org.openspaces.core.executor.juc
Class CallableTaskAdapter<T extends Serializable>

java.lang.Object
  org.openspaces.core.executor.juc.CallableTaskAdapter<T>

All Implemented Interfaces:

Externalizable, Serializable, ProcessObjectsProvider, Task<T>, TaskRoutingProvider

Direct Known Subclasses:

CallableDistributedTaskAdapter

public class CallableTaskAdapter<T extends Serializable>
extends Object
implements Task<T>, ProcessObjectsProvider, TaskRoutingProvider, Externalizable

An adapter allowing to execute a Callable using Space task executors.

Author:

kimchy

See Also:

Serialized Form

Constructor Summary

CallableTaskAdapter()
Here just for externalizable.

CallableTaskAdapter(Callable<T> callable)
Constructs a new callable task adapter with the callable to call.

Method Summary

T	execute() Simply delegates the execution to Callable.call().
protected Callable<T>	getCallable() Returns the embedded callable.
Object[]	getObjectsToProcess() Returns the callable passed so it will be processed on the node it is executed on as well.
Object	getRouting() Tries to extract the routing information form the task.
void	readExternal(ObjectInput in)
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

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

Constructor Detail

CallableTaskAdapter

public CallableTaskAdapter()

Here just for externalizable.

CallableTaskAdapter

public CallableTaskAdapter(Callable<T> callable)

Constructs a new callable task adapter with the callable to call.

Method Detail

execute

public T execute()
                               throws Exception

Simply delegates the execution to Callable.call().

Specified by:

execute in interface Task<T extends Serializable>

Returns:

computed result

Throws:

Exception - if unable to compute a result

getObjectsToProcess

public Object[] getObjectsToProcess()

Returns the callable passed so it will be processed on the node it is executed on as well.

Specified by:

getObjectsToProcess in interface ProcessObjectsProvider

getRouting

public Object getRouting()

Tries to extract the routing information form the task.

Specified by:

getRouting in interface TaskRoutingProvider

getCallable

protected Callable<T> getCallable()

Returns the embedded callable.

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput in)
                  throws IOException,
                         ClassNotFoundException

Specified by:

readExternal in interface Externalizable

Throws:

IOException

ClassNotFoundException