                                  return  DCDefBase.PNAME_Bucon;                          }            }  
Dynamic Iterator Binding 61  public  DCIteratorBinding  createIterator(String  iteratorName,  String  voName,  String  dataControlName)  {                        Defini8onFactory  defFactory  =  JUMetaObjectManager.getJUMom().getControlDefFactory();        //Create  and  init  an  iterator  binding  defini8on            JUIteratorDef  iterDef  =  (JUIteratorDef)defFactory.createControlDef(DCDefBase.PNAME_Iterator);                                HashMap  initValues  =  new  HashMap();            initValues.put(JUTags.ID,  iteratorName);        initValues.put(JUTags.DataControl  ,  dataControlName);            initValues.put(JUTags.PNAME_VOName  ,  voName);            iterDef.init(initValues);                          //Create  an  iterator  binding  instance              DCIteratorBinding  iter  =  iterDef.createIterBinding(BindingContext.getCurrent(),  getBindings());                                          //Add  the  instance  to  the  current  binding  container              getBindings().addIteratorBinding(iteratorName,  iter);            return  iter;    }      <iterator  Binds="VEmployees"                                DataControl="AppModuleDataControl"                                id=“VDynamiciterator"/>  
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Mastering Oracle ADF Bindings

  • 9. 9 Fundamental Theorem of Software Engineering (FTSE) We  can  solve  any  problem  by   introducing  an  extra  level  of   indirec8on.     …except  for  the  problem  of  too  many   levels  of  indirec8on  
  • 13. Why ADF Bindings? 12 •  A  core  part  of  Oracle  ADF   •  Powered  by  Oracle   •  Declara8ve  programming     approach   •  Common  UI  tasks  out-­‐of-­‐ the-­‐box                  –    Naviga8on                  –    Range  fetching                    –    State  Management   •  ADF  Bindings  API  
  • 15. UI Component Binding 15  <af:inputText  value="#{bindings.FirstName.inputValue}"                                                        label="#{bindings.FirstName.hints.label}"                                                        required="#{bindings.FirstName.hints.mandatory}"                                                      …   EmpViewPageDef.xml  
  • 16. 16
  • 17. ADF Model Artifacts 17   ² PageDef.xml   ² Binding  metadata   ² DataBinding.cpx   ² Page  defini8on  map   ² Data  Controls     ² Adfm.xml   ² DataBinding.cpx,  DataControls.dcx,     ² bc4j.xcfg,  *.jpx   ² Web.xml   ² ADFBindingFilter   ² ADF  libraries  
  • 18. Page Definition File 18        <executables>                  <iterator  DataControl="EmployeesAMDataControl”                                                    Binds="VEmployees"                                                      RangeSize="25"                                                      id="VEmployeesIterator"/>          </executables>          <bindings>                  <acributeValues  id="EmployeeId”                                                                                IterBinding="VEmployeesIterator”>                          <AcrNames>                                          <Item  Value="EmployeeId"/>                          </AcrNames>                  </acributeValues>                  <acributeValues  id="FirstName”                                        IterBinding="VEmployeesIterator”>                          <AcrNames>                                          <Item  Value="FirstName"/>                          </AcrNames>                  </acributeValues>                  …          </bindings>   <af:inputText  value="#{bindings.FirstName.inputValue}”                                                        label="#{bindings.FirstName.hints.label}"          
  • 19. Page Definition File. Executables 19 ² Iterator  <iterator>   ² Method  Iterator  <methodIterator>   ² Variable  Iterator  <varaibleIterator>   ² Invoke  Ac8on  <invokeAc8on>   ² Page  <page>   ² Search  Region  <searchRegion>   ² Task  Flow  <taskFlow>   ² Mul8task  Flow  <mul8TaskFlow>  
  • 20. Page Definition File. Bindings 20 ² Ac8on  bindings   ² Ac8on  <ac8on>   ² Method  ac8on  <methodAc8on>   ² Value  bindings   ² Current  Row     ² Acribute  value  <acributeValues>   ² Boolean  value  <bucon>   ² List  <list,  listOfValues>   ² Row  Set   ² Tree  <tree>   ² DVT  <graph>    
