func NewJoin(keyspace datastore.Keyspace, join *algebra.Join) *Join {
return &Join{
keyspace: keyspace,
term: join.Right(),
outer: join.Outer(),
}
}
func (this *builder) VisitJoin(node *algebra.Join) (interface{}, error) {
_, err := node.Left().Accept(this)
if err != nil {
return nil, err
}
right := node.Right()
right.SetDefaultNamespace(this.namespace)
namespace, err := this.datastore.NamespaceByName(right.Namespace())
if err != nil {
return nil, err
}
keyspace, err := namespace.KeyspaceByName(right.Keyspace())
if err != nil {
return nil, err
}
join := NewJoin(keyspace, node)
this.subChildren = append(this.subChildren, join)
return nil, nil
}