org.apache.hadoop.hbase.client

类 HBaseAdmin.ProcedureFuture<V>

java.lang.Object

org.apache.hadoop.hbase.client.HBaseAdmin.ProcedureFuture<V>

所有已实现的接口:

Future<V>

封闭类:

HBaseAdmin

@InterfaceAudience.Private
@InterfaceStability.Evolving
protected static class HBaseAdmin.ProcedureFuture<V>
extends Object
implements Future<V>

Future that waits on a procedure result. Returned by the async version of the Admin calls, and used internally by the sync calls to wait on the result of the procedure.

嵌套类概要

嵌套类

限定符和类型	类和说明
protected static interface	HBaseAdmin.ProcedureFuture.WaitForStateCallable

构造器概要

构造器

构造器和说明
HBaseAdmin.ProcedureFuture(HBaseAdmin admin, Long procId)
HBaseAdmin.ProcedureFuture(HBaseAdmin admin, Long procId, boolean waitForOpResult)

方法概要

方法

限定符和类型	方法和说明
protected org.apache.hadoop.hbase.protobuf.generated.MasterProtos.AbortProcedureResponse	abortProcedureResult(org.apache.hadoop.hbase.protobuf.generated.MasterProtos.AbortProcedureRequest request)
boolean	cancel(boolean mayInterruptIfRunning)
protected V	convertResult(org.apache.hadoop.hbase.protobuf.generated.MasterProtos.GetProcedureResultResponse response) Convert the procedure result response to a specified type.
V	get()
V	get(long timeout, TimeUnit unit)
protected HBaseAdmin	getAdmin()
protected org.apache.hadoop.hbase.protobuf.generated.MasterProtos.GetProcedureResultResponse	getProcedureResult(org.apache.hadoop.hbase.protobuf.generated.MasterProtos.GetProcedureResultRequest request)
boolean	isCancelled()
boolean	isDone()
protected V	postOpeartionFailure(IOException exception, long deadlineTs) Called after the operation is terminated with a failure.
protected V	postOperationResult(V result, long deadlineTs) Called after the operation is completed and the result fetched.
protected void	waitForState(long deadlineTs, HBaseAdmin.ProcedureFuture.WaitForStateCallable callable)
protected V	waitOperationResult(long deadlineTs) Fallback implementation in case the procedure is not supported by the server.

从类继承的方法 java.lang.Object

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

构造器详细资料

HBaseAdmin.ProcedureFuture

public HBaseAdmin.ProcedureFuture(HBaseAdmin admin,
                          Long procId)

HBaseAdmin.ProcedureFuture

public HBaseAdmin.ProcedureFuture(HBaseAdmin admin,
                          Long procId,
                          boolean waitForOpResult)

方法详细资料

cancel

public boolean cancel(boolean mayInterruptIfRunning)

指定者:

cancel 在接口中 Future<V>

isCancelled

public boolean isCancelled()

指定者:

isCancelled 在接口中 Future<V>

abortProcedureResult

protected org.apache.hadoop.hbase.protobuf.generated.MasterProtos.AbortProcedureResponse abortProcedureResult(org.apache.hadoop.hbase.protobuf.generated.MasterProtos.AbortProcedureRequest request)
                                                                                                       throws IOException

抛出:

IOException

get

public V get()
      throws InterruptedException,
             ExecutionException

指定者:

get 在接口中 Future<V>

抛出:

InterruptedException

ExecutionException

get

public V get(long timeout,
    TimeUnit unit)
      throws InterruptedException,
             ExecutionException,
             TimeoutException

指定者:

get 在接口中 Future<V>

抛出:

InterruptedException

ExecutionException

TimeoutException

isDone

public boolean isDone()

指定者:

isDone 在接口中 Future<V>

getAdmin

protected HBaseAdmin getAdmin()

getProcedureResult

protected org.apache.hadoop.hbase.protobuf.generated.MasterProtos.GetProcedureResultResponse getProcedureResult(org.apache.hadoop.hbase.protobuf.generated.MasterProtos.GetProcedureResultRequest request)
                                                                                                         throws IOException

抛出:

IOException

convertResult

protected V convertResult(org.apache.hadoop.hbase.protobuf.generated.MasterProtos.GetProcedureResultResponse response)
                   throws IOException

Convert the procedure result response to a specified type.

参数:

response - the procedure result object to parse

返回:

the result data of the procedure.

抛出:

IOException

waitOperationResult

protected V waitOperationResult(long deadlineTs)
                         throws IOException,
                                TimeoutException

Fallback implementation in case the procedure is not supported by the server. It should try to wait until the operation is completed.

参数:

deadlineTs - the timestamp after which this method should throw a TimeoutException

返回:

the result data of the operation

抛出:

IOException

TimeoutException

postOperationResult

protected V postOperationResult(V result,
                    long deadlineTs)
                         throws IOException,
                                TimeoutException

Called after the operation is completed and the result fetched. this allows to perform extra steps after the procedure is completed. it allows to apply transformations to the result that will be returned by get().

参数:

result - the result of the procedure

deadlineTs - the timestamp after which this method should throw a TimeoutException

返回:

the result of the procedure, which may be the same as the passed one

抛出:

IOException

TimeoutException

postOpeartionFailure

protected V postOpeartionFailure(IOException exception,
                     long deadlineTs)
                          throws IOException,
                                 TimeoutException

Called after the operation is terminated with a failure. this allows to perform extra steps after the procedure is terminated. it allows to apply transformations to the result that will be returned by get(). The default implementation will rethrow the exception

参数:

exception - the exception got from fetching the result

deadlineTs - the timestamp after which this method should throw a TimeoutException

返回:

the result of the procedure, which may be the same as the passed one

抛出:

IOException

TimeoutException

waitForState

protected void waitForState(long deadlineTs,
                HBaseAdmin.ProcedureFuture.WaitForStateCallable callable)
                     throws IOException,
                            TimeoutException

抛出:

IOException

TimeoutException