Package org.gridgain.internal.snapshots.structure

Class SequenceStructureHandler

java.lang.Object

org.gridgain.internal.snapshots.structure.SequenceStructureHandler

All Implemented Interfaces:

StructureHandler

public class SequenceStructureHandler
extends Object
implements StructureHandler

Implementation of StructureHandler for sequences.

Nested Class Summary

Nested classes/interfaces inherited from interface org.gridgain.internal.snapshots.structure.StructureHandler

StructureHandler.StructureHandlersHolder

Constructor Summary

Constructors

Constructor	Description
SequenceStructureHandler()

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.
Set<Structure>	getStructures(org.apache.ignite.internal.catalog.Catalog catalog)	Retrieves all structures from the given catalog.
boolean	tryDropStructure(org.apache.ignite.internal.catalog.UpdateContext updateContext, CommandState commandState, StructureView view)	If given view matches the handler, adds commands to command state to drop corresponding structure and returns true.
boolean	tryRestoreStructure(org.apache.ignite.internal.catalog.UpdateContext updateContext, 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.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SequenceStructureHandler

public SequenceStructureHandler()

Method Details

getStructures

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

Description copied from interface: StructureHandler

Retrieves all structures from the given catalog.

Specified by:

getStructures in interface StructureHandler

getStructure

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

Description copied from interface: StructureHandler

Retrieves structure by name from the given schema.

Specified by:

getStructure in interface StructureHandler

tryRestoreStructure

public boolean tryRestoreStructure(org.apache.ignite.internal.catalog.UpdateContext updateContext,
 CommandState commandState,
 StructureView view,
 int schemaId,
 int tableId,
 AtomicInteger nextGeneratedStructureId)

Description copied from interface: StructureHandler

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

Specified by:

tryRestoreStructure in interface StructureHandler

tryDropStructure

public boolean tryDropStructure(org.apache.ignite.internal.catalog.UpdateContext updateContext,
 CommandState commandState,
 StructureView view)

Description copied from interface: StructureHandler

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

Specified by:

tryDropStructure in interface StructureHandler

createStructureDescriptors

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

Description copied from interface: StructureHandler

Creates descriptors for the given structure IDs.

Specified by:

createStructureDescriptors in interface StructureHandler

dependenciesForTables

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

Description copied from interface: StructureHandler

Retrieves structures required for the given tables.

Specified by:

dependenciesForTables in interface StructureHandler