Package io.deephaven.engine.util

Class PythonEvaluatorJpy

java.lang.Object

io.deephaven.engine.util.PythonEvaluatorJpy

All Implemented Interfaces:

PythonEvaluator

public class PythonEvaluatorJpy
extends Object
implements PythonEvaluator

The sole implementation of the PythonEvaluator, using Jpy to create a cpython interpreter instance inside of our JVM. Each evaluator has their own copy of the globals.

Method Summary

Modifier and Type	Method	Description
void	evalScript(String s)	Evaluate the provided statements.
void	evalStatement(String s)	Evaluate the provided statement.
String	getPythonVersion()	Gets the Python interpreter version string.
PythonScopeJpyImpl	getScope()
void	runScript(String scriptFile)	Runs a Python script.
void	set(String name, Object value)	Sets the variable within our session.
static PythonEvaluatorJpy	withGlobalCopy()
static PythonEvaluatorJpy	withGlobals()

Methods inherited from class java.lang.Object

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

Method Details

withGlobalCopy

public static PythonEvaluatorJpy withGlobalCopy()
                                         throws IOException,
InterruptedException,
TimeoutException

Throws:

IOException

InterruptedException

TimeoutException

withGlobals

public static PythonEvaluatorJpy withGlobals()
                                      throws IOException,
InterruptedException,
TimeoutException

Throws:

IOException

InterruptedException

TimeoutException

getScope

public PythonScopeJpyImpl getScope()

evalStatement

public void evalStatement(String s)

Description copied from interface: PythonEvaluator

Evaluate the provided statement. Not suitable for use with scripts; because multiple statements will be ignored.

Specified by:

evalStatement in interface PythonEvaluator

Parameters:

s - the string to evaluate

evalScript

public void evalScript(String s)

Description copied from interface: PythonEvaluator

Evaluate the provided statements. If you've got a multi-line script; you must use this version.

Specified by:

evalScript in interface PythonEvaluator

Parameters:

s - the string to evaluate

runScript

public void runScript(String scriptFile)
               throws FileNotFoundException

Description copied from interface: PythonEvaluator

Runs a Python script.

Specified by:

runScript in interface PythonEvaluator

Parameters:

scriptFile - the file to execute

Throws:

FileNotFoundException - if scriptFile was not found

getPythonVersion

public String getPythonVersion()

Description copied from interface: PythonEvaluator

Gets the Python interpreter version string.

Specified by:

getPythonVersion in interface PythonEvaluator

Returns:

The Python interpreter version string.

set

public void set(String name,
 Object value)

Description copied from interface: PythonEvaluator

Sets the variable within our session.

Specified by:

set in interface PythonEvaluator

Parameters:

name - the name of the variable to set.

value - the value of the variable.