Class LocalExecutionControlProvider

java.lang.Object

jdk.jshell.execution.LocalExecutionControlProvider

All Implemented Interfaces:: ExecutionControlProvider

public class LocalExecutionControlProvider extends Object implements ExecutionControlProvider

A provider of execution engines which run in the same process as JShell.

Since:: 9

Constructor Summary

Constructor	Description
`LocalExecutionControlProvider()`	Create an instance.

Method Summary

Modifier and Type	Method	Description
`ExecutionControl`	`createExecutionControl(ExecutionEnv env, Map<String,String> parameters)`	Create a new `ExecutionControl` instance.
`Map<String,String>`	`defaultParameters()`	Create and return the default parameter map for `LocalExecutionControlProvider`.
`ExecutionControl`	`generate(ExecutionEnv env, Map<String,String> parameters)`	Create and return a locally executing `ExecutionControl` instance.
`String`	`name()`	The unique name of this `ExecutionControlProvider`.

Methods declared in class Object

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

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

LocalExecutionControlProvider

public LocalExecutionControlProvider()

Create an instance. An instance can be used to generate an ExecutionControl instance that executes code in the same process.

Method Details

name

public String name()

The unique name of this ExecutionControlProvider.

Specified by:: name in interface ExecutionControlProvider
Returns:: "local"

defaultParameters

public Map<String,String> defaultParameters()

Create and return the default parameter map for LocalExecutionControlProvider. LocalExecutionControlProvider has no parameters.

Specified by:: defaultParameters in interface ExecutionControlProvider
Returns:: an empty parameter map

generate

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

Create and return a locally executing ExecutionControl instance.

Specified by:: generate in interface ExecutionControlProvider
Parameters:: env - the execution environment, provided by JShell; parameters - the default or modified parameter map.
Returns:: the execution engine

createExecutionControl

public ExecutionControl createExecutionControl(ExecutionEnv env, Map<String,String> parameters)

Create a new ExecutionControl instance.

This method is invoked by generate().

Parameters:: env - the ExecutionEnv for which the ExecutionControl should be created; parameters - the parameters that were passed to generate()
Returns:: the newly created ExecutionControl
Since:: 22

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