Chapter 4 Using Container-Managed Persistence for Entity Beans - Oracle
网页A container-managed relationship (CMR) between fields in a pair of classes allows operations on one side of the relationship to affect the other side. At runtime, if a field in one instance is modified to refer to another instance, the referred instance will have its relationship field modified to reflect the change in relationship.
Container-Managed Relationships - SAP Online Help
网页Features. Container-managed relationships are realized using cmr-fields described in the deployment descriptor (s). Entity beans access their related container-managed entity beans using get and set accessor methods for these fields. Container-managed entity beans can access each other only through local interfaces.
Configuring a Container-Managed Relationship Field for a JPA ... - Oracle
网页In a JPA entity, you define container-managed relationship (CMR) fields (see "What are JPA Entity Container-Managed Relationship Fields?") as follows: "Configuring a Basic Mapping" "Configuring a Large Object Mapping" "Configuring a Serialized Object Mapping" "Configuring an One-to-One Mapping" "Configuring a Many-to-One Mapping"
EJB 2.0 Container-Managed Persistence (CMP) - Oracle
网页The EJB 2.0 specification expanded CMP to allow multiple entity beans to have relationships among themselves. This is referred to as Container-Managed Relationships (CMR). The container manages the relationships and the referential integrity of the relationships.
Converting an EJB 2.0 Entity Bean to EJB 3.0 - Oracle
网页The entity bean container-managed relationship (CMR) relationships in EJB 2.0 are specified with the <ejb-relation/> elements in the ejb-jar.xml deployment descriptor, and the entity bean CMR relationships in EJB 3.0 are specified in the bean class. The metadata annotations used to specify the entity bean CMR relationships are:
31.5. Container Managed Relationships | Red Hat Product …
网页There are two basic steps to create a container managed relationship: create the cmr-field abstract accessors and declare the relationship in the ejb-jar.xml file. The following two sections describe these steps. 31.5.1. CMR-Field Abstract Accessors.
Example: Creating a session bean facade - IBM
网页Select the CMP attributes and container-managed relationship (CMR) fields that you want to include in the service data objects (SDOs). For this example, you include all the attributes defined in the Registration bean. The required attributes, including the userid primary key field, are selected by default.
Defining virtual fields for persistent data fields and relationship ...
网页It works the same way with container-managed relationship (CMR) fields. You define a pair of abstract getters and setters, but rather than setting and returning a value that maps to a column in a table, you set and return a reference to another entity bean, or a Collection that will hold references to the entity bean.
12.5. Container Managed Relationships - docs.jboss.org
网页Container Managed Relationships (CMRs) are a powerful new feature of CMP 2.0. Programmers have been creating relationships between entity objects since EJB 1.0 was introduced (not to mention since the introduction of databases), but before CMP 2.0 the programmer had to write a lot of code for each relationship in order to extract the primary key of the related entity and store it in a pseudo ...
Creating Beans' Relationships - SAP Online Help
网页Select the container-managed entity bean that will have the cmr-filed for manipulating the relationship and from the context menu choose Open. In the right-hand pane, choose the Relations tab. Select Relationships and choose Add. The relationship appears as sub-node in the tree structure. Enter the following data:
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