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Interface com.sun.jaw.reference.common.RelationIf

public interface RelationIf
extends Serializable

Defining Relationships

The relationship service enables relationships between m-beans to be defined when they are required. The relationships do not need to be defined in advance. Information on the relationships between m-beans is not stored with the m-beans themselves, but is stored with the relationships. A relationship is an m-bean that implements the Java interface defined in com.sun.jaw.reference.common.RelationIf. To be able to access the relationship service, a relationship m-bean must be registered with the repository.

Model

In Java Dynamic Management Kit, a relationship is defined by:

A set of roles, for example in a relationship where a person owns a book, the person and the book are the roles in the relationship
A degree which corresponds to the number of required roles in a relationship

The m-beans involved in a relationship are referred to within the relationship by their object names.

Implementing a Relationship Service

To implement a relationship service, implement the interface com.sun.jaw.reference.agent.services.RelationSrvIf. Using a relationship service, it is possible to:

Retrieve relationships between m-beans
Retrieve specific roles within a relationship
Define new relationships between m-beans

See Also:: RelationSrvIf

getDegree(): Getter for "degree" property.
getRole(): Getter for "Role" property.
getRole(int): Getter for "Role" property.
setRole(int, ObjectName): Setter for the "Role" property.
setRole(ObjectName[]): Setter for the "Role" property.

getDegree

 public abstract Integer getDegree()

Getter for "degree" property. It corresponds to the number of required roles in a relationship

Returns:: The number of required roles in the current relationship

getRole

 public abstract ObjectName[] getRole()

Getter for "Role" property. It returns the set of roles.

Returns:: The set of roles in the current relationship.

getRole

 public abstract ObjectName getRole(int position)

Getter for "Role" property. It returns the role at the given index in the relationship.

Parameters:: position - the position in the role property.
Returns:: A role in the current relationship.

setRole

 public abstract void setRole(int position,
                              ObjectName roleName)

Setter for the "Role" property.

Parameters:: pos - the position in the role property.; roleName - the new value of the roleName.

setRole

 public abstract void setRole(ObjectName roleNames[])

Setter for the "Role" property.

Parameters:: roleNames - the new value of the "Role" property.

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