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authorBen Johnson <benbjohnson@yahoo.com>2014-02-21 17:14:56 -0700
committerBen Johnson <benbjohnson@yahoo.com>2014-02-21 22:57:50 -0700
commit1ad2b99f281d587b767b36f886401e81d17915a9 (patch)
tree7b46bfc96689af14938a9f93aab732e3e46ee709 /example_test.go
parentMerge pull request #49 from benbjohnson/stat (diff)
downloaddedo-1ad2b99f281d587b767b36f886401e81d17915a9.tar.gz
dedo-1ad2b99f281d587b767b36f886401e81d17915a9.tar.xz
Refactor Transaction/Bucket API.
Diffstat (limited to 'example_test.go')
-rw-r--r--example_test.go39
1 files changed, 21 insertions, 18 deletions
diff --git a/example_test.go b/example_test.go
index 8747f94..b3d5d20 100644
--- a/example_test.go
+++ b/example_test.go
@@ -67,11 +67,13 @@ func ExampleDB_Do() {
defer db.Close()
// Execute several commands within a write transaction.
- err := db.Do(func(t *RWTransaction) error {
+ err := db.Do(func(t *Transaction) error {
if err := t.CreateBucket("widgets"); err != nil {
return err
}
- if err := t.Put("widgets", []byte("foo"), []byte("bar")); err != nil {
+
+ b := t.Bucket("widgets")
+ if err := b.Put([]byte("foo"), []byte("bar")); err != nil {
return err
}
return nil
@@ -100,7 +102,7 @@ func ExampleDB_With() {
// Access data from within a read-only transactional block.
db.With(func(t *Transaction) error {
- v, _ := t.Get("people", []byte("john"))
+ v := t.Bucket("people").Get([]byte("john"))
fmt.Printf("John's last name is %s.\n", string(v))
return nil
})
@@ -133,29 +135,30 @@ func ExampleDB_ForEach() {
// A liger is awesome.
}
-func ExampleRWTransaction() {
+func ExampleTransaction_Commit() {
// Open the database.
var db DB
- db.Open("/tmp/bolt/rwtransaction.db", 0666)
+ db.Open("/tmp/bolt/db_rwtransaction.db", 0666)
defer db.Close()
// Create a bucket.
db.CreateBucket("widgets")
// Create several keys in a transaction.
- rwtxn, _ := db.RWTransaction()
- rwtxn.Put("widgets", []byte("john"), []byte("blue"))
- rwtxn.Put("widgets", []byte("abby"), []byte("red"))
- rwtxn.Put("widgets", []byte("zephyr"), []byte("purple"))
- rwtxn.Commit()
+ txn, _ := db.RWTransaction()
+ b := txn.Bucket("widgets")
+ b.Put([]byte("john"), []byte("blue"))
+ b.Put([]byte("abby"), []byte("red"))
+ b.Put([]byte("zephyr"), []byte("purple"))
+ txn.Commit()
// Iterate over the values in sorted key order.
- txn, _ := db.Transaction()
- c, _ := txn.Cursor("widgets")
+ txn, _ = db.Transaction()
+ c := txn.Bucket("widgets").Cursor()
for k, v := c.First(); k != nil; k, v = c.Next() {
fmt.Printf("%s likes %s\n", string(k), string(v))
}
- txn.Close()
+ txn.Rollback()
// Output:
// abby likes red
@@ -163,10 +166,10 @@ func ExampleRWTransaction() {
// zephyr likes purple
}
-func ExampleRWTransaction_rollback() {
+func ExampleTransaction_Rollback() {
// Open the database.
var db DB
- db.Open("/tmp/bolt/rwtransaction_rollback.db", 0666)
+ db.Open("/tmp/bolt/transaction_close.db", 0666)
defer db.Close()
// Create a bucket.
@@ -176,9 +179,9 @@ func ExampleRWTransaction_rollback() {
db.Put("widgets", []byte("foo"), []byte("bar"))
// Update the key but rollback the transaction so it never saves.
- rwtxn, _ := db.RWTransaction()
- rwtxn.Put("widgets", []byte("foo"), []byte("baz"))
- rwtxn.Rollback()
+ txn, _ := db.RWTransaction()
+ txn.Bucket("widgets").Put([]byte("foo"), []byte("baz"))
+ txn.Rollback()
// Ensure that our original value is still set.
value, _ := db.Get("widgets", []byte("foo"))