Package org.gridgain.internal.snapshots.structure

Interface StructureHandler

All Known Implementing Classes:

MapStructureHandler, SequenceStructureHandler

public interface StructureHandler

Handler to snapshot and restore structures (maps, sequences).

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	StructureHandler.StructureHandlersHolder	Contains registered structure handlers.

Method Summary

Modifier and Type	Method	Description
Set<StructureView>	createStructureDescriptors(org.apache.ignite.internal.catalog.Catalog catalog, Set<Integer> structureIds)	Creates descriptors for the given structure IDs.
Set<Structure>	dependenciesForTables(org.apache.ignite.internal.catalog.Catalog catalog, Collection<org.apache.ignite.internal.catalog.descriptors.CatalogTableDescriptor> tables)	Retrieves structures required for the given tables.
@Nullable Structure	getStructure(org.apache.ignite.internal.catalog.Catalog catalog, org.apache.ignite.internal.catalog.descriptors.CatalogSchemaDescriptor schema, String structureName)	Retrieves structure by name from the given schema.
static Set<StructureHandler>	getStructureHandlers()	Returns registered structure handlers.
Set<Structure>	getStructures(org.apache.ignite.internal.catalog.Catalog catalog)	Retrieves all structures from the given catalog.
static void	renameSystemTable(CommandState commandState, StructureView view, String newName)	Adds command to the command state to rename system table associated with the given structure view.
boolean	tryDropStructure(CommandState commandState, StructureView view)	If given view matches the handler, adds commands to command state to drop corresponding structure and returns true.
boolean	tryRestoreStructure(CommandState commandState, StructureView view, int schemaId, int tableId, AtomicInteger nextGeneratedStructureId)	If given view matches the handler, adds commands to command state to restore the given structure and returns true.

Method Details

getStructures

Set<Structure> getStructures(org.apache.ignite.internal.catalog.Catalog catalog)

Retrieves all structures from the given catalog.

dependenciesForTables

Set<Structure> dependenciesForTables(org.apache.ignite.internal.catalog.Catalog catalog,
 Collection<org.apache.ignite.internal.catalog.descriptors.CatalogTableDescriptor> tables)

Retrieves structures required for the given tables.

getStructure

@Nullable
@Nullable Structure getStructure(org.apache.ignite.internal.catalog.Catalog catalog,
 org.apache.ignite.internal.catalog.descriptors.CatalogSchemaDescriptor schema,
 String structureName)

Retrieves structure by name from the given schema.

tryRestoreStructure

boolean tryRestoreStructure(CommandState commandState,
 StructureView view,
 int schemaId,
 int tableId,
 AtomicInteger nextGeneratedStructureId)

If given view matches the handler, adds commands to command state to restore the given structure and returns true.

tryDropStructure

boolean tryDropStructure(CommandState commandState,
 StructureView view)

If given view matches the handler, adds commands to command state to drop corresponding structure and returns true.

createStructureDescriptors

Set<StructureView> createStructureDescriptors(org.apache.ignite.internal.catalog.Catalog catalog,
 Set<Integer> structureIds)

Creates descriptors for the given structure IDs.

renameSystemTable

static void renameSystemTable(CommandState commandState,
 StructureView view,
 String newName)

Adds command to the command state to rename system table associated with the given structure view.

getStructureHandlers

static Set<StructureHandler> getStructureHandlers()

Returns registered structure handlers.