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GraphqL Java

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package graphql.execution.preparsed;

import graphql.GraphQLError;
import graphql.language.Document;

import java.util.Collections;
import java.util.List;
import java.util.Objects;

/**
 * An instance of a preparsed document entry represents the result of a query parse and validation, like
 * an either implementation it contains either the correct result in th document property or the errors.
 */
public class PreparsedDocumentEntry {
    private final Document document;
    private final List errors;

    public PreparsedDocumentEntry(Document document) {
        Objects.requireNonNull(document);
        this.document = document;
        this.errors = null;
    }

    public PreparsedDocumentEntry(List errors) {
        Objects.requireNonNull(errors);
        this.document = null;
        this.errors = errors;
    }

    public PreparsedDocumentEntry(GraphQLError error) {
        this(Collections.singletonList(Objects.requireNonNull(error)));
    }

    public Document getDocument() {
        return document;
    }

    public List getErrors() {
        return errors;
    }
    
    public boolean hasErrors() {
        return errors != null && !errors.isEmpty();
    }
}