net.obvj.jep

Class JEPContextFactory

java.lang.Object

net.obvj.jep.JEPContextFactory

public class JEPContextFactory
extends Object

A factory that creates JEP objects with extended functions and operators.

Author:

oswaldo.bapvic.jr

Method Summary

Modifier and Type	Method and Description
static void	addCustomFunctions(org.nfunk.jep.JEP jep) Registers custom functions and operators into a preset JEP object.
static void	addVariables(org.nfunk.jep.JEP jep, Map<String,Object> contextMap) Adds all entries from the contextMap as variables to the JEP context.
static org.nfunk.jep.JEP	newContext() Creates a new JEP object with all custom functions and operators available.
static org.nfunk.jep.JEP	newContext(Map<String,Object> contextMap) Creates a new JEP object with all custom functions and operators available, and a collection of initial variables.
static org.nfunk.jep.JEP	newContext(Map<String,Object> contextMap, boolean traverse, boolean allowUndeclared, boolean implicitMultiplication, org.nfunk.jep.type.NumberFactory numberFactory) Creates a new JEP object with all custom functions and operators available, a collection of initial variables, and custom parameters.

Methods inherited from class java.lang.Object

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

Method Detail

newContext

public static org.nfunk.jep.JEP newContext()

Creates a new JEP object with all custom functions and operators available.

Returns:

a JEP object

newContext

public static org.nfunk.jep.JEP newContext(Map<String,Object> contextMap)

Creates a new JEP object with all custom functions and operators available, and a collection of initial variables.

Parameters:

contextMap - a map of variables to be used by the evaluation context; can be null

Returns:

a JEP object with a collection of initial variables available

newContext

public static org.nfunk.jep.JEP newContext(Map<String,Object> contextMap,
                                           boolean traverse,
                                           boolean allowUndeclared,
                                           boolean implicitMultiplication,
                                           org.nfunk.jep.type.NumberFactory numberFactory)

Creates a new JEP object with all custom functions and operators available, a collection of initial variables, and custom parameters.

Parameters:

contextMap - a map of variables to be used by the evaluation context; can be null

traverse - an optional to print expression trees (useful for debug)

allowUndeclared - the "allow undeclared variables" option

implicitMultiplication - the "implicit multiplication" option

numberFactory - the number factory to be used

Returns:

a new JEP object with custom functions and operators registered

addCustomFunctions

public static void addCustomFunctions(org.nfunk.jep.JEP jep)

Registers custom functions and operators into a preset JEP object.

Parameters:

jep - the JEP object to which custom functions and operations will be registered

addVariables

public static void addVariables(org.nfunk.jep.JEP jep,
                                Map<String,Object> contextMap)

Adds all entries from the contextMap as variables to the JEP context.

Parameters:

jep - the JEP object to be filled with variables

contextMap - a map of variables to be used by the evaluation context