com.jaxfront.core.rule
Class MathEvaluator

java.lang.Object
  com.jaxfront.core.rule.MathEvaluator

public class MathEvaluator
extends java.lang.Object

MathEvaluator provides a simple mechanism to evaluate algebraic expressions. It uses and extends the JEP Parser hosted by sourcefourge.net. Only with the MathEvaluator.class it's possible to use nodeFunctions! NodeFunctions are functions that uses Nodes (Types) referenced by a TypePath.

See Also:

JEP

Nested Class Summary

class

MathEvaluator.MathCommunicator

Field Summary

int	_callCount
static java.lang.String	MATH_EVALUATOR_ARGUMENT_PREFIX
static java.lang.String	MATH_VAR_ABSTRACT_GROUP_IDS
static java.lang.String	MATH_VAR_ABSTRACT_GROUP_UUIDS
static java.lang.String	MATH_VAR_APPLICATION
static java.lang.String	MATH_VAR_BASE_GROUP_IDS
static java.lang.String	MATH_VAR_BASE_GROUP_UUIDS
static java.lang.String	MATH_VAR_BASE_GROUPS
static java.lang.String	MATH_VAR_DEPUTY_FROM_IDS
static java.lang.String	MATH_VAR_DEPUTY_IDS
static java.lang.String	MATH_VAR_DIRECT_PARENT_GROUP
static java.lang.String	MATH_VAR_DOM_ID
static java.lang.String	MATH_VAR_DOMHANDLER
static java.lang.String	MATH_VAR_ESURVEY_ID
static java.lang.String	MATH_VAR_FALSE
static java.lang.String	MATH_VAR_FORM_ID
static java.lang.String	MATH_VAR_GROUP_IDS
static java.lang.String	MATH_VAR_GROUP_NAMES
static java.lang.String	MATH_VAR_GROUP_UUID_IDS
static java.lang.String	MATH_VAR_GROUP_UUIDS
static java.lang.String	MATH_VAR_GROUPS
static java.lang.String	MATH_VAR_HISTORY_PARTICIPANTS
static java.lang.String	MATH_VAR_HTTP_SESSION
static java.lang.String	MATH_VAR_ICONNECTIONMANAGER
static java.lang.String	MATH_VAR_JEP_FUNCTIONS
static java.lang.String	MATH_VAR_LANGUAGES
static java.lang.String	MATH_VAR_MANDANT
static java.lang.String	MATH_VAR_MANDANT_ID
static java.lang.String	MATH_VAR_MANDANT_NAME
static java.lang.String	MATH_VAR_MATH_EVALUATOR
static java.lang.String	MATH_VAR_NA_N
static java.lang.String	MATH_VAR_NLS_LANGUAGE_SEQUENCE
static java.lang.String	MATH_VAR_NULL
static java.lang.String	MATH_VAR_OS_NAME
static java.lang.String	MATH_VAR_PARAM_FALSE
static java.lang.String	MATH_VAR_PARAM_TRUE
static java.lang.String	MATH_VAR_PARENT_GROUP_ID
static java.lang.String	MATH_VAR_PARENT_GROUPS
static java.lang.String	MATH_VAR_PARENT_GROUPS_IDS
static java.lang.String	MATH_VAR_PIDS
static java.lang.String	MATH_VAR_SYSTEM_FORM_IDS
static java.lang.String	MATH_VAR_SYSTEM_NAME
static java.lang.String	MATH_VAR_TRUE
static java.lang.String	MATH_VAR_USER
static java.lang.String	MATH_VAR_USER_COUNTRY
static java.lang.String	MATH_VAR_USER_EMAIL
static java.lang.String	MATH_VAR_USER_HOME
static java.lang.String	MATH_VAR_USER_ID
static java.lang.String	MATH_VAR_USER_LANGUAGE
static java.lang.Object	MATH_VAR_USER_LAST_LOGIN_TIME
static java.lang.Object	MATH_VAR_USER_LOGIN_TIME
static java.lang.String	MATH_VAR_USER_NAME
static java.lang.String	MATH_VAR_USER_ROLE
static java.lang.String	MATH_VAR_USER_TIMEZONE
static java.lang.String	MATH_VAR_USER_UUID
static java.lang.String	MATH_VAR_USER_UUID_ID
static java.lang.String	MATH_VAR_UUID
static java.lang.String	MATH_VAR_WORKFLOW_FAILED_STATE
static java.lang.String	MATH_VAR_WORKFLOW_SUCESS_STATE
static java.lang.String	MATH_VAR_XUI_LANGUAGE
long	timeConsumption

