io.appform.hope.lang

Class HopeLangParser

java.lang.Object

io.appform.hope.lang.HopeLangParser

public class HopeLangParser
extends Object

Top level accessor for hope. Creation is expensive. Create and reuse.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	HopeLangParser.Builder

Method Summary

Modifier and Type	Method and Description
static HopeLangParser.Builder	builder() Create a builder for the parser.
boolean	evaluate(io.appform.hope.core.Evaluatable rule, com.fasterxml.jackson.databind.JsonNode node) Evaluate a hope lang parsed expression
io.appform.hope.core.Evaluatable	parse(String payload) Parse a hope lang string.

Methods inherited from class java.lang.Object

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

Method Detail

parse

public io.appform.hope.core.Evaluatable parse(String payload)
                                       throws io.appform.hope.core.exceptions.impl.HopeExpressionParserError

Parse a hope lang string. The resultant parsed rule can be reused for multiple evaluations.

Parameters:

payload - Parse a string

Returns:

An evaluatable expression tree

Throws:

io.appform.hope.core.exceptions.impl.HopeExpressionParserError

evaluate

public boolean evaluate(io.appform.hope.core.Evaluatable rule,
                        com.fasterxml.jackson.databind.JsonNode node)

Evaluate a hope lang parsed expression

Parameters:

rule - Parsed rule

node - JsonNode for which the match rule is to be evaluated

Returns:

true in case of match

builder

public static HopeLangParser.Builder builder()

Create a builder for the parser.

Returns:

An initialized builder.