From 1ad2b99f281d587b767b36f886401e81d17915a9 Mon Sep 17 00:00:00 2001 From: Ben Johnson Date: Fri, 21 Feb 2014 17:14:56 -0700 Subject: Refactor Transaction/Bucket API. --- doc.go | 21 ++++++++++----------- 1 file changed, 10 insertions(+), 11 deletions(-) (limited to 'doc.go') diff --git a/doc.go b/doc.go index d7f3ec1..c948b05 100644 --- a/doc.go +++ b/doc.go @@ -10,19 +10,18 @@ optimized for fast read access and does not require recovery in the event of a system crash. Transactions which have not finished committing will simply be rolled back in the event of a crash. -The design of Bolt is based on Howard Chu's LMDB database project. +The design of Bolt is based on Howard Chu's LMDB project. Basics -There are only a few types in Bolt: DB, Bucket, Transaction, RWTransaction, and -Cursor. The DB is a collection of buckets and is represented by a single file -on disk. A bucket is a collection of unique keys that are associated with values. +There are only a few types in Bolt: DB, Bucket, Transaction, and Cursor. The DB +is a collection of buckets and is represented by a single file on disk. A +bucket is a collection of unique keys that are associated with values. -Transactions provide read-only access to data inside the database. They can -retrieve key/value pairs and can use Cursors to iterate over the entire dataset. -RWTransactions provide read-write access to the database. They can create and -delete buckets and they can insert and remove keys. Only one RWTransaction is -allowed at a time. +Transactions provide a consistent view of the database. They can be used for +retrieving, setting, and deleting properties. They can also be used to iterate +over all the values in a bucket. Only one writer Transaction can be in use at +a time. Caveats @@ -30,8 +29,8 @@ Caveats The database uses a read-only, memory-mapped data file to ensure that applications cannot corrupt the database, however, this means that keys and values returned from Bolt cannot be changed. Writing to a read-only byte slice -will cause Go to panic. If you need to work with data returned from a Get() you -need to first copy it to a new byte slice. +will cause Go to panic. If you need to alter data returned from a Transaction +you need to first copy it to a new byte slice. Bolt currently works on Mac OS and Linux. Windows support is coming soon. -- cgit v1.2.3