Constructor Summary

MathEvaluator(java.util.Hashtable initVars)

Method Summary

double	evaluate(java.lang.String expression, MathEvaluator.MathCommunicator communicator) Evaluate a simple algebraic expression
double	evaluate(Type formulaRoot, java.lang.String expression) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
double	evaluate(Type formulaRoot, java.lang.String expression, boolean includeOnlySerializable) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
double	evaluate(Type formulaRoot, Type eventSource, java.lang.String expression, boolean includeOnlySerializable) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
boolean	evaluateBoolean(java.lang.String expression, MathEvaluator.MathCommunicator communicator) Evaluate a simple algebraic expression.
boolean	evaluateBoolean(Type formulaRoot, java.lang.String expression) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
boolean	evaluateBoolean(Type formulaRoot, java.lang.String expression, boolean includeOnlySerializable) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
boolean	evaluateBoolean(Type formulaRoot, Type eventSource, java.lang.Object event, java.lang.String expression, boolean includeOnlySerializable) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.lang.String	evaluateExternal(Type formulaRoot, java.lang.String expression)
java.lang.String	evaluateExternal(Type formulaRoot, java.lang.String expression, java.util.Map userObjs)
java.lang.String	evaluateExternalCaught(Type formulaRoot, java.lang.String expression, java.util.Map userObjs)
boolean	evaluateExternalOK(Type formulaRoot, java.lang.String expression) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
boolean	evaluateExternalOK(Type formulaRoot, java.lang.String expression, java.util.Map userObjects) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.lang.Object	evaluateObject(java.lang.String expression, MathEvaluator.MathCommunicator com) Evaluate a simple algebraic expression.
java.lang.Object	evaluateObject(Type formulaRoot, java.lang.String expression) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.lang.Object	evaluateObject(Type formulaRoot, java.lang.String expression, boolean includeOnlySerializable) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.lang.Object	evaluateObject(Type formulaRoot, Type eventSource, java.lang.Object event, java.lang.String expression, boolean includeOnlySerializable) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.util.HashSet	evaluateReferencedNodes(Type formulaRoot, java.lang.String expression) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.util.HashSet	evaluateReferencedNodes(Type formulaRoot, java.lang.String expression, boolean edTypeIncl)
java.lang.String	evaluateString(java.lang.String expression, MathEvaluator.MathCommunicator com) Evaluate a simple algebraic expression.
java.lang.String	evaluateString(Type formulaRoot, java.lang.Object eventSource, java.lang.Object event, java.lang.String expression, boolean includeOnlySerializable, java.util.List targetTypes) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.lang.String	evaluateString(Type formulaRoot, java.lang.String expression) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.lang.String	evaluateString(Type formulaRoot, java.lang.String expression, boolean includeOnlySerializable) Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions
java.lang.Object	evaluateUser(java.lang.String expression, Type aBaseType) Evaluate a simple algebraic expression.
static java.util.Properties	evaluateUserProperties(IUser user)
java.lang.String	evaluateUserString(java.lang.String expression, MathEvaluator.MathCommunicator com) Evaluate a simple algebraic expression.
java.lang.String	evaluateUserString(java.lang.String expression, Type aBaseType) Evaluate a simple algebraic expression.
int	getCalls()
java.util.Stack	getCallStack()
java.lang.String	getErrorInfo()
static java.util.Hashtable	getExternalFunctions()
java.net.URL	getFunctionsURL()
java.net.URL	getFunctionsXSD()
static MathEvaluator	getInstance() Returns a new instance of the MathEvaluator
java.util.Hashtable	getNodeFunctionNames()
java.util.Enumeration	getRegisteredFunctions() Parses the current expression in the exprField.
java.util.Hashtable	getVariables()
void	initExternalFunctions()
void	initExternalFunctions(org.w3c.dom.Document doc, boolean cache)
boolean	isDebug()
org.nfunk.jep.function.PostfixMathCommandI	registerFunction(java.lang.String functionImplementorClass, java.lang.String functionName, java.lang.String isNodeFunction)
static void	release()
static java.lang.String	serializeProperties(java.util.Map props)
void	setDebug(boolean _debug)
void	setVariable(java.lang.String name, java.lang.Object value) This method set a simple variable to JEP!
void	setVariables(java.util.Map variables) This method set variables to JEP!
static java.lang.Object	translateVar(java.util.Map vars, java.lang.String aValue)
static java.lang.String	translateVar(java.lang.String text, java.util.Map varMap)
static java.lang.String	translateVar(java.lang.String text, java.util.Map varMap, MathEvaluator math)
static java.lang.String	translateVar(java.lang.String text, MathEvaluator math)
static java.lang.String	translateVar(java.lang.String text, Type aType)
static java.lang.String	translateVar(Type aType, java.lang.String aValue, IUser user, java.util.Map vars, MathEvaluator math)
static java.lang.String	translateVar(Type aType, java.lang.String text, java.util.Map varMap, MathEvaluator math)
static java.lang.String	translateVars(java.util.Map vars, java.lang.String aValue)