  • 22. 22 Binding Context vs Binding Container
  • 23. 23 JSF Lifecycle vs ADF Page Lifecycle
  • 24. 24 Bindings in ADF lifecycle. ADF Binding Filter
  • 25. 25 Bindings in ADF lifecycle. Restore View •  Restore  View   •  Apply  Request  Values   •  Process  valida8ons   •  Update  Model  Values     •  Invoke  Applica8on   •  Render  Response  
  • 26. 26 Bindings in ADF lifecycle. Restore View •  Restore  View              -­‐  Init  Context                  -­‐  Prepare  Model   •  …  
  • 27. Binding Container at Prepare Model 27 ² Page  Parameters   ² Task  Flow  Parameters   ² Executables  with  Refresh=prepareModel   ² Iterators,  Invoke  Ac8ons       ² Page  Template     ² Task  Flow  bindings    
  • 28. 28 Bindings in ADF lifecycle. Render Response •  Restore  View   •  Apply  Request  Values   •  Process  valida8ons   •  Update  Model  Values     •  Invoke  Applica8on   •  Render  Response                    -­‐  Prepare  render  (render  Model)  
  • 29. Iterator Refresh Attribute 29 ² default  (deferred)   ²  On  demand   ² always   ²  Prepare  Model,Update  Model,            Render  Model     ² ifNeeded       ²  Prepare  Model,  Render  Model   ² never     ² prepareModel   ² prepareModelifNeeded   ² renderModel   ² renderModelifNeeded   #{viewScope.reallyNeedToRefresh}  
  • 31. Accessing Binding Container 31 public  BindingContainer  getBindingContainer()  {                  BindingContext  bindingContext  =  BindingContext.getCurrent();                  return  bindingContext.getCurrentBindingsEntry();   }   ²  Get Binding Context instance ²  Get Current Binding Container  
  • 32. Executing Method Action 32 ²  Get Operation Binding from Binding Container ²  Set up parameters ²  Execute ²  Check for errors   public  void  raisePay(Integer  employeeId)  {                  BindingContainer  bindings  =  getBindings();                  Opera8onBinding  op  =  bindings.getOpera8onBinding("raisePay");                  op.getParamsMap().put("employeeId",  employeeId);                  Object  result  =  op.execute();                  if  (!op.getErrors().isEmpty())  {                          //Do  something  with  this  list  of  JboExcep8ons                          List  errorList  =  op.getErrors();                  }          }    <methodAc8on  Ac8on="invokeMethod”    MethodName="raisePay”  id="raisePay”        ...  
  • 33. Accessing Attribute Binding 33  public  String  getEmailValue()  {                  BindingContainer  bindings  =  getBindings();                  AcributeBinding  emailBinding  =                            (AcributeBinding)  bindings.getControlBinding("Email");                  return  (String)  emailBinding.getInputValue();          }   ²  Get Binding Container ²  Find Attribute Binding by Id ²  Return Input Value     <bindings>          <acributeValues  IterBinding="VEmployeesIterator"  id="Email">                              <AcrNames>                                      <Item  Value="Email"/>                              </AcrNames>            </acributeValues>   …  
  • 34. Accessing LOV Binding 34 ²  Get Binding Container ²  Find JUCtrlListBinding by Id ²  Get Selected Row ²  Return Attribute Value          public  String  getDepartmentName()  {                  BindingContainer  bindings  =  getBindings();                  JUCtrlListBinding  lov  =                            (JUCtrlListBinding)  bindings.getControlBinding("DepartmentId");                  //  Get  the  selected  row                  Row  selectedRow  =  (Row)  lov.getSelectedValue();                  return  (String)  selectedRow.getAcribute("DepartmentName");  }             <bindings>    <list  IterBinding="VEmployeesIterator"  Sta8cList="false"                      DTSupportsMRU="true"  SelectItemValueMode="ListObject"                    Uses="LOV_DepartmentId"  id="DepartmentId”/>   …  
