.setRightType( B.class )
.setConstraint( "object", "!=", "$object" ).build();
sinkNode = new JoinNode();
sinkNode.setId( 1 );
sinkNode.setConstraints( new EmptyBetaConstraints() );
joinNode.addTupleSink( sinkNode );
wm = (InternalWorkingMemory) buildContext.getRuleBase().newStatefulSession( true );