Exemplo n.º 1
0
func (view *viewIndexer) CreatePrimaryIndex(name string, with value.Value) (datastore.PrimaryIndex, errors.Error) {

	// if name is not provided then use default name #primary
	if name == "" {
		name = PRIMARY_INDEX
	}

	if _, exists := view.indexes[name]; exists {
		return nil, errors.NewCbViewExistsError(nil, name)
	}

	// if the name matches any of the unusable indexes, return an error
	for _, iname := range view.nonUsableIndexes {
		if name == iname {
			return nil, errors.NewCbViewExistsError(nil, "Non usuable index "+name)
		}
	}

	if with != nil {
		return nil, errors.NewCbViewsWithNotAllowedError(nil, "")
	}

	logging.Infof("Creating primary index %s", name)

	idx, err := newViewPrimaryIndex(view, name)
	if err != nil {
		return nil, errors.NewCbViewCreateError(err, name)
	}

	view.indexes[idx.Name()] = idx
	view.primary[idx.Name()] = idx
	return idx, nil
}
Exemplo n.º 2
0
func (view *viewIndexer) CreateIndex(name string, equalKey, rangeKey expression.Expressions,
	where expression.Expression, with value.Value) (datastore.Index, errors.Error) {
	if _, exists := view.indexes[name]; exists {
		return nil, errors.NewCbViewExistsError(nil, name)
	}

	// if the name matches any of the unusable indexes, return an error
	for _, iname := range view.nonUsableIndexes {
		if name == iname {
			return nil, errors.NewCbViewExistsError(nil, "Non usuable index "+name)
		}
	}

	if with != nil {
		return nil, errors.NewCbViewsWithNotAllowedError(nil, "")
	}

	logging.Infof("Creating index %s with equal key %v range key %v", name, equalKey, rangeKey)

	idx, err := newViewIndex(name, datastore.IndexKey(rangeKey), where, view)
	if err != nil {
		return nil, errors.NewCbViewCreateError(err, name)
	}
	view.indexes[idx.Name()] = idx
	return idx, nil
}