Package com.mongodb

Class BasicDBObjectBuilder



  • public class BasicDBObjectBuilder
    extends Object

    Utility for building complex objects. For example:

       BasicDBObjectBuilder.start().add( "name" , "eliot").add("number" , 17).get()
     
    • Constructor Detail

      • BasicDBObjectBuilder

        public BasicDBObjectBuilder​()
        Creates a builder intialized with an empty document.
    • Method Detail

      • start

        public static BasicDBObjectBuilder start​()
        Creates a builder intialized with an empty document.
        Returns:
        The new empty builder
      • start

        public static BasicDBObjectBuilder start​(String key,
                                                 Object val)
        Creates a builder initialized with the given key/value.
        Parameters:
        key - The field name
        val - The value
        Returns:
        the new builder
      • start

        public static BasicDBObjectBuilder start​(Map documentAsMap)
        Creates an object builder from an existing map of key value pairs.
        Parameters:
        documentAsMap - a document in Map form.
        Returns:
        the new builder
      • append

        public BasicDBObjectBuilder append​(String key,
                                           Object val)
        Appends the key/value to the active object
        Parameters:
        key - the field name
        val - the value of the field
        Returns:
        this so calls can be chained
      • push

        public BasicDBObjectBuilder push​(String key)
        Creates an new empty object and inserts it into the current object with the given key. The new child object becomes the active one.
        Parameters:
        key - the field name
        Returns:
        this so calls can be chained
      • pop

        public BasicDBObjectBuilder pop​()
        Pops the active object, which means that the parent object becomes active
        Returns:
        this so calls can be chained
      • get

        public DBObject get​()
        Gets the top level document.
        Returns:
        The base object
      • isEmpty

        public boolean isEmpty​()
        Returns true if no key/value was inserted into the top level document.
        Returns:
        true if empty