Methods inherited from class java.lang.Object

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

Field Detail

_callCount

public int _callCount

MATH_EVALUATOR_ARGUMENT_PREFIX

public static final java.lang.String MATH_EVALUATOR_ARGUMENT_PREFIX

See Also:

Constant Field Values

MATH_VAR_ABSTRACT_GROUP_IDS

public static final java.lang.String MATH_VAR_ABSTRACT_GROUP_IDS

See Also:

Constant Field Values

MATH_VAR_ABSTRACT_GROUP_UUIDS

public static final java.lang.String MATH_VAR_ABSTRACT_GROUP_UUIDS

See Also:

Constant Field Values

MATH_VAR_APPLICATION

public static final java.lang.String MATH_VAR_APPLICATION

See Also:

Constant Field Values

MATH_VAR_BASE_GROUP_IDS

public static final java.lang.String MATH_VAR_BASE_GROUP_IDS

See Also:

Constant Field Values

MATH_VAR_BASE_GROUP_UUIDS

public static final java.lang.String MATH_VAR_BASE_GROUP_UUIDS

See Also:

Constant Field Values

MATH_VAR_BASE_GROUPS

public static final java.lang.String MATH_VAR_BASE_GROUPS

See Also:

Constant Field Values

MATH_VAR_DEPUTY_FROM_IDS

public static final java.lang.String MATH_VAR_DEPUTY_FROM_IDS

See Also:

Constant Field Values

MATH_VAR_DEPUTY_IDS

public static final java.lang.String MATH_VAR_DEPUTY_IDS

See Also:

Constant Field Values

MATH_VAR_DIRECT_PARENT_GROUP

public static final java.lang.String MATH_VAR_DIRECT_PARENT_GROUP

See Also:

Constant Field Values

MATH_VAR_DOM_ID

public static final java.lang.String MATH_VAR_DOM_ID

See Also:

Constant Field Values

MATH_VAR_DOMHANDLER

public static final java.lang.String MATH_VAR_DOMHANDLER

See Also:

Constant Field Values

MATH_VAR_ESURVEY_ID

public static final java.lang.String MATH_VAR_ESURVEY_ID

See Also:

