org.rosuda.REngine
Class REngine

java.lang.Object
  org.rosuda.REngine.REngine

public abstract class REngine
extends Object

Field Summary

protected static REngine

lastEngine last created engine or null if there is none

Constructor Summary

REngine()

Method Summary

abstract void	assign(String symbol, REXP value, REXP env)
static REngine	engineForClass(String klass) this is the designated constructor for REngine classes.
REXP	eval(String cmd)
abstract REXP	eval(String cmd, boolean copy)
abstract REXP	eval(String cmd, REXP[] args)
abstract REXP	get(String symbol, REXP env)
static REngine	getLastEngine() retrieve the last created engine
void	voidEval(String cmd)

Methods inherited from class java.lang.Object

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

Field Detail

lastEngine

protected static REngine lastEngine

last created engine or null if there is none

Constructor Detail

REngine

public REngine()

Method Detail

engineForClass

public static REngine engineForClass(String klass)
                              throws ClassNotFoundException,
                                     NoSuchMethodException,
                                     IllegalAccessException,
                                     InvocationTargetException

this is the designated constructor for REngine classes. It uses reflection to call createEngine method on the given REngine class.

Parameters:

klass - fully qualified class-name of a REngine implementation

Returns:

REngine implementation or null if createEngine invokation failed

Throws:

ClassNotFoundException

NoSuchMethodException

IllegalAccessException

InvocationTargetException

getLastEngine

public static REngine getLastEngine()

retrieve the last created engine

Returns:

last created engine or null if no engine was created yet

eval

public abstract REXP eval(String cmd,
                          boolean copy)
                   throws REngineException

Throws:

REngineException

eval

public abstract REXP eval(String cmd,
                          REXP[] args)
                   throws REngineException

Throws:

REngineException

assign

public abstract void assign(String symbol,
                            REXP value,
                            REXP env)
                     throws REngineException

Throws:

REngineException

get

public abstract REXP get(String symbol,
                         REXP env)
                  throws REngineException

Throws:

REngineException

eval

public REXP eval(String cmd)
          throws REngineException

Throws:

REngineException

voidEval

public void voidEval(String cmd)
              throws REngineException

Throws:

REngineException