Base PLM Type: PLMEntity

This tree can be navigated with the standard Knowledge functions available on the Feature Type:

• the attribute Children provides access to the list of child object in the tree
• the attribute Owner enables to retrieve the father in the tree
• Some functions such as Query enables a deep introspection in the tree.

However, in the infrastructure business logic, the Object is often replaced by a PLM Proxy, which corresponds to a partial copy of the Object. To sum up, the Children attribute returns the following:

• the Children of a PLM Core Reference are instances (instances and rep-instances)
• the Children of PLM Core instances are their associated PLM Core Reference
• the Children of PLM Core RepInstances are their associated PLM Core Representation.

The navigation to the father is also possible with the Owner and the InstantiatedBy attributes:

• The Owner of a PLM Core instances, PLM Core RepInstances, PLM Core Port or PLM Core Connection is a list of PLM Core Reference aggregating the object.
• The InstantiatedBy of a PLM Core Reference or PLMCore RepReference is a list of PLM Core references and/or PLM Core RepReference aggregating the object.
  Note: This attribute is available on the server only.

Navigation

Children Example

In the business rules executed on the server side, the Children attribute is available with the same logic. However, it is not possible to use the Query function in a recursive manner. The reason is that we do not want to generate memory consumption or computation time issue on the server.

Example

Basic Attributes Name Mapping Suppression

When ENOVIA V6 VPM database persistency has been replaced with Matrix One, a particular mapping of the data schema was introduced.

• When VPM modelers are describe their schema, they use the metadata language that hides the mapping.
• The rich client software components also use a DML (data manipulation language) called PLMQL that hides the mapping performed to create, update, navigate the data: they use the PLMQL language.

To increase performance, this mapping is now suppressed.

The table below shows the attributes mapping.