  • 35. Accessing Iterator Binding 35 ²  Get Binding Container as DCBindingContainer ²  Find DCIteratorBinding by Id ²  Execute VO query ²  Get Current Row (ViewRowImpl) ²  Get View Object Instance          public  void  workWithIterator()  {                  DCBindingContainer  bindings  =  (DCBindingContainer)  getBindings();                  DCIteratorBinding  iter  =  bindings.findIteratorBinding("VEmployeesIterator");                  //Execute  RowSet  query                  iter.executeQuery();                  //Get  current  row                    Row  r  =  iter.getCurrentRow();                  //Get  View  Object                  ViewObject  vo  =  iter.getViewObject();  }    <iterator  Binds="VEmployees"  RangeSize="25"                                        DataControl="EmployeesAMDataControl"  id="VEmployeesIterator"/>  
  • 38. 38 Composite ADF page ²  Everything  in  one  page   ²  Regions  with  task  flows   ²  Dynamic  declara8ve  component  
  • 39. 39 Composite ADF page ²  Everything  in  one  page   ²  Regions  with  task  flows   ²  Dynamic  declara8ve  component  
  • 40. 40 Composite ADF page ²  Everything  in  one  page   ²  Regions  with  task  flows   ²  Dynamic  declara@ve  component  
  • 41. Dynamic Declarative Component 41 ²  Uses Binding Container of the parent page ²  Doesn’t have own Binding Container   …   <af:gridCell  ...>            <af:declara8veComponent  viewId="/fragments/Approvals.jsff"  id="dc1"/>   </af:gridCell>   ….   <ui:composi8on  xmlns:ui="hcp://java.sun.com/jsf/facelets"     ...    <af:componentDef  var="acrs"  componentVar="comp">                  <af:panelBox  text="Approvals"  id="pb1">                          <af:listView  value="#{bindings.Approvals.collec8onModel}"  var="item”                                                                      fetchSize="#{bindings.Approvals.rangeSize}"  id="lv1”>   …   MainPage.jsf   Approvals.jsff  
  • 42. Bindings for Declarative Component 42 ²  Create Page Def file for the fragment ²  Add mapping to the DataBindings.cpx  <pageMap>                <page  path="/fragments/Approvals.jsff”  usageId="dashboard_view_ApprovalsPageDef"/>      </pageMap>      <pageDefini8onUsages>                  <page  id="dashboard_view_ApprovalsPageDef"                              path="com.adfprac8ce.dashboard.view.pageDefs.ApprovalsPageDef"/>      </pageDefini8onUsages>     <pageDefini8on  id="ApprovalsPageDef"                                  Package="com.adfprac8ce.dashboard.view.pageDefs">          <executables>                  <iterator  Binds="Approvals”  id="ApprovalsIterator”  …                  ...     DataBindings.cpx   ApprovalsPageDef.xml  
  • 43. Bindings for Declarative Component 43 ²  Find or Create BC with findBindingContainerByPath ²  Refer to the Backing Bean property     public  class  ApprovalsBean  {          public  BindingContainer  getBindings()  {                  BindingContext  bc  =  BindingContext.getCurrent();                  return  bc.findBindingContainerByPath("/fragments/Approvals.jsff");          }   …   <ui:composi8on  xmlns:ui="hcp://java.sun.com/jsf/facelets"      <c:set  var="bindings"  value="#{backingBeanScope.ApprovalsBean.bindings}"/>    <af:componentDef  var="acrs"  componentVar="comp">                  <af:panelBox  text="Approvals"  id="pb1">                          <af:listView  value="#{bindings.Approvals.collec8onModel}"  var="item”                                                                      fetchSize="#{bindings.Approvals.rangeSize}"  id="lv1”>   …   ApprovalsBean.java   Approvals.jsff  
  • 46. Bindings for Dynamic Table 46  <executables>              <iterator  Binds="#{pageFlowScope.voName}"                                                DataControl=”DynamicDataModelServiceDataControl“                                                id=”VDynamicIterator"/>    </executables>    <bindings>            <tree  IterBinding="VDynamicIterator"  id="VDynamic">                  <nodeDefini8on  Name="VDynamic0"/>          </tree>    </bindings>     <af:table  rows="#{bindings.VDynamic.rangeSize}"                                    fetchSize="#{bindings.VDynamic.rangeSize}”                                      …  
