Package org.apache.iotdb.db.mpp.plan.execution.memory

Class MemorySourceHandle

java.lang.Object

org.apache.iotdb.db.mpp.plan.execution.memory.MemorySourceHandle

All Implemented Interfaces:

ISourceHandle

public class MemorySourceHandle
extends java.lang.Object
implements ISourceHandle

Constructor Summary

Constructors

Constructor	Description
MemorySourceHandle(org.apache.iotdb.tsfile.read.common.block.TsBlock result)

Method Summary

Modifier and Type	Method	Description
void	abort()	Abort the handle.
void	close()	Close the handle.
long	getBufferRetainedSizeInBytes()	Get the total amount of memory used by buffered tsblocks.
org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId	getLocalFragmentInstanceId()	Get the local fragment instance ID that this source handle belongs to.
java.lang.String	getLocalPlanNodeId()	Get the local plan node ID that this source handle belongs to.
boolean	isAborted()	If this handle is aborted.
com.google.common.util.concurrent.ListenableFuture<?>	isBlocked()	Get a future that will be completed when the input buffer is not empty.
boolean	isFinished()	If there are more tsblocks.
org.apache.iotdb.tsfile.read.common.block.TsBlock	receive()	Get a TsBlock.

Methods inherited from class java.lang.Object

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

Constructor Detail

MemorySourceHandle

public MemorySourceHandle(org.apache.iotdb.tsfile.read.common.block.TsBlock result)

Method Detail

getLocalFragmentInstanceId

public org.apache.iotdb.mpp.rpc.thrift.TFragmentInstanceId getLocalFragmentInstanceId()

Description copied from interface: ISourceHandle

Get the local fragment instance ID that this source handle belongs to.

Specified by:

getLocalFragmentInstanceId in interface ISourceHandle

getLocalPlanNodeId

public java.lang.String getLocalPlanNodeId()

Description copied from interface: ISourceHandle

Get the local plan node ID that this source handle belongs to.

Specified by:

getLocalPlanNodeId in interface ISourceHandle

getBufferRetainedSizeInBytes

public long getBufferRetainedSizeInBytes()

Description copied from interface: ISourceHandle

Get the total amount of memory used by buffered tsblocks.

Specified by:

getBufferRetainedSizeInBytes in interface ISourceHandle

receive

public org.apache.iotdb.tsfile.read.common.block.TsBlock receive()

Description copied from interface: ISourceHandle

Get a TsBlock. If the source handle is blocked, a null will be returned. A RuntimeException will be thrown if any error happened.

Specified by:

receive in interface ISourceHandle

isFinished

public boolean isFinished()

Description copied from interface: ISourceHandle

If there are more tsblocks.

Specified by:

isFinished in interface ISourceHandle

isBlocked

public com.google.common.util.concurrent.ListenableFuture<?> isBlocked()

Description copied from interface: ISourceHandle

Get a future that will be completed when the input buffer is not empty.

Specified by:

isBlocked in interface ISourceHandle

isAborted

public boolean isAborted()

Description copied from interface: ISourceHandle

If this handle is aborted.

Specified by:

isAborted in interface ISourceHandle

abort

public void abort()

Description copied from interface: ISourceHandle

Abort the handle. Discard all tsblocks which may still be in the memory buffer and cancel the future returned by ISourceHandle.isBlocked().

Should only be called in abnormal case

Specified by:

abort in interface ISourceHandle

close

public void close()

Description copied from interface: ISourceHandle

Close the handle. Discard all tsblocks which may still be in the memory buffer and complete the future returned by ISourceHandle.isBlocked().

Should only be called in normal case

Specified by:

close in interface ISourceHandle