Package com.api.jsonata4java.expressions.functions

Class EvalFunction

java.lang.Object

com.api.jsonata4java.expressions.functions.FunctionBase

com.api.jsonata4java.expressions.functions.EvalFunction

public class EvalFunction
extends FunctionBase

From http://docs.jsonata.org/string-functions.html: Signature: $eval(expr [, context]) Parses and evaluates the string expr which contains literal JSON or a JSONata expression using the current context as the context for evaluation. $eval("[1,2,3]") = [1, 2, 3] $eval('[1,$string(2),3]') = [1,"2",3]

Nested Class Summary

Nested classes/interfaces inherited from class com.api.jsonata4java.expressions.functions.FunctionBase

FunctionBase.CtxEvalResult

Field Summary

Fields

Modifier and Type	Field	Description
static String	ERR_ARG1BADTYPE
static String	ERR_ARG2BADTYPE
static String	ERR_BAD_CONTEXT

Constructor Summary

Constructors

Constructor	Description
EvalFunction()

Method Summary

Modifier and Type	Method	Description
int	getMaxArgs()
int	getMinArgs()
String	getSignature()
com.fasterxml.jackson.databind.JsonNode	invoke(ExpressionsVisitor expressionVisitor, MappingExpressionParser.Function_callContext ctx)

Methods inherited from class com.api.jsonata4java.expressions.functions.FunctionBase

evalContext, getArgumentCount, getFunctionName

Methods inherited from class java.lang.Object

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

Field Detail

ERR_BAD_CONTEXT

public static String ERR_BAD_CONTEXT

ERR_ARG2BADTYPE

public static String ERR_ARG2BADTYPE

ERR_ARG1BADTYPE

public static String ERR_ARG1BADTYPE

Constructor Detail

EvalFunction

public EvalFunction()

Method Detail

invoke

public com.fasterxml.jackson.databind.JsonNode invoke(ExpressionsVisitor expressionVisitor,
                                                      MappingExpressionParser.Function_callContext ctx)

Specified by:

invoke in class FunctionBase

getMaxArgs

public int getMaxArgs()

Specified by:

getMaxArgs in class FunctionBase

getMinArgs

public int getMinArgs()

Specified by:

getMinArgs in class FunctionBase

getSignature

public String getSignature()

Specified by:

getSignature in class FunctionBase