diff options
Diffstat (limited to 'java/core/src/main/java/com/google/protobuf/MessageLite.java')
| -rw-r--r-- | java/core/src/main/java/com/google/protobuf/MessageLite.java | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/java/core/src/main/java/com/google/protobuf/MessageLite.java b/java/core/src/main/java/com/google/protobuf/MessageLite.java index 798b7943..88f531df 100644 --- a/java/core/src/main/java/com/google/protobuf/MessageLite.java +++ b/java/core/src/main/java/com/google/protobuf/MessageLite.java @@ -295,6 +295,27 @@ public interface MessageLite extends MessageLiteOrBuilder { Builder mergeFrom(InputStream input, ExtensionRegistryLite extensionRegistry) throws IOException; + + /** + * Merge {@code other} into the message being built. {@code other} must + * have the exact same type as {@code this} (i.e. + * {@code getClass().equals(getDefaultInstanceForType().getClass())}). + * + * Merging occurs as follows. For each field:<br> + * * For singular primitive fields, if the field is set in {@code other}, + * then {@code other}'s value overwrites the value in this message.<br> + * * For singular message fields, if the field is set in {@code other}, + * it is merged into the corresponding sub-message of this message + * using the same merging rules.<br> + * * For repeated fields, the elements in {@code other} are concatenated + * with the elements in this message. + * * For oneof groups, if the other message has one of the fields set, + * the group of this message is cleared and replaced by the field + * of the other message, so that the oneof constraint is preserved. + * + * This is equivalent to the {@code Message::MergeFrom} method in C++. + */ + Builder mergeFrom(MessageLite other); /** * Like {@link #mergeFrom(InputStream)}, but does not read until EOF. |