Constant Field Values

MATH_VAR_FALSE

public static final java.lang.String MATH_VAR_FALSE

See Also:

Constant Field Values

MATH_VAR_FORM_ID

public static final java.lang.String MATH_VAR_FORM_ID

See Also:

Constant Field Values

MATH_VAR_GROUP_IDS

public static final java.lang.String MATH_VAR_GROUP_IDS

See Also:

Constant Field Values

MATH_VAR_GROUP_NAMES

public static final java.lang.String MATH_VAR_GROUP_NAMES

See Also:

Constant Field Values

MATH_VAR_GROUP_UUID_IDS

public static final java.lang.String MATH_VAR_GROUP_UUID_IDS

See Also:

Constant Field Values

MATH_VAR_GROUP_UUIDS

public static final java.lang.String MATH_VAR_GROUP_UUIDS

See Also:

Constant Field Values

MATH_VAR_GROUPS

public static final java.lang.String MATH_VAR_GROUPS

See Also:

Constant Field Values

MATH_VAR_HISTORY_PARTICIPANTS

public static final java.lang.String MATH_VAR_HISTORY_PARTICIPANTS

See Also:

Constant Field Values

MATH_VAR_HTTP_SESSION

public static final java.lang.String MATH_VAR_HTTP_SESSION

See Also:

Constant Field Values

MATH_VAR_ICONNECTIONMANAGER

public static final java.lang.String MATH_VAR_ICONNECTIONMANAGER

See Also:

Constant Field Values

MATH_VAR_JEP_FUNCTIONS

public static final java.lang.String MATH_VAR_JEP_FUNCTIONS

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Constant Field Values

MATH_VAR_LANGUAGES

public static final java.lang.String MATH_VAR_LANGUAGES

See Also:

Constant Field Values

MATH_VAR_MANDANT

public static final java.lang.String MATH_VAR_MANDANT

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Constant Field Values

MATH_VAR_MANDANT_ID

public static final java.lang.String MATH_VAR_MANDANT_ID

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Constant Field Values

MATH_VAR_MANDANT_NAME

public static final java.lang.String MATH_VAR_MANDANT_NAME

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Constant Field Values

MATH_VAR_MATH_EVALUATOR

public static final java.lang.String MATH_VAR_MATH_EVALUATOR

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Constant Field Values

MATH_VAR_NA_N

public static final java.lang.String MATH_VAR_NA_N

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Constant Field Values

MATH_VAR_NLS_LANGUAGE_SEQUENCE

public static final java.lang.String MATH_VAR_NLS_LANGUAGE_SEQUENCE

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Constant Field Values

MATH_VAR_NULL

public static final java.lang.String MATH_VAR_NULL

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Constant Field Values

MATH_VAR_OS_NAME

public static final java.lang.String MATH_VAR_OS_NAME

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Constant Field Values

MATH_VAR_PARAM_FALSE

public static final java.lang.String MATH_VAR_PARAM_FALSE

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Constant Field Values

MATH_VAR_PARAM_TRUE

public static final java.lang.String MATH_VAR_PARAM_TRUE

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Constant Field Values

MATH_VAR_PARENT_GROUP_ID

public static final java.lang.String MATH_VAR_PARENT_GROUP_ID

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Constant Field Values

MATH_VAR_PARENT_GROUPS

public static final java.lang.String MATH_VAR_PARENT_GROUPS

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Constant Field Values

MATH_VAR_PARENT_GROUPS_IDS

public static final java.lang.String MATH_VAR_PARENT_GROUPS_IDS

See Also:

Constant Field Values

MATH_VAR_PIDS

public static final java.lang.String MATH_VAR_PIDS

See Also:

Constant Field Values

MATH_VAR_SYSTEM_FORM_IDS

public static final java.lang.String MATH_VAR_SYSTEM_FORM_IDS

See Also:

Constant Field Values

MATH_VAR_SYSTEM_NAME

public static final java.lang.String MATH_VAR_SYSTEM_NAME

See Also:

