/// <summary>
/// Creates a new instance of <see cref="RavenChildProjector{TProjection}"/>.
/// </summary>
/// <param name="mapBuilder">
/// The <see cref="IEventMapBuilder{TProjection,TKey,TContext}"/>
/// with already configured handlers for all the required events
/// but not yet configured how to handle custom actions, projection creation, updating and deletion.
/// The <see cref="IEventMap{TContext}"/> will be created from it.
/// </param>
/// <param name="setIdentity">
/// Is used by the projector to set the identity of the projection.
/// </param>
/// <param name="children">An optional collection of <see cref="IRavenChildProjector"/> which project events
/// in the same session just before the parent projector.</param>
public RavenChildProjector(
IEventMapBuilder <TProjection, string, RavenProjectionContext> mapBuilder,
Action <TProjection, string> setIdentity,
IEnumerable <IRavenChildProjector> children = null)
{
mapConfigurator = new RavenEventMapConfigurator <TProjection>(mapBuilder, setIdentity, children);
}
public ExampleProjector(IEventMapBuilder <TProjection, string, ProjectionContext> mapBuilder, InMemoryDatabase store, params IExampleProjector[] childProjectors)
{
this.store = store;
var map = BuildMapFrom(mapBuilder);
innerProjector = new Projector(map, childProjectors.Select(p => p.InnerProjector));
}
private IEventMap <ProjectionContext> BuildMapFrom(IEventMapBuilder <TProjection, string, ProjectionContext> mapBuilder)
{
mapBuilder.HandleProjectionModificationsAs((key, context, projector, options) =>
{
TProjection projection = store.GetRepository <TProjection>().Find(key);
if (projection == null)
{
projection = new TProjection()
{
Id = key
};
store.Add(projection);
}
return(projector(projection));
});
mapBuilder.HandleProjectionDeletionsAs((key, context, options) =>
{
store.GetRepository <TProjection>().RemoveByKey(key);
return(Task.FromResult(0));
});
mapBuilder.HandleCustomActionsAs((context, projector) => projector());
return(mapBuilder.Build());
}
private IEventMap <ProjectionContext> BuildMapFrom(IEventMapBuilder <TProjection, string, ProjectionContext> mapBuilder)
{
return(mapBuilder.Build(new ProjectorMap <TProjection, string, ProjectionContext>
{
Create = async(key, context, projector, shouldOverride) =>
{
var projection = new TProjection()
{
Id = key
};
await projector(projection);
store.Add(projection);
},
Update = async(key, context, projector, createIfMissing) =>
{
TProjection projection = store.GetRepository <TProjection>().Find(key);
await projector(projection);
store.Add(projection);
},
Delete = (key, context) =>
{
store.GetRepository <TProjection>().RemoveByKey(key);
return Task.FromResult(true);
},
Custom = (context, projector) => projector()
}));
}
/// <summary>
/// Creates a new instance of <see cref="NHibernateProjector{TProjection,TKey,TState}"/>.
/// </summary>
/// <param name="sessionFactory">The delegate that creates a new <see cref="ISession"/>.</param>
/// <param name="mapBuilder">
/// The <see cref="IEventMapBuilder{TProjection,TKey,TContext}"/>
/// with already configured handlers for all the required events
/// but not yet configured how to handle custom actions, projection creation, updating and deletion.
/// The <see cref="IEventMap{TContext}"/> will be created from it.
/// </param>
/// <param name="children">An optional collection of <see cref="INHibernateChildProjector"/> which project events
/// in the same transaction just before the parent projector.</param>
public NHibernateProjector(
Func <ISession> sessionFactory,
IEventMapBuilder <TProjection, TKey, NHibernateProjectionContext> mapBuilder, Action <TProjection, TKey> setIdentity,
IEnumerable <INHibernateChildProjector> children = null)
{
this.sessionFactory = sessionFactory;
mapConfigurator = new NHibernateEventMapConfigurator <TProjection, TKey>(mapBuilder, setIdentity, children);
}
public EntityFrameworkEventMapConfigurator(
IEventMapBuilder <TProjection, TKey, EntityFrameworkProjectionContext> eventMapBuilder,
Action <TProjection, TKey> setIdentity)
{
_setIdentity = setIdentity ?? throw new ArgumentNullException(nameof(setIdentity));
_eventMapBuilder = eventMapBuilder ?? throw new ArgumentNullException(nameof(eventMapBuilder));
_eventMap = BuildEventMap(eventMapBuilder);
}
public EntityFrameworkProjector(
Func <DbContext> dbContextFactory,
IEventMapBuilder <TProjection, TKey, EntityFrameworkProjectionContext> mapBuilder,
Action <TProjection, TKey> setIdentity)
{
_dbContextFactory = dbContextFactory ?? throw new ArgumentNullException(nameof(dbContextFactory));
_mapConfigurator = new EntityFrameworkEventMapConfigurator <TProjection, TKey>(mapBuilder, setIdentity);
}
private IEventMap <NHibernateProjectionContext> BuildMap(
IEventMapBuilder <TProjection, TKey, NHibernateProjectionContext> mapBuilder)
{
mapBuilder.HandleCustomActionsAs((_, projector) => projector());
