org.apache.hadoop.hbase.master.procedure

Class AbstractStateMachineNamespaceProcedure<TState>

java.lang.Object

org.apache.hadoop.hbase.procedure2.Procedure<TEnvironment>

org.apache.hadoop.hbase.procedure2.StateMachineProcedure<MasterProcedureEnv,TState>

org.apache.hadoop.hbase.master.procedure.AbstractStateMachineNamespaceProcedure<TState>

All Implemented Interfaces:

Comparable<Procedure<MasterProcedureEnv>>, TableProcedureInterface

Direct Known Subclasses:

CreateNamespaceProcedure, DeleteNamespaceProcedure, ModifyNamespaceProcedure

@InterfaceAudience.Private
public abstract class AbstractStateMachineNamespaceProcedure<TState>
extends StateMachineProcedure<MasterProcedureEnv,TState>
implements TableProcedureInterface

Base class for all the Namespace procedures that want to use a StateMachineProcedure. It provide some basic helpers like basic locking and basic toStringClassDetails().

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.procedure2.StateMachineProcedure

StateMachineProcedure.Flow

Nested classes/interfaces inherited from class org.apache.hadoop.hbase.procedure2.Procedure

Procedure.LockState

Nested classes/interfaces inherited from interface org.apache.hadoop.hbase.master.procedure.TableProcedureInterface

TableProcedureInterface.TableOperationType

Field Summary

Fields inherited from class org.apache.hadoop.hbase.procedure2.Procedure

NO_PROC_ID, NO_TIMEOUT

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractStateMachineNamespaceProcedure()
protected	AbstractStateMachineNamespaceProcedure(MasterProcedureEnv env)

Method Summary

Modifier and Type	Method and Description
protected Procedure.LockState	acquireLock(MasterProcedureEnv env)
protected abstract String	getNamespaceName()
TableName	getTableName()
abstract TableProcedureInterface.TableOperationType	getTableOperationType() Given an operation type we can take decisions about what to do with pending operations.
protected void	releaseLock(MasterProcedureEnv env)
void	toStringClassDetails(StringBuilder sb)

Methods inherited from class org.apache.hadoop.hbase.procedure2.StateMachineProcedure

abort, addChildProcedure, deserializeStateData, execute, executeFromState, failIfAborted, getCurrentState, getCycles, getInitialState, getState, getStateId, isRollbackSupported, isYieldAfterExecutionStep, isYieldBeforeExecuteFromState, rollback, rollbackState, serializeStateData, setNextState, toStringState

Methods inherited from class org.apache.hadoop.hbase.procedure2.Procedure

addStackIndex, afterReplay, beforeReplay, compareTo, completionCleanup, doAcquireLock, doExecute, doReleaseLock, doRollback, elapsedTime, getChildrenLatch, getException, getLastUpdate, getNonceKey, getOwner, getParentProcId, getProcedureMetrics, getProcId, getProcIdHashCode, getProcName, getResult, getRootProcedureId, getRootProcId, getStackIndexes, getState, getSubmittedTime, getTimeout, getTimeoutTimestamp, hasChildren, hasException, hasLock, hasOwner, hasParent, hasTimeout, haveSameParent, holdLock, incChildrenLatch, isFailed, isFinished, isInitializing, isRunnable, isSuccess, isWaiting, removeStackIndex, setAbortFailure, setChildrenLatch, setFailure, setFailure, setLastUpdate, setNonceKey, setOwner, setOwner, setParentProcId, setProcId, setResult, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, setTimeoutFailure, shouldWaitClientAck, toString, toStringClass, toStringDetails, toStringSimpleSB, updateMetricsOnFinish, updateMetricsOnSubmit, updateTimestamp, wasExecuted

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractStateMachineNamespaceProcedure

protected AbstractStateMachineNamespaceProcedure()

AbstractStateMachineNamespaceProcedure

protected AbstractStateMachineNamespaceProcedure(MasterProcedureEnv env)

Method Detail

getNamespaceName

protected abstract String getNamespaceName()

getTableName

public TableName getTableName()

Specified by:

getTableName in interface TableProcedureInterface

Returns:

the name of the table the procedure is operating on

getTableOperationType

public abstract TableProcedureInterface.TableOperationType getTableOperationType()

Description copied from interface: TableProcedureInterface

Given an operation type we can take decisions about what to do with pending operations. e.g. if we get a delete and we have some table operation pending (e.g. add column) we can abort those operations.

Specified by:

getTableOperationType in interface TableProcedureInterface

Returns:

the operation type that the procedure is executing.

toStringClassDetails

public void toStringClassDetails(StringBuilder sb)

Overrides:

toStringClassDetails in class Procedure<MasterProcedureEnv>

acquireLock

protected Procedure.LockState acquireLock(MasterProcedureEnv env)

Overrides:

acquireLock in class Procedure<MasterProcedureEnv>

releaseLock

protected void releaseLock(MasterProcedureEnv env)

Overrides:

releaseLock in class Procedure<MasterProcedureEnv>