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EclipseLink/Development/Dynamic/Design PublicAPI

Public API

This page captures the design of the public API - introduced in the new package org.eclipse.persistence.dynamic - that allows developers to define and use dynamic entities.

Dynpersist.png

public interface DynamicEntity
  • Primary interface of a dynamic persistent entity. This is the API an application uses to interact with an entity.

DynamicEntity is the public interface for dealing with dynamic persistent objects. The purpose of dynamic persistent objects is to enable (simple) data access when only mapping information is available and no concrete Java model is present (specifically, no .class files .)

Applications using DynamicEntity's can access the persistent state using property names which correspond to the mapped attributes in the underlying EclipseLink descriptors. For properties mapped to containers (Collection,Map, etc.), the property is retrieved then the resulting container can be manipulated.

To discover meta-data about a DynamicEntity's properties, see the DynamicHelper class

Since:
EclipseLink 2.0
Method Summary
<T> T

get(java.lang.String propertyPath)
Return the persistence value for the given property as the specified type.
boolean isSet(java.lang.String propertyPath)
Discover if a property has a persistent value
DynamicEntity set(java.lang.String propertyPath, java.lang.Object value)
Set the persistence value for the given property to the specified value
  • EntityType.java
    • Provides access to the type information (meta-model) as well as functioning as a factory for new instances

Internal Design

New package org.eclipse.persistence.internal.dynamic

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