AbstractThriftMetadataBuilder.java 文件源码

/**
 * Assigns all fields an id if possible.  Fields are grouped by name and for each group, if there
 * is a single id, all fields in the group are assigned this id.  If the group has multiple ids,
 * an error is reported.
 */
protected final Set<String> inferThriftFieldIds()
{
    Set<String> fieldsWithConflictingIds = new HashSet<>();

    // group fields by explicit name or by name extracted from field, method or property
    Multimap<String, FieldMetadata> fieldsByExplicitOrExtractedName = Multimaps.index(fields, FieldMetadata::getOrExtractThriftFieldName);
    inferThriftFieldIds(fieldsByExplicitOrExtractedName, fieldsWithConflictingIds);

    // group fields by name extracted from field, method or property
    // this allows thrift name to be set explicitly without having to duplicate the name on getters and setters
    // todo should this be the only way this works?
    Multimap<String, FieldMetadata> fieldsByExtractedName = Multimaps.index(fields, FieldMetadata::extractName);
    inferThriftFieldIds(fieldsByExtractedName, fieldsWithConflictingIds);

    return fieldsWithConflictingIds;
}