Databases
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Note that there are some explanatory texts on larger screens.

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    <p>XHTML</p> <pre><code>&lt;h:form id="form"&gt; &lt;p:tree value="#{dynamicTreeBean.root}" var="node" dynamic="true" cache="true" id="tree"&gt; &lt;p:ajax event="expand" listener="#{dynamicTreeBean.onNodeExpand}" /&gt; &lt;p:treeNode&gt; &lt;h:outputText value="#{node}"/&gt; &lt;/p:treeNode&gt; &lt;/p:tree&gt; &lt;/h:form&gt; </code></pre> <p>Java</p> <pre><code>import java.util.Random; import javax.faces.bean.ManagedBean; import javax.faces.bean.SessionScoped; import org.primefaces.event.NodeExpandEvent; import org.primefaces.model.DefaultTreeNode; import org.primefaces.model.TreeNode; @ManagedBean @SessionScoped public class DynamicTreeBean { private TreeNode root; public DynamicTreeBean() { root = new DefaultTreeNode("Root", null); TreeNode dynamicTreeNode = new DefaultTreeNode("First", root); //&lt;Add dummy node: This is to have + sign in node to be able to expand it in GUI&gt; TreeNode node0 = new DefaultTreeNode("fake", dynamicTreeNode); //&lt;Add dummy node&gt; } public TreeNode getRoot() { return root; } static Random random = new Random(); public void onNodeExpand(NodeExpandEvent event) { //&lt;Remove dummy node&gt; if(event.getTreeNode().getChildCount()==1){ event.getTreeNode().getChildren().remove(0); } //&lt;/Remove dummy node&gt; //&lt;Generate some random children&gt; int childrenCount = random.nextInt(9)+1; for(int i=0;i&lt;childrenCount;i++){ TreeNode tn = new DefaultTreeNode("-child-"+i, event.getTreeNode()); //&lt;Add dummy node&gt; new DefaultTreeNode("fake", tn); //&lt;/Add dummy node&gt; } //&lt;/Generate some random children&gt; } } </code></pre>
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    1. POusing primefaces tree to load database tables
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Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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