diff options
Diffstat (limited to 'java/src/main/java/com/google/protobuf/Message.java')
| -rw-r--r-- | java/src/main/java/com/google/protobuf/Message.java | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/java/src/main/java/com/google/protobuf/Message.java b/java/src/main/java/com/google/protobuf/Message.java index 5673d3bb..5c75b58b 100644 --- a/java/src/main/java/com/google/protobuf/Message.java +++ b/java/src/main/java/com/google/protobuf/Message.java @@ -168,6 +168,25 @@ public interface Message extends MessageLite, MessageOrBuilder { Builder getFieldBuilder(Descriptors.FieldDescriptor field); /** + * Get a nested builder instance for the given repeated field instance. + * <p> + * Normally, we hold a reference to the immutable message object for the + * message type field. Some implementations(the generated message builders), + * however, can also hold a reference to the builder object (a nested + * builder) for the field. + * <p> + * If the field is already backed up by a nested builder, the nested builder + * will be returned. Otherwise, a new field builder will be created and + * returned. The original message field (if exist) will be merged into the + * field builder, which will then be nested into its parent builder. + * <p> + * NOTE: implementations that do not support nested builders will throw + * <code>UnsupportedException</code>. + */ + Builder getRepeatedFieldBuilder(Descriptors.FieldDescriptor field, + int index); + + /** * Sets a field to the given value. The value must be of the correct type * for this field, i.e. the same type that * {@link Message#getField(Descriptors.FieldDescriptor)} would return. |