Constructor Summary

Method Summary

• Methods inherited from class java.lang.Object

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

Constructor Detail

• FailOverExecutionControlProvider

  public FailOverExecutionControlProvider​()

  Create an instance. The instance can be used to start and return an ExecutionControl instance by attempting to start a series of ExecutionControl specs, until one is successful.

  See Also:

  generate(jdk.jshell.spi.ExecutionEnv, java.util.Map)

Method Detail

• name

  public String name​()

  The unique name of this ExecutionControlProvider.

  Specified by:

  name in interface ExecutionControlProvider

  Returns:

  "failover"

• defaultParameters

  public Map<String,String> defaultParameters​()

  Create and return the default parameter map for this ExecutionControlProvider. There are ten parameters, "0" through "9", their values are ExecutionControlProvider specification strings, or empty string.

  Specified by:

  defaultParameters in interface ExecutionControlProvider

  Returns:

  a default parameter map

• generate

  public ExecutionControl generate​(ExecutionEnv env,
   Map<String,String> parameters)
   throws Throwable 

  Create and return a locally executing ExecutionControl instance. At least one parameter should have a spec.

  Specified by:

  generate in interface ExecutionControlProvider

  Parameters:

  env - the execution environment, provided by JShell

  parameters - the modified parameter map.

  Returns:

  the execution engine

  Throws:

  Throwable - if all the given providers fail, the exception that occurred on the first attempt to create the execution engine.