org.apache.hadoop.hbase.master.procedure

Class DeleteColumnFamilyProcedure

java.lang.Object

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

org.apache.hadoop.hbase.procedure2.StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

org.apache.hadoop.hbase.master.procedure.DeleteColumnFamilyProcedure

All Implemented Interfaces:

Comparable<Procedure>, TableProcedureInterface

@InterfaceAudience.Private
public class DeleteColumnFamilyProcedure
extends StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>
implements TableProcedureInterface

The procedure to delete a column family from an existing table.

Nested Class Summary

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

StateMachineProcedure.Flow

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

TableProcedureInterface.TableOperationType

Constructor Summary

Constructors

Constructor and Description
DeleteColumnFamilyProcedure()
DeleteColumnFamilyProcedure(MasterProcedureEnv env, TableName tableName, byte[] familyName)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	abort(MasterProcedureEnv env)
protected boolean	acquireLock(MasterProcedureEnv env)
void	deserializeStateData(InputStream stream)
protected StateMachineProcedure.Flow	executeFromState(MasterProcedureEnv env, MasterProcedureProtos.DeleteColumnFamilyState state)
protected MasterProcedureProtos.DeleteColumnFamilyState	getInitialState()
protected MasterProcedureProtos.DeleteColumnFamilyState	getState(int stateId)
protected int	getStateId(MasterProcedureProtos.DeleteColumnFamilyState state)
TableName	getTableName()
TableProcedureInterface.TableOperationType	getTableOperationType() Given an operation type we can take decisions about what to do with pending operations.
protected void	releaseLock(MasterProcedureEnv env)
protected void	rollbackState(MasterProcedureEnv env, MasterProcedureProtos.DeleteColumnFamilyState state)
void	serializeStateData(OutputStream stream)
protected void	setNextState(MasterProcedureProtos.DeleteColumnFamilyState state)
void	toStringClassDetails(StringBuilder sb)

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

execute, rollback

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

addStackIndex, beforeReplay, childrenCountDown, compareTo, completionCleanup, convert, convert, doExecute, doRollback, elapsedTime, getException, getLastUpdate, getOwner, getParentProcId, getProcId, getResult, getRootProcedureId, getStackIndexes, getStartTime, getState, getTimeout, getTimeRemaining, hasException, hasOwner, hasParent, hasTimeout, incChildrenLatch, isFailed, isFinished, isSuccess, isWaiting, newInstance, removeStackIndex, setAbortFailure, setChildrenLatch, setFailure, setFailure, setOwner, setParentProcId, setProcId, setResult, setStackIndexes, setStartTime, setState, setTimeout, setTimeoutFailure, toString, updateTimestamp, validateClass, wasExecuted

Methods inherited from class java.lang.Object

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

Constructor Detail

DeleteColumnFamilyProcedure

public DeleteColumnFamilyProcedure()

DeleteColumnFamilyProcedure

public DeleteColumnFamilyProcedure(MasterProcedureEnv env,
                           TableName tableName,
                           byte[] familyName)
                            throws IOException

Throws:

IOException

Method Detail

executeFromState

protected StateMachineProcedure.Flow executeFromState(MasterProcedureEnv env,
                                          MasterProcedureProtos.DeleteColumnFamilyState state)

Specified by:

executeFromState in class StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

rollbackState

protected void rollbackState(MasterProcedureEnv env,
                 MasterProcedureProtos.DeleteColumnFamilyState state)
                      throws IOException

Specified by:

rollbackState in class StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

Throws:

IOException

getState

protected MasterProcedureProtos.DeleteColumnFamilyState getState(int stateId)

Specified by:

getState in class StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

getStateId

protected int getStateId(MasterProcedureProtos.DeleteColumnFamilyState state)

Specified by:

getStateId in class StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

getInitialState

protected MasterProcedureProtos.DeleteColumnFamilyState getInitialState()

Specified by:

getInitialState in class StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

setNextState

protected void setNextState(MasterProcedureProtos.DeleteColumnFamilyState state)

Overrides:

setNextState in class StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

abort

public boolean abort(MasterProcedureEnv env)

Specified by:

abort in class Procedure<MasterProcedureEnv>

acquireLock

protected boolean acquireLock(MasterProcedureEnv env)

Overrides:

acquireLock in class Procedure<MasterProcedureEnv>

releaseLock

protected void releaseLock(MasterProcedureEnv env)

Overrides:

releaseLock in class Procedure<MasterProcedureEnv>

serializeStateData

public void serializeStateData(OutputStream stream)
                        throws IOException

Overrides:

serializeStateData in class StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

Throws:

IOException

deserializeStateData

public void deserializeStateData(InputStream stream)
                          throws IOException

Overrides:

deserializeStateData in class StateMachineProcedure<MasterProcedureEnv,MasterProcedureProtos.DeleteColumnFamilyState>

Throws:

IOException

toStringClassDetails

public void toStringClassDetails(StringBuilder sb)

Overrides:

toStringClassDetails in class Procedure<MasterProcedureEnv>

getTableName

public TableName getTableName()

Specified by:

getTableName in interface TableProcedureInterface

Returns:

the name of the table the procedure is operating on

getTableOperationType

public 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.