com.redhat.lightblue.crud.mongo

Class AtomicIterateUpdate

java.lang.Object

com.redhat.lightblue.crud.mongo.AtomicIterateUpdate

All Implemented Interfaces:

DocUpdater

public class AtomicIterateUpdate
extends Object
implements DocUpdater

Atomic updater that evaluates the query, and updates the documents one by one using atomic updates This class is probably useless. It makes things complicated for update.

Constructor Summary

Constructors

Constructor and Description
AtomicIterateUpdate(com.fasterxml.jackson.databind.node.JsonNodeFactory nodeFactory, com.redhat.lightblue.eval.FieldAccessRoleEvaluator roleEval, Translator translator, com.mongodb.DBObject mongoUpdateExpr, com.redhat.lightblue.eval.Projector projector, Set<com.redhat.lightblue.util.Path> updatedFields)

Method Summary

Methods

Modifier and Type	Method and Description
void	update(com.redhat.lightblue.crud.CRUDOperationContext ctx, com.mongodb.DBCollection collection, com.redhat.lightblue.metadata.EntityMetadata md, com.redhat.lightblue.crud.CRUDUpdateResponse response, com.mongodb.DBObject query) Updates the documents in the resultset of a query

Methods inherited from class java.lang.Object

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

Constructor Detail

AtomicIterateUpdate

public AtomicIterateUpdate(com.fasterxml.jackson.databind.node.JsonNodeFactory nodeFactory,
                   com.redhat.lightblue.eval.FieldAccessRoleEvaluator roleEval,
                   Translator translator,
                   com.mongodb.DBObject mongoUpdateExpr,
                   com.redhat.lightblue.eval.Projector projector,
                   Set<com.redhat.lightblue.util.Path> updatedFields)

Method Detail

update

public void update(com.redhat.lightblue.crud.CRUDOperationContext ctx,
          com.mongodb.DBCollection collection,
          com.redhat.lightblue.metadata.EntityMetadata md,
          com.redhat.lightblue.crud.CRUDUpdateResponse response,
          com.mongodb.DBObject query)

Description copied from interface: DocUpdater

Updates the documents in the resultset of a query

Specified by:

update in interface DocUpdater

Parameters:

ctx - Operation context

collection - The collection in which the documents will be updated

md - Entity metadata

response - Update response

query - The query to search It is expected that how the documents will be updated is to be passed in the constructor. The implementation should run the query, update the documents, compute the projections of the updated documents, and update the operation context accordingly.1