目次
更新操作としてCouchbase内の既存の情報を更新したり変更する様々なメソッドをサポートしています。利用可能なメソッドのリストは以下に記載されています。
表7.1 Javaクライアントライブラリの更新メソッド
| Method | Title |
|---|---|
client.append(casunique, key, value) | Append a value to an existing key |
client.append(casunique, key, value, transcoder) | Append a value to an existing key |
client.asyncCAS(key, casunique, value) | Asynchronously compare and set a value |
client.asyncCAS(key, casunique, expiry, value, transcoder) | Asynchronously compare and set a value with custom transcoder and expiry |
client.asyncCAS(key, casunique, value, transcoder) | Asynchronously compare and set a value with custom transcoder |
client.asyncDecr(key, offset) | Asynchronously decrement the value of an existing key |
client.asyncIncr(key, offset) | Asynchronously increment the value of an existing key |
client.cas(key, casunique, value) | Compare and set |
client.cas(key, casunique, expiry, value, transcoder) | Compare and set with a custom transcoder and expiry |
client.cas(key, casunique, value, transcoder) | Compare and set with a custom transcoder |
client.decr(key, offset) | Decrement the value of an existing numeric key |
client.decr(key, offset, default) | Decrement the value of a key, setting the initial value if the key didn't already exist |
client.decr(key, offset, default, expiry) | Decrement the value of a key, setting the initial value if the key didn't already exist, with an expiry |
client.delete(key) | Delete the specified key |
client.incr(key, offset) | Increment the value of an existing numeric key |
client.incr(key, offset, default) | Increment the value of an existing numeric key |
client.incr(key, offset, default, expiry) | Increment the value of an existing numeric key |
client.prepend(casunique, key, value) | Prepend a value to an existing key using the default transcoder |
client.prepend(casunique, key, value, transcoder) | Prepend a value to an existing key using a custom transcoder |
client.touch(key, expiry) | Update the expiry time of an item |