Package com.oracle.coherence.concurrent.executor

Class StandardExecutionStrategy

java.lang.Object

com.oracle.coherence.concurrent.executor.StandardExecutionStrategy

All Implemented Interfaces:

ExecutionStrategy, com.tangosol.io.ExternalizableLite, com.tangosol.io.pof.PortableObject, Serializable

public class StandardExecutionStrategy
extends Object
implements ExecutionStrategy, com.tangosol.io.pof.PortableObject

An ExecutionStrategy that creates ExecutionPlans for executing a Task on a number of available Executors that satisfy a specified Remote.Predicate.

Since:

21.12

Author:

bo

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface com.oracle.coherence.concurrent.executor.ExecutionStrategy

ExecutionStrategy.EvaluationRationale

Field Summary

Fields

Modifier and Type	Field	Description
protected int	m_cDesiredExecutors	The number of Executors to choose to execute a Task.
protected boolean	m_fPerformConcurrently	Should the ExecutionPlan schedule the Task for execution concurrently or sequentially?
protected com.tangosol.util.function.Remote.Predicate<? super TaskExecutorService.ExecutorInfo>	m_predicate	The Remote.Predicate that must be satisfied by Executor to be a candidate for executing a Task.

Constructor Summary

Constructors

Constructor	Description
StandardExecutionStrategy()	Constructs a StandardExecutionStrategy (required for serialization).
StandardExecutionStrategy(int cDesiredExecutors, com.tangosol.util.function.Remote.Predicate<? super TaskExecutorService.ExecutorInfo> predicate, boolean fConcurrentExecution)	Constructs a StandardExecutionStrategy.

Method Summary

Modifier and Type	Method	Description
ExecutionPlan	analyze(ExecutionPlan currentPlan, Map<String,? extends TaskExecutorService.ExecutorInfo> mapExecutorInfo, EnumSet<ExecutionStrategy.EvaluationRationale> rationales)	Analyzes the current ExecutionPlan for a Task, together with the TaskExecutorService.ExecutorInfo to produce a new ExecutionPlan.
void	readExternal(com.tangosol.io.pof.PofReader in)
void	readExternal(DataInput in)
void	writeExternal(com.tangosol.io.pof.PofWriter out)
void	writeExternal(DataOutput out)

Methods inherited from class java.lang.Object

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

Field Detail

m_cDesiredExecutors

protected int m_cDesiredExecutors

The number of Executors to choose to execute a Task.

m_predicate

protected com.tangosol.util.function.Remote.Predicate<? super TaskExecutorService.ExecutorInfo> m_predicate

The Remote.Predicate that must be satisfied by Executor to be a candidate for executing a Task.

m_fPerformConcurrently

protected boolean m_fPerformConcurrently

Should the ExecutionPlan schedule the Task for execution concurrently or sequentially? The default is concurrently.

Constructor Detail

StandardExecutionStrategy

public StandardExecutionStrategy()

Constructs a StandardExecutionStrategy (required for serialization).

StandardExecutionStrategy

public StandardExecutionStrategy(int cDesiredExecutors,
                                 com.tangosol.util.function.Remote.Predicate<? super TaskExecutorService.ExecutorInfo> predicate,
                                 boolean fConcurrentExecution)

Constructs a StandardExecutionStrategy.

Parameters:

cDesiredExecutors - the number of Executors to execute the Task (-1 means all available)

predicate - the Remote.Predicate to determine if an Executor is a candidate for executing a Task based on the TaskExecutorService.ExecutorInfo

fConcurrentExecution - should the produced ExecutionPlan assign the Task to Executors concurrently?

Method Detail

analyze

public ExecutionPlan analyze(ExecutionPlan currentPlan,
                             Map<String,? extends TaskExecutorService.ExecutorInfo> mapExecutorInfo,
                             EnumSet<ExecutionStrategy.EvaluationRationale> rationales)

Description copied from interface: ExecutionStrategy

Analyzes the current ExecutionPlan for a Task, together with the TaskExecutorService.ExecutorInfo to produce a new ExecutionPlan.

Specified by:

analyze in interface ExecutionStrategy

Parameters:

currentPlan - the current ExecutionPlan (null when undefined)

mapExecutorInfo - a read-only Map of the current TaskExecutorService.ExecutorInfo, one for each registered Executor, keyed by the Executor id

rationales - the ExecutionStrategy.EvaluationRationales for evaluating the ExecutionStrategy

Returns:

new ExecutionPlan

readExternal

public void readExternal(DataInput in)
                  throws IOException

Specified by:

readExternal in interface com.tangosol.io.ExternalizableLite

Throws:

IOException

writeExternal

public void writeExternal(DataOutput out)
                   throws IOException

Specified by:

writeExternal in interface com.tangosol.io.ExternalizableLite

Throws:

IOException

readExternal

public void readExternal(com.tangosol.io.pof.PofReader in)
                  throws IOException

Specified by:

readExternal in interface com.tangosol.io.pof.PortableObject

Throws:

IOException

writeExternal

public void writeExternal(com.tangosol.io.pof.PofWriter out)
                   throws IOException

Specified by:

writeExternal in interface com.tangosol.io.pof.PortableObject

Throws:

IOException