  • 47. Dynamic Table 47 <af:table  rows="#{bindings.VDynamic.rangeSize}"                                    fetchSize="#{bindings.VDynamic.rangeSize}"                                    emptyText="#{bindings.VDynamic.viewable  ?                                                                                    'No  data  to  display.'  :  'Access  Denied.'}"                                    var="row"  rowBandingInterval="0”  value="#{bindings.VDynamic.collec8onModel}"                                    selectedRowKeys="#{bindings.VDynamic.collec8onModel.selectedRow}"                                    selec8onListener="#{bindings.VDynamic.collec8onModel.makeCurrent}"                                    rowSelec8on="single"  id="t1">          <af:forEach  items="#{bindings.VDynamic.acributeDefs}”  var="def">                  <af:column  headerText="#{bindings.VDynamic.labels[def.name]}“                                                            sortable="true"  sortProperty="#{def.name}“  id="c2">                          <af:outputText  value="#{row[def.name]}"  id="ot2"/>                  </af:column>          </af:forEach>   </af:table>    
  • 48. Bindings for Dynamic Form 48  <executables>              <iterator  Binds="#{pageFlowScope.voName}"                                                DataControl=”DynamicDataModelServiceDataControl“                                                id=”VDynamicIterator"/>    </executables>                                                                        <dynamic:form  value="#{bindings.VDynamicIterator}"  id="f1"/>  
  • 49. Dynamic Component (12c) 49     <af:iterator  id="i1"  value="#{bindings.VDynamic.acributesModel.acributes}"  var="acr">                  <af:dynamicComponent  id="d2"  acributeModel="#{acr}"                                                                                                          value="#{bindings[acr.containerName][acr.name].inputValue}"/>    </af:iterator>                                                                                                                                          <tree  IterBinding=”VDynamicIterator"  id="VDynamic">                                                                                                                                                              <nodeDefini8on  Name="VDynamic0"/>                                                                                                                                          </tree>  
  • 50. Hand Made Dynamic Form 50 ²  DynamicComponent has limitations ²  af:Iterator + af:switcher approach can be used      <af:iterator  value=”#{bindings.VDynamic.acributesModel.acributes}"  var="acr"  id="dc_i1">                              <af:switcher  id="dc_s1"  defaultFacet="Default"                                                                            facetName=”#{bindings[acr.containerName][acr.name].dynamicTypeID}”>                                  <f:facet  name="DATE">                                      <af:inputDate  id="dc_id1"                                                                                          label=”#{bindings[acr.containerName][acr.name].label}”                                                                                                                                                  value=”#{bindings[acr.containerName][acr.name].inputValue}”                                                                                                                          shortDesc="#{bindings[acr.containerName][acr.name].tool8p}”                                                                                          />                                  </f:facet>                                <f:facet  name=”INT”>                                  …    <tree  IterBinding="VDynamicterator"  id="VDynamic">                  <nodeDefini8on  Name="VDynamic0"/>    </tree>    
  • 52. Dynamic Bindings. Why? 52 ²  DynamicForm is straight forward ²  DynamicForm is not good for Facelets ²  Jdeveloper 12c is still new ²  DynamicComponent has limitations ²  Tree bindings might be expensive ²  Useful for declarative components ²  It’s fun! ²  Have to finish the route  <tree  IterBinding="VDynamicterator"                            id="VDynamic">                  <nodeDefini8on  Name="VDynamic0"/>    </tree>    