mapBuilder.HandleProjectionModificationsAs(HandleProjectionModification);
mapBuilder.HandleProjectionDeletionsAs(HandleProjectionDeletion);
return(mapBuilder.Build());
}
private static IEventMap <ProjectionContext> BuildMap(IEventMapBuilder <ProjectionContext> eventMapBuilder)
{
if (eventMapBuilder == null)
{
throw new ArgumentNullException(nameof(eventMapBuilder));
}
SetupHandlers(eventMapBuilder);
return(eventMapBuilder.Build());
}
private IEventMap <EntityFrameworkProjectionContext> BuildEventMap(
IEventMapBuilder <TProjection, TKey, EntityFrameworkProjectionContext> mapBuilder)
{
return(mapBuilder.Build(new ProjectorMap <TProjection, TKey, EntityFrameworkProjectionContext>
{
Create = OnCreate,
Update = OnUpdate,
Delete = OnDelete,
Custom = (context, projector) => projector()
}));
}
public NHibernateEventMapConfigurator(
IEventMapBuilder <TProjection, TKey, NHibernateProjectionContext> mapBuilder,
IEnumerable <INHibernateChildProjector> children = null)
{
if (mapBuilder == null)
{
throw new ArgumentNullException(nameof(mapBuilder));
}
map = BuildMap(mapBuilder);
this.children = children?.ToList() ?? new List <INHibernateChildProjector>();
}
private static IEventMap <ProjectionContext> BuildMap(IEventMapBuilder <ProjectionContext> eventMapBuilder)
{
if (eventMapBuilder == null)
{
throw new ArgumentNullException(nameof(eventMapBuilder));
}
return(eventMapBuilder.Build(new ProjectorMap <ProjectionContext>
{
Custom = (context, projector) => projector()
}));
}
public RavenEventMapConfigurator(
IEventMapBuilder <TProjection, string, RavenProjectionContext> mapBuilder,
IEnumerable <IRavenChildProjector> children = null)
{
if (mapBuilder == null)
{
throw new ArgumentNullException(nameof(mapBuilder));
}
map = BuildMap(mapBuilder);
this.children = children?.ToList() ?? new List <IRavenChildProjector>();
}
/// <summary>
/// Creates a new instance of <see cref="RavenProjector{TProjection}"/>.
/// </summary>
/// <param name="sessionFactory">The delegate that creates a new <see cref="IAsyncDocumentSession"/>.</param>
/// <param name="mapBuilder">
/// The <see cref="IEventMapBuilder{TProjection,TKey,TContext}"/>
/// with already configured handlers for all the required events
/// but not yet configured how to handle custom actions, projection creation, updating and deletion.
/// The <see cref="IEventMap{TContext}"/> will be created from it.
/// </param>
/// <param name="setIdentity">
/// Is used by the projector to set the identity of the projection.
/// </param>
/// <param name="children">An optional collection of <see cref="IRavenChildProjector"/> which project events
/// in the same session just before the parent projector.</param>
public RavenProjector(
Func <IAsyncDocumentSession> sessionFactory,
IEventMapBuilder <TProjection, string, RavenProjectionContext> mapBuilder,
Action <TProjection, string> setIdentity,
IEnumerable <IRavenChildProjector> children = null)
{
if (mapBuilder == null)
{
throw new ArgumentNullException(nameof(mapBuilder));
}
this.sessionFactory = sessionFactory ?? throw new ArgumentNullException(nameof(sessionFactory));
mapConfigurator = new RavenEventMapConfigurator <TProjection>(mapBuilder, setIdentity, children);
}
public Projector(IEventMapBuilder <ProjectionContext> eventMapBuilder, IEnumerable <Projector> children = null)
{
if (eventMapBuilder == null)
{
throw new ArgumentNullException(nameof(eventMapBuilder));
}
SetupHandlers(eventMapBuilder);
map = eventMapBuilder.Build();
this.children = children?.ToList() ?? new List <Projector>();
if (this.children.Contains(null))
{
throw new ArgumentException("There is null child projector.", nameof(children));
}
}
/// <summary>
/// Creates a new instance of <see cref="NHibernateChildProjector{TProjection,TKey}"/>.
/// </summary>
/// <param name="mapBuilder">
/// The <see cref="IEventMapBuilder{TProjection,TKey,TContext}"/>
/// with already configured handlers for all the required events
/// but not yet configured how to handle custom actions, projection creation, updating and deletion.
/// The <see cref="IEventMap{TContext}"/> will be created from it.
/// </param>
/// <param name="children">An optional collection of <see cref="INHibernateChildProjector"/> which project events
/// in the same transaction just before the parent projector.</param>
public NHibernateChildProjector(
IEventMapBuilder <TProjection, TKey, NHibernateProjectionContext> mapBuilder,
IEnumerable <INHibernateChildProjector> children = null)
{
mapConfigurator = new NHibernateEventMapConfigurator <TProjection, TKey>(mapBuilder, children);
}
public InnerProjector(IEventMapBuilder <ProjectionContext> eventMapBuilder, IEnumerable <InnerProjector> children = null)
: this(BuildMap(eventMapBuilder), children)
{
}
private static void SetupHandlers(IEventMapBuilder <ProjectionContext> eventMapBuilder)
{
eventMapBuilder.HandleCustomActionsAs((context, projector) => projector());
}
