com.google.cloud.spanner.watcher

Interface SpannerDatabaseChangeSetPoller.Builder

All Known Subinterfaces:

SpannerDatabaseChangeSetPoller.Builder.TableExcluder

Enclosing class:

SpannerDatabaseChangeSetPoller

public static interface SpannerDatabaseChangeSetPoller.Builder

Builder for a SpannerDatabaseChangeSetPoller.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	SpannerDatabaseChangeSetPoller.Builder.TableExcluder Interface for excluding specific tables from a SpannerDatabaseChangeSetPoller.
static interface	SpannerDatabaseChangeSetPoller.Builder.TableSelecter Interface for selecting the tables that should be monitored by a SpannerDatabaseChangeSetPoller.

Method Summary

Modifier and Type	Method and Description
SpannerDatabaseChangeSetPoller	build() Creates a SpannerDatabaseChangeSetPoller from this builder.
SpannerDatabaseChangeSetPoller.Builder	setCommitTimestampRepository(CommitTimestampRepository repository) Sets a specific CommitTimestampRepository to use for the SpannerTableTailers that are watching the change set table.
SpannerDatabaseChangeSetPoller.Builder	setExecutor(ScheduledExecutorService executor) Sets a specific ScheduledExecutorService to use for this SpannerDatabaseChangeSetPoller.
SpannerDatabaseChangeSetPoller.Builder	setPollInterval(org.threeten.bp.Duration interval) Sets the poll interval to use for this SpannerDatabaseChangeSetPoller.

Method Detail

setCommitTimestampRepository

SpannerDatabaseChangeSetPoller.Builder setCommitTimestampRepository(CommitTimestampRepository repository)

Sets a specific CommitTimestampRepository to use for the SpannerTableTailers that are watching the change set table.

If none is set, it will default to a SpannerCommitTimestampRepository which stores the last seen commit timestamp in a table named LAST_SEEN_COMMIT_TIMESTAMPS. The table will be created if it does not yet exist.

setPollInterval

SpannerDatabaseChangeSetPoller.Builder setPollInterval(org.threeten.bp.Duration interval)

Sets the poll interval to use for this SpannerDatabaseChangeSetPoller. The default is 1 second.

setExecutor

SpannerDatabaseChangeSetPoller.Builder setExecutor(ScheduledExecutorService executor)

Sets a specific ScheduledExecutorService to use for this SpannerDatabaseChangeSetPoller. This executor will be used to execute the poll queries on the tables and to call the SpannerTableChangeWatcher.RowChangeCallbacks. The default will use a ScheduledThreadPoolExecutor with a core size equal to the number of tables that is being monitored.

build

SpannerDatabaseChangeSetPoller build()

Creates a SpannerDatabaseChangeSetPoller from this builder.