Package org.springframework.data.mongodb.core.convert

Interface MongoWriter<T>

Type Parameters:
T - the type of the object to convert to a Document
All Superinterfaces:
EntityWriter<T,org.bson.conversions.Bson>
All Known Subinterfaces:
MongoConverter
All Known Implementing Classes:
AbstractMongoConverter, MappingMongoConverter
public interface MongoWriter<T> extends EntityWriter<T,org.bson.conversions.Bson>
A MongoWriter is responsible for converting an object of type T to the native MongoDB representation Document.
Author:
Mark Pollack, Thomas Risberg, Oliver Gierke, Christoph Strobl

  • Method Details

    • convertToMongoType

      @Nullable default Object convertToMongoType(@Nullable Object obj)
      Converts the given object into one Mongo will be able to store natively. If the given object can already be stored as is, no conversion will happen.
      Parameters:
      obj - can be null.
      Returns:

    • convertToMongoType

      @Nullable Object convertToMongoType(@Nullable Object obj, @Nullable TypeInformation<?> typeInformation)
      Converts the given object into one Mongo will be able to store natively but retains the type information in case the given TypeInformation differs from the given object type.
      Parameters:
      obj - can be null.
      typeInformation - can be null.
      Returns:

    • convertToMongoType

      default Object convertToMongoType(@Nullable Object obj, MongoPersistentEntity<?> entity)

    • toDBRef

      com.mongodb.DBRef toDBRef(Object object, @Nullable MongoPersistentProperty referingProperty)
      Creates a DBRef to refer to the given object.
      Parameters:
      object - the object to create a DBRef to link to. The object's type has to carry an id attribute.
      referingProperty - the client-side property referring to the object which might carry additional metadata for the DBRef object to create. Can be null.
      Returns:
      will never be null.

    • toDocumentPointer

      default DocumentPointer<?> toDocumentPointer(Object source, @Nullable MongoPersistentProperty referringProperty)
      Creates a the DocumentPointer representing the link to another entity.
      Parameters:
      source - the object to create a document link to.
      referringProperty - the client-side property referring to the object which might carry additional metadata for the DBRef object to create. Can be null.
      Returns:
      will never be null.
      Since:
      3.3