Package org.nuiton.topia.persistence.util

Interface Loador<E>

Type Parameters:
E - type of bean to load
All Superinterfaces:
java.io.Serializable
All Known Implementing Classes:
TopiaEntityBinder
public interface Loador<E>
extends java.io.Serializable
A simple contract to load an object from another one.
Author:
tchemit <chemit@codelutin.com>

  • Method Summary

    Modifier and Type Method Description
    java.lang.Class<E> getSourceType()
    Obtains the type of the entity.
    void load​(E from, E dst, boolean tech, java.lang.String... propertyNames)
    Bind an entity to another.
    java.util.Map<java.lang.String,​java.lang.Object> obtainProperties​(E from, java.lang.String... propertyNames)
    Obtain from an entity all data to bind to another one according the definition of the loador.

  • Method Details

    • getSourceType

      java.lang.Class<E> getSourceType()
      Obtains the type of the entity.
      Returns:
      the type of entity

    • obtainProperties

      java.util.Map<java.lang.String,​java.lang.Object> obtainProperties​(E from, java.lang.String... propertyNames)
      Obtain from an entity all data to bind to another one according the definition of the loador. This method is usefull when you can not directly used the load(Object, Object, boolean, String...) method. For example, when an entity has a immutable business key (says with an hibernate naturalId for example), and that you want to create the data in a db, you must give all the properties at the create time so this method allow you to do it).
      Parameters:
      from - the entity to bind
      propertyNames - subset of properties to load
      Returns:
      the map of properties to bind from the given entity.

    • load

      void load​(E from, E dst, boolean tech, java.lang.String... propertyNames)
      Bind an entity to another.
      Parameters:
      from - the source entity
      dst - the destination entity
      tech - a flag to bind or not the technical values of the entity (says TopiaId, TopiaVersion and TopiaCreateDate).
      propertyNames - subset of properties to load