com.google.cloud.spanner

Class Operation<R,M>

java.lang.Object

com.google.cloud.spanner.Operation<R,M>

public class Operation<R,M>
extends Object

Represents a long running operation.

Method Summary

Modifier and Type	Method and Description
M	getMetadata() Returns the metadata returned by the last refresh of this operation.
String	getName() Returns the name of the operation.
R	getResult() Returns result of the operation if the operation is complete and had a result.
boolean	isDone() Returns true if the operation is done.
boolean	isSuccessful() Returns true if the operation completed sucessfully.
Operation<R,M>	reload() Fetches the current status of this operation.
Operation<R,M>	waitFor(RetryOption... waitOptions) Blocks till the operation is complete or maximum time, if specified, has elapsed.

Methods inherited from class java.lang.Object

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

Method Detail

reload

public Operation<R,M> reload()
                      throws SpannerException

Fetches the current status of this operation.

Throws:

SpannerException

waitFor

public Operation<R,M> waitFor(RetryOption... waitOptions)
                       throws SpannerException

Blocks till the operation is complete or maximum time, if specified, has elapsed.

Returns:

null if operation is not found otherwise the current operation.

Throws:

SpannerException

getMetadata

public M getMetadata()

Returns the metadata returned by the last refresh of this operation. Returns null if no metadata was returned or if this operation has not been refereshed.

isDone

public boolean isDone()

Returns true if the operation is done.

getResult

public R getResult()
            throws SpannerException

Returns result of the operation if the operation is complete and had a result. Returns null if the operation is not complete or did not have a result.

Throws:

SpannerException - if the operation failed.

getName

public String getName()

Returns the name of the operation.

isSuccessful

public boolean isSuccessful()

Returns true if the operation completed sucessfully.