Package org.odpi.openmetadata.commonservices.repositoryhandler

package org.odpi.openmetadata.commonservices.repositoryhandler

The RepositoryHandler provides object-like interfaces over the Open Metadata Repository Services (OMRS) repository connector. It supports the following abstractions:

• Conversion of repository services exceptions into common exceptions.
• Creation of the correct type of instances dependant on the setting of the external source GUID. This means that the correct provenance information is added to the instance.
• Validation of an instance's provenance information when an update is made. This means that external instances can only be updated by processes that represent the external source of the instance.
• Verification that instances received from the repositories have the appropriate effectivity date

The aim is to reduce the coding needed in the specific handlers used by the Open Metadata Access Services (OMASs) and ensure external entities and effectivity dates are managed correctly.

Class	Description
DuplicateEntityIterator	DuplicateEntityIterator retrieves the list of entities that need to be processed for a specific entity.
RelationshipAccumulator	Accumulates relationships from multiple retrieval requests.
RepositoryEntitiesIterator	RepositoryEntitiesIterator is an iterator class for iteratively retrieving entities (possibly restricting the type of entities returned).
RepositoryErrorHandler	RepositoryErrorHandler provides common validation routines for the other handler classes
RepositoryFindEntitiesIterator	RepositoryFindEntitiesIterator is an iterator class for iteratively retrieving entities based on a search criteria.
RepositoryFindRelationshipsIterator	RepositoryFindEntitiesIterator is an iterator class for iteratively retrieving relationships based on a search criteria.
RepositoryHandler	RepositoryHandler issues common calls to the open metadata repository to retrieve and store metadata.
RepositoryHandlerAuditCode	The RepositoryHandlerAuditCode is used to define the message content for the OMRS Audit Log.
RepositoryHandlerErrorCode	The RepositoryHandlerErrorCode is used to define first failure data capture (FFDC) for errors that occur when working with the Repository Handler Services.
RepositoryIterator	RepositoryIterator is the shared interface of all repository helper iterators that retrieve entity or relationship details from the repository.
RepositoryIteratorForEntities	RepositoryIteratorForEntities is the shared interface of all repository helper iterators that retrieve entity details from the repository.
RepositoryRelatedEntitiesIterator	RepositoryRelatedEntitiesIterator is an iterator class for iteratively retrieving relationships for a starting entity (possibly restricting the type of relationships returned) and returning the entity at the other end.
RepositoryRelationshipsIterator	RepositoryRelationshipsIterator is an iterator class for iteratively retrieving relationships for a starting entity (possibly restricting the type of relationships returned).
RepositorySelectedEntitiesIterator	RepositorySelectedEntitiesIterator is an iterator class for iteratively retrieving entities based on a search criteria.