Constant Field Values

MATH_VAR_TRUE

public static final java.lang.String MATH_VAR_TRUE

See Also:

Constant Field Values

MATH_VAR_USER

public static final java.lang.String MATH_VAR_USER

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Constant Field Values

MATH_VAR_USER_COUNTRY

public static final java.lang.String MATH_VAR_USER_COUNTRY

See Also:

Constant Field Values

MATH_VAR_USER_EMAIL

public static final java.lang.String MATH_VAR_USER_EMAIL

See Also:

Constant Field Values

MATH_VAR_USER_HOME

public static final java.lang.String MATH_VAR_USER_HOME

See Also:

Constant Field Values

MATH_VAR_USER_ID

public static final java.lang.String MATH_VAR_USER_ID

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Constant Field Values

MATH_VAR_USER_LANGUAGE

public static final java.lang.String MATH_VAR_USER_LANGUAGE

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Constant Field Values

MATH_VAR_USER_LAST_LOGIN_TIME

public static final java.lang.Object MATH_VAR_USER_LAST_LOGIN_TIME

MATH_VAR_USER_LOGIN_TIME

public static final java.lang.Object MATH_VAR_USER_LOGIN_TIME

MATH_VAR_USER_NAME

public static final java.lang.String MATH_VAR_USER_NAME

See Also:

Constant Field Values

MATH_VAR_USER_ROLE

public static final java.lang.String MATH_VAR_USER_ROLE

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Constant Field Values

MATH_VAR_USER_TIMEZONE

public static final java.lang.String MATH_VAR_USER_TIMEZONE

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Constant Field Values

MATH_VAR_USER_UUID

public static final java.lang.String MATH_VAR_USER_UUID

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Constant Field Values

MATH_VAR_USER_UUID_ID

public static final java.lang.String MATH_VAR_USER_UUID_ID

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Constant Field Values

MATH_VAR_UUID

public static final java.lang.String MATH_VAR_UUID

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Constant Field Values

MATH_VAR_WORKFLOW_FAILED_STATE

public static final java.lang.String MATH_VAR_WORKFLOW_FAILED_STATE

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Constant Field Values

MATH_VAR_WORKFLOW_SUCESS_STATE

public static final java.lang.String MATH_VAR_WORKFLOW_SUCESS_STATE

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Constant Field Values

MATH_VAR_XUI_LANGUAGE

public static final java.lang.String MATH_VAR_XUI_LANGUAGE

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Constant Field Values

timeConsumption

public long timeConsumption

Constructor Detail

MathEvaluator

public MathEvaluator(java.util.Hashtable initVars)

Method Detail

evaluate

public double evaluate(java.lang.String expression,
                       MathEvaluator.MathCommunicator communicator)
                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression

Returns:

double result

Throws:

org.nfunk.jep.ParseException

evaluate

public double evaluate(Type formulaRoot,
                       java.lang.String expression)
                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

double result

Throws:

org.nfunk.jep.ParseException

evaluate

public double evaluate(Type formulaRoot,
                       java.lang.String expression,
                       boolean includeOnlySerializable)
                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

double result

Throws:

org.nfunk.jep.ParseException

evaluate

public double evaluate(Type formulaRoot,
                       Type eventSource,
                       java.lang.String expression,
                       boolean includeOnlySerializable)
                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

double result

Throws:

org.nfunk.jep.ParseException

evaluateBoolean

public boolean evaluateBoolean(java.lang.String expression,
                               MathEvaluator.MathCommunicator communicator)
                        throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression.

