com.sap.cds.services.impl.composite

Class CompositeService

java.lang.Object

com.sap.cds.services.impl.composite.CompositeService

All Implemented Interfaces:

Service

Direct Known Subclasses:

MessagingCompositeService

public class CompositeService
extends Object
implements Service

The composite service is responsible for dispatching events to configured services. The configuration is also used for delegating the handler registration to the configured services. Example: name: my_composite routes: - service: my_service events: - 'CREATE' - 'READ' As shown in the configuration example above, the events 'CREATE' and 'READ' are dispatched to 'my_service' when they are emitted on 'my_composite'. Also if a handler registration for these events is created on 'my_composite' the registration is delegated to 'my_service'.

Constructor Summary

Constructors

Constructor and Description
CompositeService(CdsProperties.Composite.CompositeServiceConfig config, CdsRuntime runtime)

Method Summary

Modifier and Type	Method and Description
void	after(EventPredicate matcher, Handler handler)
void	after(String[] events, String[] entities, int order, Handler handler)
void	before(EventPredicate matcher, Handler handler)
void	before(String[] events, String[] entities, int order, Handler handler)
void	emit(EventContext context)
String	getName()
void	on(EventPredicate matcher, Handler handler)
void	on(String[] events, String[] entities, int order, Handler handler)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.sap.cds.services.Service

after, after, after, before, before, before, create, on, on, on

Constructor Detail

CompositeService

public CompositeService(CdsProperties.Composite.CompositeServiceConfig config,
                        CdsRuntime runtime)

Method Detail

getName

public String getName()

Specified by:

getName in interface Service

on

public void on(String[] events,
               String[] entities,
               int order,
               Handler handler)

Specified by:

on in interface Service

on

public void on(EventPredicate matcher,
               Handler handler)

Specified by:

on in interface Service

before

public void before(String[] events,
                   String[] entities,
                   int order,
                   Handler handler)

Specified by:

before in interface Service

before

public void before(EventPredicate matcher,
                   Handler handler)

Specified by:

before in interface Service

after

public void after(String[] events,
                  String[] entities,
                  int order,
                  Handler handler)

Specified by:

after in interface Service

after

public void after(EventPredicate matcher,
                  Handler handler)

Specified by:

after in interface Service

emit

public void emit(EventContext context)

Specified by:

emit in interface Service