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JDBI からAct-On Data のデータアクセスオブジェクトを作成

JDBI でAct-On data 用のSQL オブジェクトAPIを作成する方法を概説します。

JDBI は、Fluent スタイルとSQL オブジェクトスタイルという2つの異なるスタイルAPI を公開する、Java 用のSQL コンビニエンスライブラリです。CData JDBC Driver for Act-On は、Java アプリケーションとリアルタイムAct-On data のデータ連携を実現します。これらの技術を組み合わせることによって、Act-On data へのシンプルなコードアクセスが可能になります。ここでは、基本的なDAO(Data Access Object )とそれに付随するAct-On data の読み書きのためのコードの作成について説明します。

Act-On Images Entity のDAO を作成

The interface below declares the desired behavior for the SQL object to create a single method for each SQL statement to be implemented.

public interface MyImagesDAO { //insert new data into Act-On @SqlUpdate("INSERT INTO Images (FolderName, Name) values (:folderName, :name)") void insert(@Bind("folderName") String folderName, @Bind("name") String name); //request specific data from Act-On (String type is used for simplicity) @SqlQuery("SELECT Name FROM Images WHERE FolderName = :folderName") String findNameByFolderName(@Bind("folderName") String folderName); /* * close with no args is used to close the connection */ void close(); }

Act-On への接続を開く

Collect the necessary connection properties and construct the appropriate JDBC URL for connecting to Act-On.

ActOn uses the OAuth authentication standard. To authenticate using OAuth, you will need to create an app to obtain the OAuthClientId, OAuthClientSecret, and CallbackURL connection properties.

See the Getting Started guide in the CData driver documentation for more information.

ビルトイン接続文字列デザイナー

For assistance in constructing the JDBC URL, use the connection string designer built into the Act-On JDBC Driver.Either double-click the JAR file or execute the jar file from the command-line.

java -jar cdata.jdbc.acton.jar

Fill in the connection properties and copy the connection string to the clipboard.

A connection string for Act-On will typically look like the following:

jdbc:acton:InitiateOAuth=GETANDREFRESH

Use the configured JDBC URL to obtain an instance of the DAO interface.The particular method shown below will open a handle bound to the instance, so the instance needs to be closed explicitly to release the handle and the bound JDBC connection.

DBI dbi = new DBI("jdbc:acton:InitiateOAuth=GETANDREFRESH"); MyImagesDAO dao = dbi.open(MyImagesDAO.class); //do stuff with the DAO dao.close();

Act-On Data について

With the connection open to Act-On, simply call the previously defined method to retrieve data from the Images entity in Act-On.

//disply the result of our 'find' method String name = dao.findNameByFolderName("New Folder"); System.out.println(name);

Act-On Data の書き方

It is also simple to write data to Act-On, using the previously defined method.

//add a new entry to the Images entity dao.insert(newFolderName, newName);

Since the JDBI library is able to work with JDBC connections, you can easily produce a SQL Object API for Act-On by integrating with the CData JDBC Driver for Act-On.Download a free trial and work with live Act-On data in custom Java applications today.

 
 
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