org.odpi.openmetadata.accessservices.assetcatalog.handlers

Class RelationshipHandler

java.lang.Object

org.odpi.openmetadata.accessservices.assetcatalog.handlers.RelationshipHandler

public class RelationshipHandler
extends Object

Relationship Handler supports the lookup of the asset's relationship from the repositories. It runs on the server-side of the Asset Catalog OMAS, fetches the relationships using the RepositoryHandler.

Constructor Summary

Constructors

Constructor and Description
RelationshipHandler(String sourceName, InvalidParameterHandler invalidParameterHandler, RepositoryHandler repositoryHandler, OMRSRepositoryHelper repositoryHelper, RepositoryErrorHandler errorHandler) Construct the handler information needed to interact with the repository services

Method Summary

Modifier and Type	Method and Description
Relationship	getRelationshipBetweenEntities(String userId, String entity1GUID, String entity2GUID, String relationshipType) Fetch relationship between entities details based on its unique identifier of the ends

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RelationshipHandler

public RelationshipHandler(String sourceName,
                           InvalidParameterHandler invalidParameterHandler,
                           RepositoryHandler repositoryHandler,
                           OMRSRepositoryHelper repositoryHelper,
                           RepositoryErrorHandler errorHandler)

Construct the handler information needed to interact with the repository services

Parameters:

sourceName - name of the component

invalidParameterHandler - handler for managing parameter errors

repositoryHandler - manages calls to the repository services

repositoryHelper - provides utilities for manipulating the repository services objects

errorHandler - provides common validation routines for the other handler classes

Method Detail

getRelationshipBetweenEntities

public Relationship getRelationshipBetweenEntities(String userId,
                                                   String entity1GUID,
                                                   String entity2GUID,
                                                   String relationshipType)
                                            throws InvalidParameterException,
                                                   UserNotAuthorizedException,
                                                   PropertyServerException

Fetch relationship between entities details based on its unique identifier of the ends

Parameters:

userId - String unique identifier for the user

entity1GUID - Entity guid of the first end of the relationship

entity2GUID - Entity guid of the second end of the relationship

relationshipType - Type of the relationship

Returns:

the relationship between entities

Throws:

InvalidParameterException - full path or userId is null

PropertyServerException - problem accessing property server

UserNotAuthorizedException - security access problem