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Showing posts with label po. Show all posts
Showing posts with label po. Show all posts

Saturday 5 July 2014

Populate af:treeTable programatically using POJO in Oracle ADF (11g & 12c)

Hello All
This post is about creating & populating af:treeTable programmatically in ADF 11g and 12c
treeTable is basically a hierarchical representation of data, using ADF model layer we can create treeTable very easily by defining master-detail relation between viewObjects
see my previous posts on treeTable-
Tree Table Component in Oracle ADF(Hierarchical Representation)
Tree Table Component with declarative presentation in ADF, Access childs without custom selection listener
Expand and Collapse an af:treeTable programmatically in ADF Faces (Oracle ADF)
Refreshing Child Nodes of an af:treeTable / af:tree in Oracle ADF



to populate treeTable programmatically we need to configure data set that fits to tree hierarchy
thanks to Chris Muir's post about programmatic creation of treeTable
http://one-size-doesnt-fit-all.blogspot.in/2007/05/back-to-programming-programmatic-adf.html

there is 4-5 simple steps to do-
  • Create a fusion web application and drop a af:treeTable on page , in treeTable creation wizard select "bind later" 


  • now create managed bean to populate data in treeTable, create a simple List in managed bean of type POJO class (a java class that contains attributes and their accessor  )
  • so in this app i am going to Tv Serial and respective character names in treeTable, for that i have created a class that contains POJO for treeTable

  • import java.util.ArrayList;
    import java.util.List;
    
    
    public class Seasons {
        public Seasons(String name) {
            this.name = name; // To Store Header Values (Storing Seasons Name :))
            characters = new ArrayList<Seasons>(); // To Store Detail Values (Storing Season's Charatcers)
        }
    
        public void setCharacters(List<Seasons> empDet) {
            this.characters = empDet;
        }
    
        public List<Seasons> getCharacters() {
            return characters;
        }
        private String name;
        private List<Seasons> characters;
    
    
        public void setName(String name) {
            this.name = name;
        }
    
        public String getName() {
            return name;
        }
    // This methods directly add characters value in list
        public void addEmp(Seasons employee) {
            characters.add(employee);
        }
    
    }
    

  • In this class the characters list behaves as child of seasons, so in managed bean define a top-level list (that contains both master and detail) and add values

  • See managed Bean Code-
    import java.util.ArrayList;
    import java.util.List;
    
    import org.apache.myfaces.trinidad.model.ChildPropertyTreeModel;
    
    public class ProgrammaticTreeTabBean {
        List<Seasons> seasonList = new ArrayList<Seasons>();
    
        ChildPropertyTreeModel charatcerVal;
    
        public ProgrammaticTreeTabBean() {
            super();
            // Creating tree for Seasons and Characters details
            // Adding Master Values (seasons)
            Seasons season1 = new Seasons("Game of Thrones");
           // Adding Detail Values (Child Node-Characters)
            Seasons character = new Seasons("Tywin Lannister");
            season1.addCharaters(character);
            character = new Seasons("Tyrion Lannister");
            season1.addCharaters(character);
            character = new Seasons("Jaime Lannister");
            season1.addCharaters(character);
            character = new Seasons("Cersie Lannister");
            season1.addCharaters(character);
            character = new Seasons("Ned Stark");
            season1.addCharaters(character);
    
            // Adding Master Values (seasons)
            Seasons season2 = new Seasons("Arrow");
            // Adding Detail Values (Child Node-Characters)
            character = new Seasons("Oliver Queen");
            season2.addCharaters(character);
            character = new Seasons("Moira Queen");
            season2.addCharaters(character);
            character = new Seasons("Laurel Lance");
            season2.addCharaters(character);
            character = new Seasons("Sara Lance");
            season2.addCharaters(character);
    
            // Adding Master Values (seasons)
            Seasons season3 = new Seasons("Vikings");
          // Adding Detail Values (Child Node-Characters)
            character = new Seasons("Ragnar Lothrak");
            season3.addCharaters(character);
    
            // Adding all list to topList
            seasonList.add(season1);
            seasonList.add(season2);
            seasonList.add(season3);
            // Filtering Child Data, ChildPropertyTreeModel creates a TreeModel from a List of beans, see
            // https://myfaces.apache.org/trinidad/trinidad-api/apidocs/org/apache/myfaces/trinidad/model/ChildPropertyTreeModel.html
            charatcerVal = new ChildPropertyTreeModel(seasonList, "characters");
        }
    
        public ChildPropertyTreeModel getCharatcerVal() {
            return charatcerVal;
        }
    }
    

  • Now code part is complete, now configure your treeTable to show data, see XML source of af:treeTable

  • <af:treeTable rowBandingInterval="0" id="tt1"
                                  value="#{pageFlowScope.ProgrammaticTreeTabBean.charatcerVal}" var="node"
                                  rowSelection="single" initiallyExpanded="true">
                        <f:facet name="nodeStamp">
                            <af:column headerText="Node Stamp" id="c1" width="250">
                                <af:outputText value="#{node.name}" id="ot1" inlineStyle="font-weight:bold;"/>
                            </af:column>
                        </f:facet>
                    </af:treeTable>
    

  • Now run your application and check , what you have done ;)
Happy Learning :) Sample ADF Application (12.1.3)