Returns:

boolean true/false

Throws:

org.nfunk.jep.ParseException

evaluateBoolean

public boolean evaluateBoolean(Type formulaRoot,
                               java.lang.String expression)
                        throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

boolean true/false

Throws:

org.nfunk.jep.ParseException

evaluateBoolean

public boolean evaluateBoolean(Type formulaRoot,
                               java.lang.String expression,
                               boolean includeOnlySerializable)
                        throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

boolean true/false

Throws:

org.nfunk.jep.ParseException

evaluateBoolean

public boolean evaluateBoolean(Type formulaRoot,
                               Type eventSource,
                               java.lang.Object event,
                               java.lang.String expression,
                               boolean includeOnlySerializable)
                        throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

boolean true/false

Throws:

org.nfunk.jep.ParseException

evaluateExternal

public java.lang.String evaluateExternal(Type formulaRoot,
                                         java.lang.String expression)
                                  throws java.lang.Exception

Throws:

java.lang.Exception

evaluateExternal

public java.lang.String evaluateExternal(Type formulaRoot,
                                         java.lang.String expression,
                                         java.util.Map userObjs)
                                  throws java.lang.Exception

Throws:

java.lang.Exception

evaluateExternalCaught

public java.lang.String evaluateExternalCaught(Type formulaRoot,
                                               java.lang.String expression,
                                               java.util.Map userObjs)

evaluateExternalOK

public boolean evaluateExternalOK(Type formulaRoot,
                                  java.lang.String expression)

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

double result

evaluateExternalOK

public boolean evaluateExternalOK(Type formulaRoot,
                                  java.lang.String expression,
                                  java.util.Map userObjects)

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

double result

evaluateObject

public java.lang.Object evaluateObject(java.lang.String expression,
                                       MathEvaluator.MathCommunicator com)
                                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression.

Returns:

Object result

Throws:

org.nfunk.jep.ParseException

evaluateObject

public java.lang.Object evaluateObject(Type formulaRoot,
                                       java.lang.String expression)
                                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

Object result

Throws:

org.nfunk.jep.ParseException

evaluateObject

public java.lang.Object evaluateObject(Type formulaRoot,
                                       java.lang.String expression,
                                       boolean includeOnlySerializable)
                                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

Object result

Throws:

org.nfunk.jep.ParseException

evaluateObject

public java.lang.Object evaluateObject(Type formulaRoot,
                                       Type eventSource,
                                       java.lang.Object event,
                                       java.lang.String expression,
                                       boolean includeOnlySerializable)
                                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

Object result

Throws:

org.nfunk.jep.ParseException

evaluateReferencedNodes

public java.util.HashSet evaluateReferencedNodes(Type formulaRoot,
                                                 java.lang.String expression)
                                          throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

double result

Throws:

org.nfunk.jep.ParseException

evaluateReferencedNodes

public java.util.HashSet evaluateReferencedNodes(Type formulaRoot,
                                                 java.lang.String expression,
                                                 boolean edTypeIncl)
                                          throws org.nfunk.jep.ParseException

Throws:

org.nfunk.jep.ParseException

evaluateString

public java.lang.String evaluateString(java.lang.String expression,
                                       MathEvaluator.MathCommunicator com)
                                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression.

Returns:

Object result

Throws:

org.nfunk.jep.ParseException

evaluateString

public java.lang.String evaluateString(Type formulaRoot,
                                       java.lang.Object eventSource,
                                       java.lang.Object event,
                                       java.lang.String expression,
                                       boolean includeOnlySerializable,
                                       java.util.List targetTypes)
                                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

String result

Throws:

org.nfunk.jep.ParseException

evaluateString

public java.lang.String evaluateString(Type formulaRoot,
                                       java.lang.String expression)
                                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

String result

Throws:

org.nfunk.jep.ParseException

evaluateString

public java.lang.String evaluateString(Type formulaRoot,
                                       java.lang.String expression,
                                       boolean includeOnlySerializable)
                                throws org.nfunk.jep.ParseException

Evaluate a simple algebraic expression and set a new formulaRoot for nodeFunctions

Returns:

String result

Throws:

org.nfunk.jep.ParseException

evaluateUser

public java.lang.Object evaluateUser(java.lang.String expression,
                                     Type aBaseType)

Evaluate a simple algebraic expression.