  • 53. Creating Value Binding 53 ²  Get Control Definition Factory Defini8onFactory  defFactory  =  JUMetaObjectManager.getJUMom().getControlDefFactory();   ²  Create an instance of Control Value Definition (JUCtrlAcrsDef,  JUCtrlBoolDef,  …)              JUCtrlValueDef  acrDef  =  (JUCtrlValueDef)  defFactory.createControlDef(BINDING_TYPE);     ²  Initialize Control Value Definition HashMap  initValues  =  new  HashMap();              initValues.put(PARAM_NAME,  PARAM_VALUE);              acrDef.init(initValues);     ²  Create an instance of Control Value Binding JUCtrlValueBinding  acr  =  (JUCtrlValueBinding)    acrDef.createControlBinding(getBindings());   ²  Add Control Value Binding to Binding Container  getBindings().addControlBinding(acr.getName(),  acr);  
  • 54. Dynamic Attribute Value Binding 54 private  JUCtrlAcrsBinding  createAcrValue(String  acrName,  String  iteratorName)  {      Defini8onFactory  defFactory  =    JUMetaObjectManager.getJUMom().getControlDefFactory();      JUCtrlAcrsDef  acrDef  =  (JUCtrlAcrsDef)  defFactory.createControlDef(DCDefBase.PNAME_TextField);          //Ini8alize  acribute  values  binding  defini8on      HashMap  initValues  =  new  HashMap();      initValues.put(DCControlBindingDef.PNAME_IterBinding,  iteratorName);      initValues.put(ListBindingDef.PNAME_AcrNames,  new  String[]  {acrName});      initValues.put(JUTags.ID,  acrName);      acrDef.init(initValues);                //Create  an  instance  of  acribute  values  binding      JUCtrlAcrsBinding  acr  =  (JUCtrlAcrsBinding)    acrDef.createControlBinding(getBindings());            //Add  the  instance  to  the  current  binding  container      getBindings().addControlBinding(acrDef.getName(),  acr);      return  acr;    }    
  • 55. Dynamic Attribute Value Binding 55  <af:inputText  value="#{BackingBean.accountNo.inputValue}”                                                      label="#{BackingBean.accountNo.hints.label}”                                                      required="#{BackingBean.accountNo.hints.mandatory}”                                                      …   public  JUCtrlAcrsBinding  getAccountNo()  {                  String  acrName  =  "AccountNo";          DCControlBinding  acr  =                          getBindings().findCtrlBinding(acrName);            if  (acr  ==  null)  {                  acr  =  createAcrValue(acrName,  "VDynamicIterator");            }              return  (JUCtrlAcrsBinding)  acr;   }    <acributeValues                          IterBinding="VDynamicIterator”                          id="AccountNo">                    <AcrNames>                                <Item  Value="AccountNo"/>                    </AcrNames>        </acributeValues>   #{bindings.AccountNo}  
  • 56. Dynamic Boolean (button) Value Binding 56 private  JUCtrlBoolBinding  createBoolValue(String  acrName,  String  iteratorName)  {      Defini8onFactory  defFactory  =    JUMetaObjectManager.getJUMom().getControlDefFactory();      JUCtrlBoolDef  acrDef  =  (JUCtrlBoolDef)  defFactory.createControlDef(DCDefBase.PNAME_BuIon);        HashMap  initValues  =  new  HashMap();      initValues.put(DCControlBindingDef.PNAME_IterBinding,  iteratorName);      initValues.put(ListBindingDef.PNAME_AcrNames,  new  String[]  {acrName});      initValues.put(ListBindingDef.PNAME_ValueList,  new  String[]  {"Y","N"});      …      return  acr;   }        <bucon  IterBinding="VDynamicIterator"  id="AccountClosed"  DTSupportsMRU="false"  Sta8cList="true">              <AcrNames>                          <Item  Value="AccountClosed"/>              </AcrNames>              <ValueList>      <Item  Value="Y"/>                  <Item  Value="N"/>    </ValueList>    </bucon>  
  • 57. Dynamic LOV Binding 57 private  JUCtrlListBinding  createLOV(String  acrName,  String  lovName,  String  iteratorName)  {      Defini8onFactory  defFactory  =  JUMetaObjectManager.getJUMom().getControlDefFactory();      JUCtrlValueDef  lovDef  =  (JUCtrlValueDef)  defFactory.createControlDef(JUTags.PNAME_listOfValues);          HashMap  initValues  =  new  HashMap();      initValues.put(DCControlBindingDef.PNAME_IterBinding,  iteratorName);      initValues.put(ListBindingDef.PNAME_AcrNames,  new  String[]  {acrName});    //Specify  LOV  name.  e.g.  “LOV_Currency”      initValues.put(ListBindingDef.PNAME_ListServerBindingName,  lovName);                      initValues.put(JUTags.ID,  acrName);      lovDef.init(initValues);        JUCtrlListBinding  lov  =  (JUCtrlListBinding)  lovDef.createControlBinding(getBindings());      getBindings().addControlBinding(lovDef.getName(),  lov);      return  lov;   }           <listOfValues  Sta8cList="false"  IterBinding="VDynamicIterator"  Uses="LOV_Currency"  id="Currency"/>  
