graphql.language

Class AstValueHelper

java.lang.Object

graphql.language.AstValueHelper

public class AstValueHelper
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
AstValueHelper()

Method Summary

Modifier and Type	Method and Description
static Value<?>	astFromValue(java.lang.Object value, GraphQLType type) Produces a GraphQL Value AST given a Java value.
static Value<?>	valueFromAst(java.lang.String astLiteral) Parses an AST value literal into the correct Value which MUST be of the correct shape eg '"string"' or 'true' or '1' or '{ "object", "form" }' or '[ "array", "form" ]' otherwise an exception is thrown

Methods inherited from class java.lang.Object

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

Constructor Detail

AstValueHelper

public AstValueHelper()

Method Detail

astFromValue

public static Value<?> astFromValue(java.lang.Object value,
                                    GraphQLType type)

Produces a GraphQL Value AST given a Java value.

A GraphQL type must be provided, which will be used to interpret different Java values.

 |      Value    | GraphQL Value        |
 | ------------- | -------------------- |
 | Object        | Input Object         |
 | Array         | List                 |
 | Boolean       | Boolean              |
 | String        | String / Enum Value  |
 | Number        | Int / Float          |
 | Mixed         | Enum Value           |
 

Parameters:

value - - the java value to be converted into graphql ast

type - the graphql type of the object

Returns:

a grapql language ast Value

valueFromAst

public static Value<?> valueFromAst(java.lang.String astLiteral)

Parses an AST value literal into the correct Value which MUST be of the correct shape eg '"string"' or 'true' or '1' or '{ "object", "form" }' or '[ "array", "form" ]' otherwise an exception is thrown

Parameters:

astLiteral - the string to parse an AST literal

Returns:

a valid Value

Throws:

AssertException - if the input can be parsed