graphql.schema

Interface Coercing

public interface Coercing

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	parseLiteral(java.lang.Object input) Called to convert a AST node
java.lang.Object	parseValue(java.lang.Object input) Called to resolve a input from a variable.
java.lang.Object	serialize(java.lang.Object input) Called to convert a result of a DataFetcher to a valid runtime value.

Method Detail

serialize

java.lang.Object serialize(java.lang.Object input)

Called to convert a result of a DataFetcher to a valid runtime value.

Parameters:

input - is never null

Returns:

null if not possible/invalid

parseValue

java.lang.Object parseValue(java.lang.Object input)

Called to resolve a input from a variable. Null if not possible.

Parameters:

input - is never null

Returns:

null if not possible/invalid

parseLiteral

java.lang.Object parseLiteral(java.lang.Object input)

Called to convert a AST node

Parameters:

input - is never null

Returns:

null if not possible/invalid