程序包 org.apache.iotdb.confignode.persistence.cq

类 CQInfo

java.lang.Object

org.apache.iotdb.confignode.persistence.cq.CQInfo

所有已实现的接口:

org.apache.iotdb.commons.snapshot.SnapshotProcessor

@ThreadSafe
public class CQInfo
extends java.lang.Object
implements org.apache.iotdb.commons.snapshot.SnapshotProcessor

嵌套类概要

嵌套类

修饰符和类型	类	说明
static class	CQInfo.CQEntry

构造器概要

构造器

构造器	说明
CQInfo()

方法概要

修饰符和类型	方法	说明
org.apache.iotdb.common.rpc.thrift.TSStatus	activeCQ(ActiveCQPlan plan)	Change the state of cq to ACTIVE.
org.apache.iotdb.common.rpc.thrift.TSStatus	addCQ(AddCQPlan plan)	Add a new CQ only if there was no mapping for this cqId, otherwise ignore this operation.
org.apache.iotdb.common.rpc.thrift.TSStatus	dropCQ(DropCQPlan plan)	Drop the CQ whose ID is same as cqId in plan.
boolean	equals(java.lang.Object o)
int	hashCode()
void	processLoadSnapshot(java.io.File snapshotDir)
boolean	processTakeSnapshot(java.io.File snapshotDir)
ShowCQResp	showCQ(ShowCQPlan plan)
org.apache.iotdb.common.rpc.thrift.TSStatus	updateCQLastExecutionTime(UpdateCQLastExecTimePlan plan)	Update the last execution time of the corresponding CQ.

从类继承的方法 java.lang.Object

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

构造器详细资料

CQInfo

public CQInfo()

方法详细资料

addCQ

public org.apache.iotdb.common.rpc.thrift.TSStatus addCQ(AddCQPlan plan)

Add a new CQ only if there was no mapping for this cqId, otherwise ignore this operation.

返回:

SUCCESS_STATUS if there was no mapping for this cqId, otherwise CQ_AlREADY_EXIST

dropCQ

public org.apache.iotdb.common.rpc.thrift.TSStatus dropCQ(DropCQPlan plan)

Drop the CQ whose ID is same as cqId in plan.

返回:

SUCCESS_STATUS if there is CQ whose ID and md5 is same as cqId in plan, otherwise NO_SUCH_CQ.

showCQ

public ShowCQResp showCQ(ShowCQPlan plan)

activeCQ

public org.apache.iotdb.common.rpc.thrift.TSStatus activeCQ(ActiveCQPlan plan)

Change the state of cq to ACTIVE.

返回:

Optional.empty() if there is no such cq, otherwise previous state of this cq.

updateCQLastExecutionTime

public org.apache.iotdb.common.rpc.thrift.TSStatus updateCQLastExecutionTime(UpdateCQLastExecTimePlan plan)

Update the last execution time of the corresponding CQ.

返回:

SUCCESS_STATUS if successfully updated, or NO_SUCH_CQ if 1. the CQ doesn't exist; or 2. md5 is different. or CQ_UPDATE_LAST_EXEC_TIME_FAILED 3. original lastExecutionTime >= current lastExecutionTime;

processTakeSnapshot

public boolean processTakeSnapshot(java.io.File snapshotDir)
                            throws org.apache.thrift.TException,
                                   java.io.IOException

指定者:

processTakeSnapshot 在接口中 org.apache.iotdb.commons.snapshot.SnapshotProcessor

抛出:

org.apache.thrift.TException

java.io.IOException

processLoadSnapshot

public void processLoadSnapshot(java.io.File snapshotDir)
                         throws org.apache.thrift.TException,
                                java.io.IOException

指定者:

processLoadSnapshot 在接口中 org.apache.iotdb.commons.snapshot.SnapshotProcessor

抛出:

org.apache.thrift.TException

java.io.IOException

equals

public boolean equals(java.lang.Object o)

覆盖:

equals 在类中 java.lang.Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 java.lang.Object