以下の例により、作業域区画マネージャーのインターフェースの使用について 説明します。この例は、プログラマチックに作業域区画を作成およびリトリーブする 方法を示しています。ただし、作業域区画のプログラマチックな作成は、Java 2 platform, Enterprise Edition (J2EE) クライアントでのみ使用可能であることに ご注意ください。サーバー上で作業域区画を作成するには、管理コンソールを 使用する必要があります。区画を構成する上で使用可能な構成パラメーターについては、 作業域区画サービス を参照してください。
import com.ibm.websphere.workarea.WorkAreaPartitionManager; import com.ibm.websphere.workarea.UserWorkArea; import com.ibm.websphere.workarea.PartitionAlreadyExistsException; import com.ibm.websphere.workarea.NoSuchPartitionException; import java.lang.IllegalAccessError; import java.util.Properties; import javax.naming.InitialContext; //This sample demonstrates how to retrieve an instance of the //WorkAreaPartitionManager implementation and how to use that //instance to create a WorkArea partition and retrieve a partition. //NOTE: Creating a partition in the way listed below is only available //on a J2EE client. To create a partition on the server use the //WebSphere administrative console. Retrieving a WorkArea //partition is performed in the same way on both client and server. public class Example { //The name of the partition to create/retrieve String partitionName = "myPartitionName"; //The name in java naming the WorkAreaPartitionManager instance is bound to String jndiName = "java:comp/websphere/WorkAreaPartitionManager"; //On a J2EE client a user would create a partition as follows: public UserWorkArea myCreate(){ //Variable to hold our WorkAreaPartitionManager reference WorkAreaPartitionManager partitionManager = null; //Get an instance of the WorkAreaPartitionManager implementation try { InitialContext initialContext = new InitialContext(); partitionManager = (WorkAreaPartitionManager) initialContext.lookup(jndiName); } catch (Exception e) { } //Set the properties to configure our WorkArea partition Properties props = new Properties(); props.put("maxSendSize","12345"); props.put("maxReceiveSize","54321"); props.put("Bidirectional","true"); props.put("DeferredAttributeSerialization","true"); //Variable used to hold the newly created WorkArea Partition UserWorkArea myPartition = null; try{ //This is the way to create a partition on the J2EE client. Use the //WebSphere Administrative Console to create a WorkArea Partition //on the server. myPartition = partitionManager.createWorkAreaPartition(partitionName,props); } catch (PartitionAlreadyExistsException e){ } catch (IllegalAccessException e){ } return myPartition; } //. . . . //In order to retrieve a WorkArea partition at some time later or //from some other class, do the following (from client or server): public UserWorkArea myGet(){ //Variable to hold our WorkAreaPartitionManager reference WorkAreaPartitionManager partitionManager = null; //Get an instance of the WorkAreaPartitionManager implementation try { InitialContext initialContext = new InitialContext(); partitionManager = (WorkAreaPartitionManager) initialContext.lookup(jndiName); } catch (Exception e) { } //Variable used to hold the retrieved WorkArea partition UserWorkArea myPartition = null; try{ myPartition = partitionManager.getWorkAreaPartition(partitionName); }catch(NoSuchPartitionException e){ } return myPartition; } }