Class BaseDatastoreBatchWriter (2.20.1)

public abstract class BaseDatastoreBatchWriter implements DatastoreBatchWriter

Base class for DatastoreBatchWriter.

Inheritance

java.lang.Object > BaseDatastoreBatchWriter

Implements

DatastoreBatchWriter

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Methods

add(FullEntity<?> entity)

public final Entity add(FullEntity<?> entity)

Datastore add operation: inserts the provided entity. This method will automatically allocate an id if necessary. If entity has a complete key and was already marked for deletion in this writer, the operation will be changed to #put.

Parameter
Name	Description
`entity`	`FullEntity<?>`

Returns
Type	Description
`Entity`

add(FullEntity<?>[] entities)

public final List<Entity> add(FullEntity<?>[] entities)

Datastore add operation: inserts the provided entities. This method will automatically allocate id for any entity with an incomplete key. For entities with complete keys that were marked for deletion in this writer the operation will be changed to #put.

Parameter
Name	Description
`entities`	`FullEntity<?>[]`

Returns
Type	Description
`List<Entity>`

addWithDeferredIdAllocation(FullEntity<?>[] entities)

public final void addWithDeferredIdAllocation(FullEntity<?>[] entities)

Datastore add operation. This method will also allocate id for any entity with an incomplete key. As opposed to #add(FullEntity) and #add(FullEntity...), this method will defer any necessary id allocation to submit time.

Parameter
Name	Description
`entities`	`FullEntity<?>[]`

deactivate()

protected void deactivate()

delete(Key[] keys)

public final void delete(Key[] keys)

A datastore delete operation. It is OK to request the deletion of a non-existing key. This operation will also remove from this batch any prior writes for entities with the same keys.

Parameter
Name	Description
`keys`	`Key[]`

getDatastore()

protected abstract Datastore getDatastore()

Returns
Type	Description
`Datastore`

getName()

protected String getName()

Returns
Type	Description
`String`

isActive()

public boolean isActive()

Returns true if still active (write operations were not sent to the Datastore).

Returns
Type	Description
`boolean`

newInvalidRequest(String msg, Object[] params)

protected DatastoreException newInvalidRequest(String msg, Object[] params)

Parameters
Name	Description
`msg`	`String`
`params`	`Object[]`

Returns
Type	Description
`DatastoreException`

put(FullEntity<?> entity)

public final Entity put(FullEntity<?> entity)

A Datastore put (a.k.a upsert) operation: inserts an entity if it does not exist, updates it otherwise. This method will automatically allocate an id if necessary. This operation will also remove from this writer any prior writes for the same entity.

Parameter
Name	Description
`entity`	`FullEntity<?>`

Returns
Type	Description
`Entity`

put(FullEntity<?>[] entities)

public final List<Entity> put(FullEntity<?>[] entities)

A Datastore put (a.k.a upsert) operation: creates an entity if it does not exist, updates it otherwise. This method will automatically allocate id for any entity with an incomplete key. This operation will also remove from this writer any prior writes for the same entities.

Parameter
Name	Description
`entities`	`FullEntity<?>[]`

Returns
Type	Description
`List<Entity>`

putWithDeferredIdAllocation(FullEntity<?>[] entities)

public final void putWithDeferredIdAllocation(FullEntity<?>[] entities)

Datastore put operation. This method will also allocate id for any entity with an incomplete key. As opposed to #put(FullEntity) and #put(FullEntity...), this method will defer any necessary id allocation to submit time.

Parameter
Name	Description
`entities`	`FullEntity<?>[]`

toAdd()

protected Map<Key,FullEntity<Key>> toAdd()

Returns
Type	Description
`Map<Key,FullEntity<Key>>`

toAddAutoId()

protected List<FullEntity<IncompleteKey>> toAddAutoId()

Returns
Type	Description
`List<FullEntity<IncompleteKey>>`

toDelete()

protected Set<Key> toDelete()

Returns
Type	Description
`Set<Key>`

toMutationPbList()

protected List<Mutation> toMutationPbList()

Returns
Type	Description
`List<Mutation>`

toPut()

protected Map<Key,FullEntity<Key>> toPut()

Returns
Type	Description
`Map<Key,FullEntity<Key>>`

toUpdate()

protected Map<Key,FullEntity<Key>> toUpdate()

Returns
Type	Description
`Map<Key,FullEntity<Key>>`

update(Entity[] entities)

public final void update(Entity[] entities)

A Datastore update operation. The operation will fail if an entity with the same key does not already exist. This operation will be converted to #put operation for entities that were already added or put in this writer.

Parameter
Name	Description
`entities`	`Entity[]`

validateActive()

protected void validateActive()