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ODatabaseDocument - newElement()

This method creates a new record on the database.

Creating Elements

When you use OrientDB to host a Document database, the OElement class represents a document in the database. With Graph databases, OElement is the superclass to OVertex and OEdge. This method allows you to create a new element within your application. You can then set data on the element and save it to the database.

NOTE: In version 2.2.x and earlier, OrientDB Document databases used the ODocument class to represent documents. While it still exists as the main implementation of OElement, it is recommended that you no longer use it directly. Instead, from now on use the OElement class for documents.

Syntax

There are two methods available to you, one creates an empty element and the other creates the new element using a particular OrientDB class.

// METHOD 1
OElement ODatabaseDocument().newElement()

// METHOD 2
OElement ODatabaseDocument().newElement(String class)

Return Value

This method returns an OElement instance. You can then call additional methods on the element to add and configure the data it contains. When you are ready to make the changes persistent on OrientDB, call the save() method on the element.

Example

Imagine that you have a web application hosting blogs. You might want a method in the account management class to add new blog entries to OrientDB.

private ODatabaseDocument db;

// ADD NEW BLOG ENTRY
public void createBlogEntry(String title, String author, 
         String text, Boolean publish){

   // Log Operation
   logger.info("Creating New Blog Entry");

   // Initialize Entry
   OElement entry = db.newElement("BlogEntry");

   // Add Data
   entry.setProperty("title", title);
   entry.setProperty("author", author);
   entry.setProperty("text", text);
   entry.setProperty("publish", publish);

   // Update Database
   entry.save();

}