com.hazelcast.cp.internal.datastructures.semaphore

Class RaftSemaphore

java.lang.Object

com.hazelcast.cp.internal.datastructures.spi.blocking.BlockingResource<AcquireInvocationKey>

com.hazelcast.cp.internal.datastructures.semaphore.RaftSemaphore

All Implemented Interfaces:

DataSerializable, IdentifiedDataSerializable

public class RaftSemaphore
extends BlockingResource<AcquireInvocationKey>
implements IdentifiedDataSerializable

State-machine implementation of the Raft-based semaphore. Supports both sessionless and session-aware semaphore proxies.

Method Summary

Modifier and Type	Method and Description
protected Collection<Long>	getActivelyAttachedSessions() Returns a non-null collection of session ids that the current state of the resource is attached to.
int	getFactoryId() Returns DataSerializableFactory factory ID for this class.
int	getId() Returns type identifier for this class.
protected void	onSessionClose(long sessionId, Map<Long,Object> responses) Releases permits of the closed session.
protected void	onWaitKeyExpire(AcquireInvocationKey key)
void	readData(ObjectDataInput in) Reads fields from the input stream
String	toString()
void	writeData(ObjectDataOutput out) Writes object fields to output stream

Methods inherited from class com.hazelcast.cp.internal.datastructures.spi.blocking.BlockingResource

addWaitKey, clearWaitKeys, cloneForSnapshot, getAllWaitKeys, getGroupId, getInternalWaitKeysMap, getName, getWaitKeyContainer, internalToString, removeWaitKey, waitKeyContainersIterator

Methods inherited from class java.lang.Object

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

Method Detail

onSessionClose

protected void onSessionClose(long sessionId,
                              Map<Long,Object> responses)

Releases permits of the closed session.

Specified by:

onSessionClose in class BlockingResource<AcquireInvocationKey>

getActivelyAttachedSessions

protected Collection<Long> getActivelyAttachedSessions()

Description copied from class: BlockingResource

Returns a non-null collection of session ids that the current state of the resource is attached to. For instance, owner sessions of semaphore permits.

Specified by:

getActivelyAttachedSessions in class BlockingResource<AcquireInvocationKey>

onWaitKeyExpire

protected void onWaitKeyExpire(AcquireInvocationKey key)

Overrides:

onWaitKeyExpire in class BlockingResource<AcquireInvocationKey>

getFactoryId

public int getFactoryId()

Description copied from interface: IdentifiedDataSerializable

Returns DataSerializableFactory factory ID for this class.

Specified by:

getFactoryId in interface IdentifiedDataSerializable

Returns:

factory ID

getId

public int getId()

Description copied from interface: IdentifiedDataSerializable

Returns type identifier for this class. It should be unique per DataSerializableFactory.

Specified by:

getId in interface IdentifiedDataSerializable

Returns:

type ID

writeData

public void writeData(ObjectDataOutput out)
               throws IOException

Description copied from interface: DataSerializable

Writes object fields to output stream

Specified by:

writeData in interface DataSerializable

Overrides:

writeData in class BlockingResource<AcquireInvocationKey>

Parameters:

out - output

Throws:

IOException - if an I/O error occurs. In particular, an IOException may be thrown if the output stream has been closed.

readData

public void readData(ObjectDataInput in)
              throws IOException

Description copied from interface: DataSerializable

Reads fields from the input stream

Specified by:

readData in interface DataSerializable

Overrides:

readData in class BlockingResource<AcquireInvocationKey>

Parameters:

in - input

Throws:

IOException - if an I/O error occurs. In particular, an IOException may be thrown if the input stream has been closed.

toString

public String toString()

Overrides:

toString in class Object