Package org.apache.iotdb.confignode.procedure.impl.schema

Class DeleteDatabaseProcedure

java.lang.Object

org.apache.iotdb.confignode.procedure.Procedure<Env>

org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

org.apache.iotdb.confignode.procedure.impl.schema.DeleteDatabaseProcedure

All Implemented Interfaces:

Comparable<Procedure<ConfigNodeProcedureEnv>>

public class DeleteDatabaseProcedure
extends StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure

StateMachineProcedure.Flow

Field Summary

Fields inherited from class org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure

isGeneratedByPipe

Fields inherited from class org.apache.iotdb.confignode.procedure.Procedure

NO_PROC_ID, NO_TIMEOUT

Constructor Summary

Constructors

Constructor	Description
DeleteDatabaseProcedure(boolean isGeneratedByPipe)
DeleteDatabaseProcedure(TDatabaseSchema deleteDatabaseSchema, boolean isGeneratedByPipe)

Method Summary

Modifier and Type	Method	Description
void	deserialize(ByteBuffer byteBuffer)
boolean	equals(Object that)
protected StateMachineProcedure.Flow	executeFromState(ConfigNodeProcedureEnv env, DeleteStorageGroupState state)	Called to perform a single step of the specified 'state' of the procedure.
TDatabaseSchema	getDeleteDatabaseSchema()
protected DeleteStorageGroupState	getInitialState()	Return the initial state object that will be used for the first call to executeFromState().
protected DeleteStorageGroupState	getState(int stateId)	Convert an ordinal (or state id) to an Enum (or more descriptive) state object.
protected int	getStateId(DeleteStorageGroupState deleteStorageGroupState)	Convert the Enum (or more descriptive) state object to an ordinal (or state id).
int	hashCode()
protected boolean	isRollbackSupported(DeleteStorageGroupState state)	Used by the default implementation of abort() to know if the current state can be aborted and rollback can be triggered.
protected void	rollbackState(ConfigNodeProcedureEnv env, DeleteStorageGroupState state)	Called to perform the rollback of the specified state.
void	serialize(DataOutputStream stream)
void	setDeleteDatabaseSchema(TDatabaseSchema deleteDatabaseSchema)

Methods inherited from class org.apache.iotdb.confignode.procedure.impl.StateMachineProcedure

addChildProcedure, execute, getCurrentState, getCycles, isEofState, isStateDeserialized, rollback, setNextState, toStringState

Methods inherited from class org.apache.iotdb.confignode.procedure.Procedure

acquireLock, addStackIndex, compareTo, deserializeTypeInfoForCompatibility, doAcquireLock, doExecute, doReleaseLock, doRollback, elapsedTime, getChildrenLatch, getException, getLastUpdate, getParentProcId, getProcId, getProcType, getResult, getRootProcId, getStackIndexes, getState, getSubmittedTime, getTimeout, getTimeoutTimestamp, hasChildren, hasException, hasLock, hasParent, hasTimeout, haveSameParent, holdLock, incChildrenLatch, isFailed, isFinished, isInitializing, isLockedWhenLoading, isRunnable, isSuccess, isWaiting, isYieldAfterExecution, releaseLock, removeStackIndex, restoreLock, setChildrenLatch, setFailure, setFailure, setLastUpdate, setParentProcId, setProcId, setProcRunnable, setResult, setRootProcedureId, setRootProcId, setStackIndexes, setState, setSubmittedTime, setTimeout, setTimeoutFailure, toString, toStringClassDetails, toStringDetails, toStringSimpleSB, updateMetricsOnFinish, updateMetricsOnSubmit, updateTimestamp, wasExecuted

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

DeleteDatabaseProcedure

public DeleteDatabaseProcedure(boolean isGeneratedByPipe)

DeleteDatabaseProcedure

public DeleteDatabaseProcedure(TDatabaseSchema deleteDatabaseSchema,
 boolean isGeneratedByPipe)

Method Details

getDeleteDatabaseSchema

public TDatabaseSchema getDeleteDatabaseSchema()

setDeleteDatabaseSchema

public void setDeleteDatabaseSchema(TDatabaseSchema deleteDatabaseSchema)

executeFromState

protected StateMachineProcedure.Flow executeFromState(ConfigNodeProcedureEnv env,
 DeleteStorageGroupState state)
                                               throws InterruptedException

Description copied from class: StateMachineProcedure

Called to perform a single step of the specified 'state' of the procedure.

Specified by:

executeFromState in class StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

state - state to execute

Returns:

Flow.NO_MORE_STATE if the procedure is completed, Flow.HAS_MORE_STATE if there is another step.

Throws:

InterruptedException

rollbackState

protected void rollbackState(ConfigNodeProcedureEnv env,
 DeleteStorageGroupState state)
                      throws IOException,
InterruptedException

Description copied from class: StateMachineProcedure

Called to perform the rollback of the specified state.

Specified by:

rollbackState in class StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

state - state to rollback

Throws:

IOException - temporary failure, the rollback will retry later

InterruptedException

isRollbackSupported

protected boolean isRollbackSupported(DeleteStorageGroupState state)

Description copied from class: StateMachineProcedure

Used by the default implementation of abort() to know if the current state can be aborted and rollback can be triggered.

Overrides:

isRollbackSupported in class StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

getState

protected DeleteStorageGroupState getState(int stateId)

Description copied from class: StateMachineProcedure

Convert an ordinal (or state id) to an Enum (or more descriptive) state object.

Specified by:

getState in class StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

Parameters:

stateId - the ordinal() of the state enum (or state id)

Returns:

the state enum object

getStateId

protected int getStateId(DeleteStorageGroupState deleteStorageGroupState)

Description copied from class: StateMachineProcedure

Convert the Enum (or more descriptive) state object to an ordinal (or state id).

Specified by:

getStateId in class StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

Parameters:

deleteStorageGroupState - the state enum object

Returns:

stateId the ordinal() of the state enum (or state id)

getInitialState

protected DeleteStorageGroupState getInitialState()

Description copied from class: StateMachineProcedure

Return the initial state object that will be used for the first call to executeFromState().

Specified by:

getInitialState in class StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

Returns:

the initial state enum object

serialize

public void serialize(DataOutputStream stream)
               throws IOException

Overrides:

serialize in class StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

Throws:

IOException

deserialize

public void deserialize(ByteBuffer byteBuffer)

Overrides:

deserialize in class StateMachineProcedure<ConfigNodeProcedureEnv,DeleteStorageGroupState>

equals

public boolean equals(Object that)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object