RetrieveFullEntityTransaction#

public class RetrieveFullEntityTransaction extends BackendTransaction#

Retrieve the full entity from the backend - with all parents, properties, file properties and so on.

TODO: This class should rather be called FullEntityRetrieval or FullEntityRetrieveTransaction.

When the entity which is to be retrieved has a defined list of Query.Selection which select properties from referenced entities, the referenced entities are retrieved as well. Otherwise, only the referenced id is retrieved and the entity stays rather flat.

Author:

Timm Fitschen

Constructors#

RetrieveFullEntityTransaction#

public RetrieveFullEntityTransaction(EntityInterface entity, Subject subject)#

RetrieveFullEntityTransaction#

public RetrieveFullEntityTransaction(Container<? extends EntityInterface> container, Subject subject)#

RetrieveFullEntityTransaction#

public RetrieveFullEntityTransaction(EntityID id, Subject subject)#

Methods#

execute#

public void execute()#

getContainer#

public Container<? extends EntityInterface> getContainer()#

getSubSelects#

public List<Selection> getSubSelects(List<Selection> selections, String select)#

Return all non-null subselects of those selections which match the given select String.

Effectively, this reduces the depth of the selections by one (and drops non-matching selections).

Parameters:

  • selections

  • select

Returns:

A new list of Selections.

retrieveFullEntitiesInContainer#

public void retrieveFullEntitiesInContainer(Container<? extends EntityInterface> container)#

Retrieve the entities in the container.

Parameters:

  • container

retrieveFullEntity#

public void retrieveFullEntity(EntityInterface e, List<Selection> selections)#

Retrieve a single full entity.

If the selections are not empty, retrieve the referenced entities matching the ‘selections’ as well.

This method is called recursively during the retrieval of the referenced entities.

Parameters:

  • e – The entity.

  • selections

retrieveSubEntities#

public void retrieveSubEntities(EntityInterface e, List<Selection> selections)#

Retrieve the Entities which match the selections and are referenced by the Entity ‘e’.

Parameters:

  • e

  • selections