diff options
author | kenton@google.com <kenton@google.com@630680e5-0e50-0410-840e-4b1c322b438d> | 2010-02-01 17:41:59 +0000 |
---|---|---|
committer | kenton@google.com <kenton@google.com@630680e5-0e50-0410-840e-4b1c322b438d> | 2010-02-01 17:41:59 +0000 |
commit | daee05168eb0f2cf102b7ef80c0af87c80729612 (patch) | |
tree | 9315d4071b5a7c9dc8501efb8ddb1f1d0bf09b3b /java/src/main | |
parent | ab6950d75d6bae6a1574726ee1e7060e001ed23a (diff) | |
download | protobuf-daee05168eb0f2cf102b7ef80c0af87c80729612.tar.gz protobuf-daee05168eb0f2cf102b7ef80c0af87c80729612.tar.bz2 protobuf-daee05168eb0f2cf102b7ef80c0af87c80729612.zip |
Optimize Java string serialization. Patch from Evan Jones.
Diffstat (limited to 'java/src/main')
-rw-r--r-- | java/src/main/java/com/google/protobuf/CodedOutputStream.java | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/java/src/main/java/com/google/protobuf/CodedOutputStream.java b/java/src/main/java/com/google/protobuf/CodedOutputStream.java index 58dd1506..18da6d9d 100644 --- a/java/src/main/java/com/google/protobuf/CodedOutputStream.java +++ b/java/src/main/java/com/google/protobuf/CodedOutputStream.java @@ -193,6 +193,23 @@ public final class CodedOutputStream { writeStringNoTag(value); } + /** + * Write a {@code string} field, including tag, to the stream, where bytes + * is the encoded version of value. Used by the SPEED version of messages + * to avoid performing the UTF-8 conversion twice. bytes is simply a hint + * and may be null. If it is null, value will be converted as usual. + */ + public void writeStringCached(final int fieldNumber, final String value, + ByteString bytes) + throws IOException { + // The cache can be null if serializing without getting the size first, or + // if there are multiple threads. + if (bytes == null) { + bytes = ByteString.copyFromUtf8(value); + } + writeBytes(fieldNumber, bytes); + } + /** Write a {@code group} field, including tag, to the stream. */ public void writeGroup(final int fieldNumber, final MessageLite value) throws IOException { |