Exemple #1
0
func (view *viewIndexer) CreateIndex(requestId, name string, equalKey, rangeKey expression.Expressions,
	where expression.Expression, with value.Value) (datastore.Index, errors.Error) {

	view.Refresh()
	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.Debugf("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.Lock()
	defer view.Unlock()

	view.indexes[idx.Name()] = idx
	return idx, nil
}
Exemple #2
0
func (view *viewIndexer) CreatePrimaryIndex(requestId, name string, with value.Value) (
	datastore.PrimaryIndex, errors.Error) {

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

	view.Refresh()
	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.Debugf("Creating primary index %s", name)

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

	view.Lock()
	defer view.Unlock()

	view.indexes[idx.Name()] = idx
	view.primary[idx.Name()] = idx
	return idx, nil
}
Exemple #3
0
func (view *viewIndexer) CreateIndex(requestId, name string, seekKey, rangeKey expression.Expressions,
	where expression.Expression, with value.Value) (datastore.Index, errors.Error) {

	view.Refresh()
	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)
		}
	}

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

	var idx datastore.Index
	var err error

	if with != nil {
		idx, err = newViewIndexFromExistingMap(name, with.Actual().(string), rangeKey, view)
	} else {
		idx, err = newViewIndex(name, rangeKey, where, view)
	}

	if err != nil {
		return nil, errors.NewCbViewCreateError(err, name)
	}

	view.Lock()
	defer view.Unlock()

	view.indexes[idx.Name()] = idx
	return idx, nil
}