Class SpannerPool

Version 6.20.0

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public class SpannerPool

Pool for keeping track of Spanner instances needed for connections.

When a connection is opened for a Google Cloud Spanner database, a Spanner object can be opened in the background. The SpannerPool keeps track of which Spanner objects have been opened by connections during the lifetime of the JVM, which connections are still opened and closed, and which Spanner objects could be closed.

Call the method SpannerPool#closeSpannerPool() at the end of your application to gracefully shutdown all instances in the pool.

Inheritance

java.lang.Object > SpannerPool

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)

Static Methods

closeSpannerPool()

public static void closeSpannerPool()

Closes the default SpannerPool and all Spanner instances that have been opened by connections and that are still open. Call this method at the end of your application to gracefully close all Spanner instances in the pool. Failing to call this method will keep your application running for 60 seconds after you close the last java.sql.Connection to Cloud Spanner, as this is the default timeout before the SpannerPool closes the unused Spanner instances.