graphql-java/src/main/java/graphql/schema/Coercing.java at master · HKMOpen/graphql-java

31 lines (25 loc) · 667 Bytes

package graphql.schema;

public interface Coercing {

/**

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

* @param input is never null

* @return null if not possible/invalid

Object serialize(Object input);

/**

* Called to resolve a input from a variable.

* Null if not possible.

* @param input is never null

* @return null if not possible/invalid

Object parseValue(Object input);

/**

* Called to convert a AST node

* @param input is never null

* @return null if not possible/invalid

Object parseLiteral(Object input);

}

Provide feedback