  • 58. Dynamic Tree Binding 58  public  JUCtrlHierBinding  createTree(String  treeName,  String  iteratorName)  {                      Defini8onFactory  defFactory  =  JUMetaObjectManager.getJUMom().getControlDefFactory();                  JUCtrlValueDef  treeDef  =  (JUCtrlValueDef)  defFactory.createControlDef(DCDefBase.PNAME_Tree);                    HashMap  initValues  =  new  HashMap();                      initValues.put(JUTags.ID,  treeName);                  initValues.put(JUCtrlHierDef.PNAME_IterBinding,  iteratorName);                                JUCtrlHierTypeBinding  typeBinding  =  new  JUCtrlHierTypeBinding();                      initValues.put(JUCtrlHierDef.PNAME_TypeBindings,  new  JUCtrlHierTypeBinding[]  {  typeBinding  });                        treeDef.init(initValues);                    JUCtrlValueBinding  tree  =  (JUCtrlValueBinding)treeDef.createControlBinding(getBindings());                                  getBindings().addControlBinding(treeDef.getName(),  tree);                  return  (JUCtrlHierBinding)  tree;          }    <tree  IterBinding="VDynamicterator"                            id="VDynamic">                  <nodeDefini8on  Name="VDynamic0"/>    </tree>    
  • 59. Dynamic Value Binding 59  private  JUCtrlValueBinding  createBinding(BindingDef  bindingDef)  {              Defini8onFactory  defFactory  =                        JUMetaObjectManager.getJUMom().getControlDefFactory();              JUCtrlValueDef  valueDef  =                        (JUCtrlValueDef)  defFactory.createControlDef(bindingDef.getBindingType());                              HashMap  initValues  =  bindingDef.getInitMap();                          valueDef.init(initValues);                                JUCtrlValueBinding  binding  =  (JUCtrlValueBinding)  valueDef.createControlBinding(getBindings());                            getBindings().addControlBinding(valueDef.getName(),  binding);              return  binding;          }  
  • 60. Dynamic Value Binding 60  private  class  BooleanBindingDef  extends  BindingDef  {                    @Override                  public  HashMap  getInitMap()  {                                  HashMap  map  =  new  HashMap();                                  map.put(DCControlBindingDef.PNAME_IterBinding,  iteratorName);                                  map.put(ListBindingDef.PNAME_AcrNames,  new  String[]  {acrName});                                  map.put(ListBindingDef.PNAME_ValueList,  new  String[]  {"Y","N"});                                  map.put(JUTags.ID,  acrName);                                  return  map;                                                  }                    @Override                  public  String  getBindingType()  {                                  return  DCDefBase.PNAME_Bucon;                          }            }  
  • 61. Dynamic Iterator Binding 61  public  DCIteratorBinding  createIterator(String  iteratorName,  String  voName,  String  dataControlName)  {                        Defini8onFactory  defFactory  =  JUMetaObjectManager.getJUMom().getControlDefFactory();        //Create  and  init  an  iterator  binding  defini8on            JUIteratorDef  iterDef  =  (JUIteratorDef)defFactory.createControlDef(DCDefBase.PNAME_Iterator);                                HashMap  initValues  =  new  HashMap();            initValues.put(JUTags.ID,  iteratorName);        initValues.put(JUTags.DataControl  ,  dataControlName);            initValues.put(JUTags.PNAME_VOName  ,  voName);            iterDef.init(initValues);                          //Create  an  iterator  binding  instance              DCIteratorBinding  iter  =  iterDef.createIterBinding(BindingContext.getCurrent(),  getBindings());                                          //Add  the  instance  to  the  current  binding  container              getBindings().addIteratorBinding(iteratorName,  iter);            return  iter;    }      <iterator  Binds="VEmployees"                                DataControl="AppModuleDataControl"                                id=“VDynamiciterator"/>  
  • 63. 63