Returns:

Object result

evaluateUserProperties

public static java.util.Properties evaluateUserProperties(IUser user)

evaluateUserString

public java.lang.String evaluateUserString(java.lang.String expression,
                                           MathEvaluator.MathCommunicator com)

Evaluate a simple algebraic expression.

Returns:

Object result

evaluateUserString

public java.lang.String evaluateUserString(java.lang.String expression,
                                           Type aBaseType)

Evaluate a simple algebraic expression.

Returns:

Object result

getCalls

public int getCalls()

getCallStack

public java.util.Stack getCallStack()

getErrorInfo

public java.lang.String getErrorInfo()

getExternalFunctions

public static java.util.Hashtable getExternalFunctions()

getFunctionsURL

public java.net.URL getFunctionsURL()

getFunctionsXSD

public java.net.URL getFunctionsXSD()

getInstance

public static MathEvaluator getInstance()

Returns a new instance of the MathEvaluator

Returns:

com.jaxfront.core.rule.MathEvaluator

getNodeFunctionNames

public java.util.Hashtable getNodeFunctionNames()

getRegisteredFunctions

public java.util.Enumeration getRegisteredFunctions()

Parses the current expression in the exprField. This method also re-initializes the contents of the symbol and function tables. This is neccessary because the "allow undeclared variables" option adds variables from expressions to the symbol table.

getVariables

public java.util.Hashtable getVariables()

initExternalFunctions

public void initExternalFunctions()
                           throws org.apache.xerces.xni.parser.XMLParseException,
                                  org.xml.sax.SAXException,
                                  java.io.IOException

Throws:

org.apache.xerces.xni.parser.XMLParseException

org.xml.sax.SAXException

java.io.IOException

initExternalFunctions

public void initExternalFunctions(org.w3c.dom.Document doc,
                                  boolean cache)
                           throws org.apache.xerces.xni.parser.XMLParseException,
                                  org.xml.sax.SAXException,
                                  java.io.IOException

Throws:

org.apache.xerces.xni.parser.XMLParseException

org.xml.sax.SAXException

java.io.IOException

isDebug

public boolean isDebug()

registerFunction

public org.nfunk.jep.function.PostfixMathCommandI registerFunction(java.lang.String functionImplementorClass,
                                                                   java.lang.String functionName,
                                                                   java.lang.String isNodeFunction)

release

public static void release()

serializeProperties

public static java.lang.String serializeProperties(java.util.Map props)
                                            throws java.io.IOException

Throws:

java.io.IOException

setDebug

public void setDebug(boolean _debug)

setVariable

public void setVariable(java.lang.String name,
                        java.lang.Object value)

This method set a simple variable to JEP! The method take not care about datatypes.

Parameters:

variables - java.util.Hashtable

setVariables

public void setVariables(java.util.Map variables)

This method set variables to JEP! It takes the key value as variable name and variable value. The method take not care about datatypes.

Parameters:

variables - java.util.Hashtable

translateVar

public static java.lang.Object translateVar(java.util.Map vars,
                                            java.lang.String aValue)

translateVar

public static java.lang.String translateVar(java.lang.String text,
                                            java.util.Map varMap)

translateVar

public static java.lang.String translateVar(java.lang.String text,
                                            java.util.Map varMap,
                                            MathEvaluator math)

translateVar

public static java.lang.String translateVar(java.lang.String text,
                                            MathEvaluator math)

translateVar

public static java.lang.String translateVar(java.lang.String text,
                                            Type aType)

translateVar

public static java.lang.String translateVar(Type aType,
                                            java.lang.String aValue,
                                            IUser user,
                                            java.util.Map vars,
                                            MathEvaluator math)

translateVar

public static java.lang.String translateVar(Type aType,
                                            java.lang.String text,
                                            java.util.Map varMap,
                                            MathEvaluator math)

translateVars

public static java.lang.String translateVars(java.util.Map vars,
                                             java.lang.String aValue)