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20d7361566
* Make interfaces more specific than "MDS"
- Introduce `dax.Schemar` interface
- Introduce `dax.Noder` interface
- The rest is generally to standardize on the new interfaces.
- Remove `pilosa.SchemaInfoAPI` interface
- Move `TranslateNode` and `ComputeNode` types from controller to dax package
- Remove `queryer.FeatureBaseImporter`
- Remove `queryer.MDS` interface
- Remove `queryer.Importer` interface
- Identify types using an "MDS" interface and split into Noder/Schemar as necessary
- Changed `Queryer.orchestrator` to a `map[qual]*qualifiedOrchestrator` because we can't share an orchestrator across quals
* Convert orchestrator to use TableKeyer
(cherry picked from commit 14f1930004)
51 lines
1.7 KiB
Go
51 lines
1.7 KiB
Go
package dax
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import "context"
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// Schemar is similar to the pilosa.SchemaAPI interface, but it takes
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// TableQualifiers into account.
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type Schemar interface {
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TableByName(ctx context.Context, qual TableQualifier, tname TableName) (*QualifiedTable, error)
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TableByID(ctx context.Context, qtid QualifiedTableID) (*QualifiedTable, error)
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Tables(ctx context.Context, qual TableQualifier, tids ...TableID) ([]*QualifiedTable, error)
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CreateTable(ctx context.Context, qtbl *QualifiedTable) error
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CreateField(ctx context.Context, qtid QualifiedTableID, fld *Field) error
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DropTable(ctx context.Context, qtid QualifiedTableID) error
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DropField(ctx context.Context, qtid QualifiedTableID, fname FieldName) error
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}
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//////////////////////////////////////////////
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// Ensure type implements interface.
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var _ Schemar = &NopSchemar{}
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// NopSchemar is a no-op implementation of the Schemar interface.
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type NopSchemar struct{}
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func NewNopSchemar() *NopSchemar {
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return &NopSchemar{}
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}
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func (s *NopSchemar) TableByName(context.Context, TableQualifier, TableName) (*QualifiedTable, error) {
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return nil, nil
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}
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func (s *NopSchemar) TableByID(ctx context.Context, qtid QualifiedTableID) (*QualifiedTable, error) {
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return nil, nil
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}
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func (s *NopSchemar) Tables(ctx context.Context, qual TableQualifier, tids ...TableID) ([]*QualifiedTable, error) {
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return nil, nil
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}
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func (s *NopSchemar) CreateTable(ctx context.Context, qtbl *QualifiedTable) error {
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return nil
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}
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func (s *NopSchemar) DropTable(ctx context.Context, qtid QualifiedTableID) error {
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return nil
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}
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func (s *NopSchemar) CreateField(ctx context.Context, qtid QualifiedTableID, fld *Field) error {
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return nil
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}
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func (s *NopSchemar) DropField(ctx context.Context, qtid QualifiedTableID, fld FieldName) error {
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return nil
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}
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